A term that appears linguistically minor can be technically decisive once embedded in a legal instrument.

Why “nontransitory” matters in patent language

In patent drafting, particularly in software and computer-implemented inventions, the phrase “non-transitory computer-readable medium” has a specific and settled legal function. It is used to distinguish patent-eligible subject matter from abstract ideas, ensuring compliance with patentability requirements in multiple jurisdictions.

The term does not describe hardware components or physical circuitry. Instead, it clarifies that stored instructions exist in a persistent form, rather than as fleeting signals. Replacing nontransitory with nontransistor fundamentally alters the meaning. A transistor is a physical electronic component; introducing that concept into a claim intended to define software storage can distort the scope of protection and introduce technical inconsistency.

In patent law, such inconsistencies are not cosmetic. They may affect:

• claim construction;
• examination outcomes;
• enforceability;
• and validity in later infringement or revocation proceedings.

Translation errors and the problem of permanence

While some errors can be corrected during prosecution, others may only be discovered after publication or grant, when correction mechanisms are limited, formal, and jurisdiction-specific.

In some patent offices, post-filing corrections are permitted only where the error is “obvious” and the intended meaning is immediately clear. A mistranslation that introduces a plausible but incorrect technical term may fail that test. Even when correction is theoretically possible, it can involve additional filings, fees, delays, and legal argument—none of which are desirable for rights that are often time-critical and commercially sensitive.

The scale of the risk in multilingual patent systems

Patent translation risk is not confined to rare edge cases. Patent activity is increasingly international, with filings routinely translated across multiple languages for national phase entries and regional protection.

According to data published by the World Intellectual Property Organization, a substantial proportion of international patent applications enter national phases in non-English jurisdictions, requiring translation into local languages for examination and grant. Each translation step introduces potential risk, particularly where:

• technical terminology has no direct equivalent;
• legal drafting conventions differ between jurisdictions; or
• translators lack subject-matter specialism in patent law.

Academic literature on patent quality has consistently noted that linguistic ambiguity and drafting inconsistency can weaken patents even where the underlying invention is strong. Translation errors amplify that vulnerability.

Why machine translation alone is insufficient for patents

Modern machine translation systems can be effective for general comprehension. However, patent drafting requires controlled terminology, contextual awareness, and consistency across claims, descriptions, and drawings. Machine systems may treat “nontransitory” as an uncommon or malformed word and substitute a more familiar technical term, such as “nontransistor,” without recognising the legal significance of the original phrase.

This risk is heightened where:

• the term is rare outside patent law;
• the surrounding context includes electronics-related vocabulary;
• or the system lacks domain-specific training and safeguards.

For patent documents, fluency is not the objective. Legal effect is.

The role of specialist legal and patent translators

The Ukrainian example underscores the importance of using translators who combine:

• linguistic competence;
• technical subject-matter knowledge; and
• familiarity with patent drafting conventions.

Professional patent translators work within structured workflows that include terminology management, consistency checks, and revision by a second linguist. These controls are designed to prevent exactly the type of error seen in the nontransitory / nontransistor example.

From a client perspective—whether an innovator, in-house counsel, or patent attorney—the cost of specialist translation is modest when set against the potential loss of enforceable rights or the expense of corrective proceedings.

Lessons for clients commissioning patent translations

Three practical conclusions follow from this case:

1. Minor words can define major rights
   In patents, there are no harmless substitutions. Every term must be legally and technically justified.
2. Patent translation is not generic technical translation
   It requires legal drafting awareness and jurisdiction-specific knowledge, not just language proficiency.
3. Early accuracy reduces long-term risk
   Errors caught late are more expensive and more uncertain to correct.

Conclusion

The mistranslation of “nontransitory” as “nontransistor” may appear trivial at first glance, but it illustrates a fundamental truth of patent law: precision is cumulative, and errors compound. In multilingual patent practice, translation is not an administrative afterthought but a necessary function in protecting innovation.

For clients seeking to secure and enforce patent rights across borders, specialist legal translation is not a discretionary extra. It is a required tool in ensuring that what is invented, claimed, and protected remains consistent—word by word, and jurisdiction by jurisdiction.

The key question is not whether you can translate a PDF for free, but whether the result is fit for purpose in a legal context.

Why PDFs are so commonly used (and why that matters for translation)

PDFs are a default format for contracts, court bundles, disclosure packs, corporate records, and immigration files because they preserve layout and are easy to share. The format is also widespread online: analysis of Common Crawl data has described PDF as one of the most common file formats on the web.

That popularity has a downside: PDFs often contain scanned pages, stamps, handwritten notes, signatures, tables, and exhibits. Free translation tools can struggle with these features, particularly where the text is embedded as an image (a scan) rather than selectable text.

When a free translation is usually fine

A free tool can be reasonable when:

• You are reading a document for general understanding only.
• The document contains no sensitive personal data and no confidential commercial information.
• The translation will not be submitted to a court, regulator, bank, insurer, employer, or other decision-maker.
• You can tolerate imperfect terminology and occasional ambiguity.

Examples: getting the gist of a foreign-language brochure; reading informal correspondence; checking whether a document is broadly relevant before instructing a professional.

Where free PDF translation becomes risky for legal use

1) Confidentiality and data protection exposure

Legal PDFs frequently contain personal data (names, addresses, health information, financial details) and sometimes special category data. UK data protection law requires personal data to be handled securely and in line with data protection principles.

If you upload a client document to a free online translator, you may be disclosing data to a third party. From a compliance perspective, that is not a trivial step: organisations must be able to justify data sharing and demonstrate accountability.

A practical reality check: the UK Government’s Cyber Security Breaches Survey 2025 found that 43% of businesses reported a cyber security breach or attack in the previous 12 months.
That does not mean every translation provider is unsafe—but it underlines why due diligence, secure handling, and contractual controls matter.

2) Legal meaning is not the same as fluent language

Modern machine translation can sound confident while missing the legal effect of a clause. In legal documents, small distinctions—shall vs may, “best endeavours”, limitation language, defined terms—can carry major consequences.

Academic work comparing human and AI translation in legal contexts continues to highlight quality differences and the risks of relying on machine output alone for legal texts.

3) Certification requirements and acceptance risk

Many institutions require a certified translation (and sometimes a sworn translation, depending on jurisdiction and document type). Courts, the Home Office context, notaries, banks, and overseas authorities may reject translations that lack a statement of accuracy, translator credentials, and proper formatting.

Free tools do not provide a chain of responsibility: no qualified translator, no revision stage, no certificate, no professional indemnity, and no accountable supplier relationship.

4) Formatting, exhibits, and “what the PDF is actually saying”

Legal PDFs often rely on layout: columns, footnotes, schedules, strike-through amendments, numbered definitions, and cross-references. Free tools may:

• scramble numbering and clause references;
• mistranslate headers or footnotes;
• omit text embedded in images;
• fail to reproduce tables correctly.

That is particularly dangerous where a translated version is used to make decisions about litigation, settlement, compliance, or contractual obligations.

What professional legal translation adds (beyond the words)

If you are instructing translation for legal use, you are typically paying for risk control, not just language conversion. A competent legal translation service should offer:

• Qualified linguists with legal specialism (and the right jurisdictional awareness).
• Revision by a second person and structured QA processes (a recognised requirement in quality frameworks for translation services).
• Secure handling: encryption in transit, access control, retention limits, NDAs, and processor terms where relevant.
• Terminology management: consistent defined terms across a contract suite or case file.
• Certification where required, including a statement of accuracy and translator details.

As a market indicator, the UK language services market has been estimated at £1.9–£2.1 billion (with performance described as broadly flat from 2023 to 2025, adjusted for inflation). The Association of Translation Companies Demand is substantial because organisations need translation that stands up to scrutiny.

A sensible decision rule for clients

Use a free PDF translator only if all of the following are true:

1. the translation is for internal understanding only;
2. the document is non-sensitive;
3. no third party will rely on the translation; and
4. you can accept errors without consequence.

If any of those are not true, instruct a legal translation service—especially for:

• contracts, NDAs, terms, shareholder documents;
• litigation materials, witness statements, expert reports;
• immigration and family law evidence packs;
• regulatory submissions and compliance documentation.

If cost is the issue: reduce spend without increasing risk

A good provider can often cut cost by:

• extracting only the relevant sections for translation;
• translating “for information” first, then certifying only what must be filed;
• using secure workflows and, where appropriate, human post-editing of pre-processed text under controlled conditions.

The objective is not to avoid technology, but to ensure accountability, confidentiality, and legal accuracy.

Free and Confidential Translation for Solicitors

For solicitors and legal teams, cost efficiency must never come at the expense of confidentiality. While many free online machine translation tools appear convenient, they often involve data retention, reuse for training purposes, or unclear storage arrangements—all of which present obvious professional and regulatory concerns.

A more appropriate alternative is paid-for machine translation provided at no additional cost, delivered within a secure and confidential environment.

IMD Translation’s secure machine translation service, available via legaltranslation.ai, provides paid-for machine translation at no cost to users, without the risks associated with public online tools. Unlike generic free MT engines, no data is retained, reused, or stored once processing is complete, ensuring confidentiality in line with solicitors’ professional obligations.

This solution offers rapid, secure translations for internal review and early-stage document assessment, while preserving full control over client data. Where greater accuracy or formal use is required, solicitors can seamlessly upgrade to human legal translation, including revision and certification where necessary.

The result is a practical and compliant approach: speed and cost efficiency through secure machine translation, with a clear pathway to professional human translation when legal precision is required.

A Chinese national sought to join her British husband in the UK by applying for settlement. This process required her to provide substantial evidence of her circumstances, including translating key documents such as her marriage certificate and household registration documents (Hukou).

Ensuring such critical documents are translated accurately and professionally is critical in any immigration case. Any errors or misinterpretations could lead to delays or even rejection of the application, causing significant emotional, logistical, and financial strain on the individuals.

Solution

The couple engaged a professional translation service specialising in legal documents – IMD Translation! The translators meticulously converted the documents, including marriage certificate and Hukou, into English, ensuring that every detail was precise and legally sound, and the translations were certified appropriately.

Outcome

Thanks to the flawless translations, the applicant was able to present clear and accurate evidence to the UK immigration authorities leading to the successful approval of her application. As a result, she was able to join her husband in the UK, allowing them to continue happy matrimonial life.

Conclusion

This case underscores the importance of professional translation services in legal contexts for the simple reason that the impact on private individuals and their lives is massive. One mistranslation can potentially have life changing consequences.

For UK-based solicitors and law firms, partnering with expert translators can be the key to achieving successful outcomes for clients. Accurate translations not only facilitate smoother legal processes but also help clients avoid unnecessary stress and setbacks, ultimately leading to happier and more satisfied clients.

If you require language services, reach out to our team today to understand how we can add value to your case at info@imdtranslation.co.uk

This particular legal case involved a complex dispute over inheritance of an estate located in Morocco which had been ongoing for several years.

The claimant, based in the UK, had faced significant language barriers when dealing with Moroccan solicitors and reviewing Arabic documents related to the estate. This lack of proficiency in Moroccan Arabic posed a considerable challenge, potentially affecting the claimant’s ability to present their case effectively.

To overcome the language barrier and ensure a fair legal process, the claimant engaged IMD Translation in the provision of translation and interpreting services. This resulted in all relevant documents, comprising court filings, correspondence, and conveyancing documents being accurately translated, including nuances, legal terminology, and cultural context, from Arabic and French in to English.

During meetings with Moroccan solicitors, IMD’s professional interpreters, proficient in both Moroccan Arabic and English, facilitated communication to ensure discussions were accurate and clearly understood by all parties.

Legal translation and interpreting services provided specialised knowledge of cultural nuance and legal terminology specific to both Moroccan and UK law. This expertise was crucial for understanding the related cultural and legal conceptsand ensuring accurate translation and interpreting.

Translation services were prompt, ensuring that the claimant received timely translations for court hearings, negotiations, and correspondence, allowing the case to progress efficiently.

The Results:

The effective use of language services led to several positive outcomes:

–        Improved Communication: The claimant could actively engage in meetings with Moroccan solicitors and stakeholders, contributing to a more effective legal process.

–        Accurate Understanding: Translated documents allowed the claimant to comprehend legal intricacies and make informed decisions.

–        Successful Outcome: After years of litigation, the case was eventually ruled in favour of the UK-based claimant.

The Conclusion:

In cross-border legal cases like this, professional translation and interpreting services bridge language and cultural gaps, ensuring fair representation and effective communication. By leveraging expert language services, the claimant successfully navigated a complex estate dispute, ultimately securing a favourable outcome.

If you have a case involving other language speakers and documentation, don’t let it get in the way of a positive outcome – speak to IMD Translation today at info@imdtranslation.co.uk or 03309121530

In May 2019, a road traffic accident led to a claim for injuries and hire charges of nearly £50,000 by a Turkish-speaking claimant. Despite initial admissions, the Defendant accused the Claimant and her daughter-in-law of fraud, leading to a counterclaim.

The Claimant’s first language was Turkish. The witness statement, drafted and signed in English without a Turkish version, claimed ignorance of the hire agreement’s cost and the term ‘impecuniosity.’ At pre-trial review, the Claimant’s solicitors were ordered to clarify in writing that the Claimant’s witness statements were compliant with CPR Part 32 and that the Statements of Truth complied with CPR Part 22.

The pre-trial checklist stated an interpreter was requested for trial due to the Claimant’s limited English proficiency and health issues. The Claimant’s Counsel told the Judge that the Claimant was: “unable to read properly her witness statement or the pleadings, which were in English, as she was only proficient in Turkish”.

The Claimant’s inability to understand English documentation and failure to pay the trial fee resulted in the claim’s dismissal; and £25,000 judgment for the Defendant’s counterclaim was awarded, with costs pending assessment due to conduct potentially obstructing justice.

Wasted costs and Witness Statements

The Claimant’s solicitors were ordered to show cause for not being liable for costs due to issues with translating documents for a Turkish-speaking client. Despite claims that the Claimant understood English, the Defendant highlighted previous concerns about the need for translation. The Claimant’s solicitors had cited time constraints for not providing an initial Turkish statement and aimed to do so if a stay was granted.

The Claimant’s statement was served 11 months later, leading to a Wasted Costs Order by HHJ Monty KC on 25 July 2023. This totalled£16,500 for various failures, including not providing properly translated statements, for which the Judge found that “without properly translated statements, this was a disaster waiting to happen”.

The solicitors’ defence was deemed unsatisfactory, lacking relevant correspondence and evidence from involved fee-earners. The Judge cited negligence and a breach of duty to the Court, resulting in wasted costs. The solicitors’ conduct was criticized for not addressing the language issue and failing to provide evidence or relevant documents, leading to increased costs.

Within their appeal, the solicitors argued that the Judge did not properly consider proportionality, and that the wasted costs jurisdiction should be “clear and obvious”, as per Harrison v Harrison.

They contended that the Judge’s discretion should not be interfered with and that the costs had already been incurred; however, the written defence of the application by the Claimant’s solicitors, put forward by a senior partner of the firm, did not make it clear to the Court whether the partner had ever actually personally spoken with or heard the Claimant speak. This led the Judge to comment that “the absence of such evidence is in the nature of a deafening silence”.

The Judge’s decision was upheld, finding that there were violations of CPR Part 32 and PD 22, as well as a breach of the overriding objective, which requires the Court to handle cases fairly and efficiently by, amongst other, enforcing compliance with rules, directions, and orders.

Wasted Costs

–        A Judge’s discretion in considering proportionality when allowing a wasted costs application to proceed remains wide, as per Mr Justice Martin Spencer’s comment “No hard and fast rule can be laid down because the circumstances in which a wasted costs application may be made are infinitely varied”.

–        Respondent solicitors who unreasonably obstruct a wasted costs application (e.g., by defending the indefensible) may not rely on the extra costs generated to argue against proportionality (CPR 44.5(3) considers “additional work generated by the conduct of the paying party” as a metric for assessing proportionality)

–        Any argument that the application should be dismissed on proportionality grounds must be raised at the earliest possible stage. Waiting until the full hearing of the application is likely too late, as costs would already be incurred.

–         Where a Judge decides to make a “show cause” order, they should consider giving a direction that the applicant identify matters referred to in PD 46, paragraph 5.9, being: a) what the legal representative is alleged to have done or failed to do and b) the costs that the legal representative may be ordered to pay or which are sought against the legal representative, as early as possible.

Witness statements

–        The English proficiency of a witness is crucial.

–        It does not necessarily matter what the witness’s “own language” or “mother tongue” is; witnesses who are bi-lingual or otherwise sufficiently fluent in English can give evidence in English. (Afzal -v- UK Insurance Ltd [2023] EWHC 1730) / a witness’s own language includes any language in which the witness is sufficiently fluent to give oral evidence (including under cross-examination) (Business and Property Court Guide)

–        The ability to be cross-examined in English is the obvious litmus test (is the witness’ English good enough to allow them to give their best evidence, in a situation which the witness may find stressful?)

–        A witness who professes the ability to read and understand an English statement, but who has an interpreter to assist at trial, is potentially open to challenge.

Pertinent CPR Provisions

CPR Part 22 and Practice Direction (PD) 22 deals with statements of truth –

·        R.22.1(1): The following documents must be verified by a statement of truth … (c) a witness statement.

·        R.22.3: If the maker of a witness statement fails to verify the witness statement by a statement of truth the court may direct that it shall not be admissible as evidence.

·        PD 22, 2.4. The statement of truth verifying a witness statement must be in the witness’s own language.

CPR Part 32 deals with witness statements –

·        R.32.4(1): A witness statement is a written statement signed by a person which contains the evidence which that person would be allowed to give orally.

·        R.32.8: A witness statement must comply with the requirements set out in Practice Direction 32.

The Practice Direction to part 32 (“PD32”) sets out the requirements for the preparation of witness statements:

·        PD32: 18.1. The witness statement must, if practicable, be in the intended witness’s own words and must in any event be drafted in their own language.

·        PD32: 19.1. A witness statement should – (8) be drafted in the witness’s own language.

·        PD32: 20.1. A witness statement is the equivalent of the oral evidence which that witness would, if called, give in evidence it must include a statement by the intended witness in their own language that they believe the facts in it are true.

·        PD32: 23.2. Where a witness statement is in a foreign language the party wishing to rely on it must (i) have it translated; and (ii) file the foreign language witness statement with the court; […]

Note that according to PD32: 25.1., where an affidavit, witness statement, or exhibit to either an affidavit or a witness statement does not comply with Part 32 or the Practice Direction in relation to its form, the Court may refuse to admit it as evidence and may refuse to allow the costs arising from its preparation.

Please see also provisions in the King’s Bench Guide, Chancery Guide and the Business and Property Courts Guide for additional information.

Need a Witness Statement Translation?

Look no further than IMD Translation! Witness Statements are a speciality – get in touch with our team to discuss your needs at info@imdtranslation.co.uk or 03309121530.