{"id":120834,"date":"2026-11-08T22:04:55","date_gmt":"2026-11-08T13:04:55","guid":{"rendered":"https:\/\/easternwest.net\/post\/?p=120834"},"modified":"2026-10-27T22:11:16","modified_gmt":"2026-10-27T13:11:16","slug":"late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling","status":"publish","type":"post","link":"https:\/\/easternwest.net\/post\/late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling\/","title":{"rendered":"Late Translations Can Sink Your Invalidity Attack: Spain\u2019s Supreme Court Patent Ruling"},"content":{"rendered":"\n<h1 class=\"wp-block-heading has-medium-font-size\"><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The prior-art documents were already in the case file. An expert had discussed them. Yet late translations left a patent challenger unable to rely on essential material supporting its attack.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For companies preparing international patent disputes in 2026, Spain\u2019s Supreme Court judgment No. 1445\/2023, delivered on 20 October 2023, remains a concrete warning about evidence preparation. The issue was not whether a translator could eventually produce an accurate document. It was whether the necessary translations had arrived at the procedural stage when they belonged.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A strong technical argument can lose its foundation when the documents supporting it are not properly presented.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/easternwest.net\/post\/late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling\/#The_documents_arrived_before_their_translations_%E2%9A%96%EF%B8%8F\" >The documents arrived before their translations \u2696\ufe0f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/easternwest.net\/post\/late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling\/#Why_an_experts_explanation_does_not_replace_the_underlying_evidence\" >Why an expert\u2019s explanation does not replace the underlying evidence<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/easternwest.net\/post\/late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling\/#The_procedural_rule_was_about_more_than_convenience\" >The procedural rule was about more than convenience<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/easternwest.net\/post\/late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling\/#The_dangerous_gap_between_%E2%80%9Clocated%E2%80%9D_and_%E2%80%9Cready%E2%80%9D_%F0%9F%93%82\" >The dangerous gap between \u201clocated\u201d and \u201cready\u201d \ud83d\udcc2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/easternwest.net\/post\/late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling\/#A_rushed_translation_can_introduce_a_second_problem_%F0%9F%94%8D\" >A rushed translation can introduce a second problem \ud83d\udd0d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/easternwest.net\/post\/late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling\/#Korean-language_work_requires_its_own_assignment\" >Korean-language work requires its own assignment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/easternwest.net\/post\/late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling\/#Build_the_translation_deadline_backward_from_filing_%E2%8F%B1%EF%B8%8F\" >Build the translation deadline backward from filing \u23f1\ufe0f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/easternwest.net\/post\/late-translations-can-sink-your-invalidity-attack-spains-supreme-court-patent-ruling\/#Give_counsel_a_usable_evidence_package\" >Give counsel a usable evidence package<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_documents_arrived_before_their_translations_%E2%9A%96%EF%B8%8F\"><\/span>The documents arrived before their translations \u2696\ufe0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The litigation concerned a tricycle patent. The defendant counterclaimed for invalidity, relying on an expert report that discussed four earlier patents. Three references were foreign-language documents: two French patents and one German patent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The originals accompanied the report, which contained partial translations. Complete translations were offered at the preliminary hearing, after the patent owner had answered the counterclaim and raised the omission.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Supreme Court upheld their exclusion as late. These references were essential to the inventive-step challenge, and their relevance existed when the counterclaim was filed. It had not arisen because of the opponent\u2019s response. The attempted introduction on appeal did not cure the problem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The court\u2019s reasoning concerned the evidence underlying the invalidity argument. The judgment also addressed infringement separately; the whole dispute should not be reduced to a translation deadline. <a href=\"https:\/\/www.iberley.es\/jurisprudencia\/sentencia-civil-tribunal-supremo-20-10-23-48540483?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">Iberley<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The distinction matters commercially. Finding useful prior art and presenting usable evidence are separate tasks, with separate opportunities for failure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_an_experts_explanation_does_not_replace_the_underlying_evidence\"><\/span>Why an expert\u2019s explanation does not replace the underlying evidence<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">An expert report explains what technical material means and why it matters. A translation makes the underlying foreign-language material accessible for examination.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Those functions overlap, but they are not identical.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An expert may translate the sentences supporting a particular conclusion while leaving surrounding passages untranslated. The opposing expert may need those surrounding passages to assess whether the conclusion is justified. A definition, alternative embodiment, or limitation elsewhere in the document may change the analysis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Consider a hypothetical mechanical patent dispute. An expert quotes a passage describing a steering connection. Elsewhere, the same publication explains that the connection operates only in a specific configuration. Translating the quotation alone could leave that qualification outside the reader\u2019s view.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is not a description of an additional finding in the Spanish case. It illustrates why selected excerpts and a complete evidentiary document serve different purposes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The translation should allow the technical argument to be tested, including by someone who disagrees with it.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_procedural_rule_was_about_more_than_convenience\"><\/span>The procedural rule was about more than convenience<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Article 144 of Spain\u2019s Civil Procedure Act requires a translation to accompany a document written in a language other than Spanish or, where applicable, the relevant regional official language. Article 265 addresses the submission of documents supporting the parties\u2019 positions with their pleadings, while allowing specified exceptions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The framework does not mean that every translation must initially be sworn or official. Article 144 permits a privately prepared translation and provides a mechanism for challenging its accuracy. Timing, completeness, and the form of translation are distinct questions. <a href=\"https:\/\/www.boe.es\/buscar\/act.php?id=BOE-A-2000-323&amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">boe.es<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For an international business, the practical instruction is therefore more precise than \u201corder certified translations.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ask local counsel which documents must be translated, how much must be translated, what form is acceptable, and when each translation must be filed. Then give the language team enough time to meet those requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Paying for a more formal translation does not, by itself, resolve a missed procedural deadline.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_dangerous_gap_between_%E2%80%9Clocated%E2%80%9D_and_%E2%80%9Cready%E2%80%9D_%F0%9F%93%82\"><\/span>The dangerous gap between \u201clocated\u201d and \u201cready\u201d \ud83d\udcc2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Patent evidence often passes through several people before reaching counsel. A researcher identifies a publication, an engineer evaluates it, an expert incorporates it into a report, and a litigation team assembles the exhibits.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Each handover can create the impression that someone else has handled the language requirement.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Status reported internally<\/th><th>What it actually establishes<\/th><th>What may still be missing<\/th><\/tr><\/thead><tbody><tr><td>\u201cPrior art located\u201d<\/td><td>A candidate document has been found<\/td><td>Correct publication and complete source<\/td><\/tr><tr><td>\u201cReviewed by the engineer\u201d<\/td><td>Its technical relevance has been considered<\/td><td>Translation suitable for the intended use<\/td><\/tr><tr><td>\u201cIncluded in the expert report\u201d<\/td><td>The expert has referred to it<\/td><td>Required translation of the underlying exhibit<\/td><\/tr><tr><td>\u201cTranslation ordered\u201d<\/td><td>Work has been commissioned<\/td><td>Review, approval, and delivery<\/td><\/tr><tr><td>\u201cTranslation delivered\u201d<\/td><td>A language file is available<\/td><td>Counsel\u2019s acceptance and actual filing<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The final row deserves attention. A translation sitting in an email inbox is not necessarily part of the filed evidence.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A litigation schedule should identify both delivery to counsel and submission to the court. Treating them as one event hides the time needed for exhibit numbering, pagination, review, and corrections.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"A_rushed_translation_can_introduce_a_second_problem_%F0%9F%94%8D\"><\/span>A rushed translation can introduce a second problem \ud83d\udd0d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Meeting the deadline does not remove the need for accuracy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Patent disputes frequently depend on relationships that appear minor in ordinary business writing: whether two elements are connected directly, whether a step is mandatory, or whether a feature belongs to one embodiment rather than every implementation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A translation prepared under severe time pressure may preserve all the technical nouns while changing those relationships.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Three illustrative checks show what substantive review should cover:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Component identity.<\/strong><br>If the source distinguishes a retaining ring from a locking ring, the translation should not merge them simply because their functions appear similar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Operating sequence.<\/strong><br>If a release occurs after a latch disengages, the wording should preserve that order. Reversing the sequence can describe a different mechanism.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Reference alignment.<\/strong><br>A translated paragraph must still point to the correct figure and component number. A correct sentence paired with the wrong drawing can mislead the reader just as effectively as a mistranslated sentence.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These are general review examples, not claims about defects found in the Spanish proceedings.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Korean-language_work_requires_its_own_assignment\"><\/span>Korean-language work requires its own assignment<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Spanish ruling does not establish Korean procedural law. Nor does a Korean translation satisfy a Spanish court\u2019s language requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Its operational lesson is nevertheless relevant to overseas companies working with Korean engineers, subsidiaries, manufacturers, or patent counsel: define the purpose of each language version early.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A Korean version prepared for internal technical assessment may help a research team understand foreign prior art. A document intended for submission in Korean proceedings requires a separate brief based on the applicable procedure and counsel\u2019s instructions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The distinction should be visible in the project records. Internal summaries, selected translations, and complete exhibit translations should not circulate under indistinguishable filenames.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For Korean patent translation, source control is equally important. The team should identify the exact publication, confirm that all pages are available, and retain stable references between the source and translated text. A related patent-family document may be helpful background, but it should not silently replace the document actually cited.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Build_the_translation_deadline_backward_from_filing_%E2%8F%B1%EF%B8%8F\"><\/span>Build the translation deadline backward from filing \u23f1\ufe0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The court\u2019s filing date is the last point in a sequence of dependent tasks. It should not become the translator\u2019s delivery date by default.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Start with counsel\u2019s submission requirements. Allow time before that for legal review and exhibit preparation. Before legal review, reserve time for technical questions and translation quality checks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A practical commissioning brief should establish:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The exact documents and versions covered by the assignment.<\/li>\n\n\n\n<li>Whether full translations or defined extracts are required.<\/li>\n\n\n\n<li>The target language and any procedural formalities confirmed by counsel.<\/li>\n\n\n\n<li>The terminology and reference conventions used in the expert report.<\/li>\n\n\n\n<li>The person authorized to resolve source ambiguities.<\/li>\n\n\n\n<li>Separate dates for draft review, final delivery, and filing.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If the expert\u2019s references change, the translation scope must be updated immediately. Adding a document to a report without adding it to the translation schedule creates an avoidable mismatch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Give_counsel_a_usable_evidence_package\"><\/span>Give counsel a usable evidence package<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Our Korean-language patent support can be organized around complete specifications, selected technical evidence, and review of existing Korean translations. The assignment should preserve the distinction between the source text, the expert\u2019s analysis, and any translator queries.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For a document-heavy dispute, an exhibit register can identify the source filename, publication number, translation status, reviewer, and approved delivery version. Unresolved issues should remain visible until the responsible person addresses them.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Before the evidence package leaves the team, compare the expert report\u2019s references with the translated exhibits one by one. Every cited document should have a confirmed status. Every missing page, untranslated section, or unresolved qualification should have a named owner and a decision from counsel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Legal reference points: Supreme Court judgment No. 1445\/2023, 20 October 2023, ECLI:ES:TS:2023:4412; and Articles 144 and 265 of Spain\u2019s Civil Procedure Act. The official state gazette provides the legislation and a judicial-reference entry linking to the decision (source: <a href=\"https:\/\/www.boe.es?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">https:\/\/www.boe.es<\/a>).<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The prior-art documents were already in the case file. An expert had discussed them. Yet late translations left a patent challenger unable to rely on essential material supporting its attack. For companies preparing international patent disputes in 2026, Spain\u2019s Supreme Court judgment No. 1445\/2023, delivered on 20 October 2023, remains a concrete warning about evidence [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-120834","post","type-post","status-publish","format-standard","hentry","category-translation-updates"],"_links":{"self":[{"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/posts\/120834","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/comments?post=120834"}],"version-history":[{"count":2,"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/posts\/120834\/revisions"}],"predecessor-version":[{"id":120836,"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/posts\/120834\/revisions\/120836"}],"wp:attachment":[{"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/media?parent=120834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/categories?post=120834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/easternwest.net\/post\/wp-json\/wp\/v2\/tags?post=120834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}