European Patents

Secure your innovation's future in the Czech and Slovak markets with our leading European Patent Validation service. As one of the top Czech Law and Patent Offices, we have successfully completed over 29,000 EP Validations, ensuring your European patents receive the same legal standing as national patents granted by the Czech IPO and Slovak IPO.

Secure your EP Validation
in Czechia and Slovakia 50% OFF
on second filing

Why THK Legal?

Experience ease and precision in European Patent (EP) Validation with our specialized expertise in the Czech and Slovak markets. At the core of our service is a dedicated team of experienced Patent Attorneys, supported by over 50 Subject Matter Experts and Translators, ensuring priority and precision in every project. Our EP Validation team comprises true specialists, each an authority in their respective fields including chemistry, genetics, pharmacy, medicine, technology, IT, and more. These experts are not only masters in their technical domains but also possess exceptional language skills, essential for accurate translations.


We prioritize meticulous translation and prompt submission of your complete patent documentation to the Czech and/or Slovak Industrial Property Office (IPO). This essential procedure must be executed within a three-month window from the date your patent grant, or its amendment, is published in the European Patent Bulletin.

Understanding your commitment to innovation, we’ve designed a streamlined validation process to efficiently overcome bureaucratic challenges. With a proven track record of thousands of successful validations in both the Czech and Slovak Republics, we guarantee a smooth and effortless experience for our clients. Our reputation for efficiency, reliability, and unwavering dedication to excellence has earned us the trust of clients worldwide.

Leveraging our expertise in both the Czech and Slovak Republics, we provide top-tier service and deliver significant savings to our clients. Thanks to our extensive experience across both jurisdictions, we effectively reduce costs, time, and administrative burdens, bringing substantial value to those we serve.

For Czechia and Slovakia

We will guide you through the entire process of validating your European patents, specifically:

  • Expertise in EP Validations in both the Czech Republic (Czech IPO) and Slovak Republic (Slovak IPO), with a focus on optimizing submissions through synergies in both jurisdictions.
  • Management of translations of patent documents from English, German, and French into Czech and/or Slovak.
  • Comprehensive compilation and review of all necessary documentation and powers of attorney for EP Validation for each case.
  • A team of over 50 Subject Matter Experts and Translators, specialists in fields including chemistry, genetics, pharmacy, medicine, technology, IT, and more.
  • A complete end-to-end process covering documentation, translation, powers of attorney, filings, and fee payments.
  • Timely delivery of detailed reports and patent documents upon the publication of your patent.
  • Provision of all services associated with the patent, such as revalidation, recording of changes or transfers, and payment of annuities, tailored to client instructions.

How does the service take place?

Order Letter

Based on your instructions, we compile and check all necessary documentation and prepare the Powers of Attorney for submission to the IPO office.

Initiation of the Validation Process

Once we have accessed your European patent text for validation, either received from you or directly downloaded from the office's portal, we assign the document for translation to the most suitable Subject Matter Expert for the specific field and specialization.

Check and IPO Filing

The completed EP Validation documentation undergoes a final detailed check and is subsequently filed to the Czech IPO, along with the signed Power of Attorney. We ensure that the official fees are duly paid and inform you about the submission.

Reporting Progress of the Case

Once the translated European patent is published by the Czech IPO and/or Slovak IPO, we inform you accordingly and send the patent documents directly to you.

Areas in which we provide our services


Evaluating Collaboration: Testimonials

THK Legal is a team of reliable experts who have been taking care of the majority of our trademark portfolio for several years. They assisted us in integrating Vitana and Hamé companies and in establishing Orkla Foods in the Czech Republic and Slovakia. With their advice, they never leave us, even in situations where we intend to leave the territory due to the adverse local legislation. They are with us in the context of our new acquisitions and divestments. I appreciate how they can combine a 'craftsman-like approach' to everyday operations with creativity in non-standard situations (e.g., legal disputes) – and unlike other large firms, their ego still fits through the door! I value that they respect our rapidly changing priorities and adjust their advice and recommendations accordingly.

Mgr. Helena Nováčková Legal Director

The law firm THK LEGAL has been providing our company, SOLO MATCHES & FLAMES, with long-term legal advisory services related to the protection and registration of our trademarks. We receive high-quality service that not only holds significant professional value but also encompasses a human dimension. All our cases and tasks are handled promptly and thoroughly.

Ing. Petr Zelinka Director

THK Legal professionally and meticulously oversees the complete range of trademarks for the ICZ Group in the Czech Republic and worldwide to our full satisfaction.

Petr Kubánek Marketing Manager

We have been collaborating with THK Legal since 1994, and we are highly satisfied with their services. We particularly appreciate their meticulous and professional approach to customer service, and thanks to their expertise and experience in the field of intellectual property law, we feel confident that we are in good hands.

Ing. Marcela Kleinová Inhouse Attorney

We have been collaborating with THK Legal s.r.o. since 2004. We consistently value the professionalism that has assisted us in resolving various disputes. We appreciate the responsiveness and speed of communication, and we believe that these attributes will continue to accompany our collaboration in the years to come.

Radek Sajvera Chairman of the Board and CEO

"I had the honour of collaborating with Ms. Traplova on my authorial projects. I greatly appreciate her professional approach, coupled with her humanity, which made me, as a client without a legal background, always feel like an equal partner—someone whose voice is heard and whose project matters sincerely to Ms. Traplova. Her selfless support for young creators and their activities is admirable, and unlike others, she does not flaunt it overtly; rather, she is a silent philanthropist. For all of this, she has my deep admiration. If you are in search of an expert who can boast precision, reliability, and humanity, I wholeheartedly recommend Ms. Jana Traplova. Jana Červenková, author of guidebooks 'S dětmi v báglu' (With Children in Tow)"

Jana Červenková Brand Owner

We have been cooperating with THK Legal for an extended period, and we are very satisfied with their services. We particularly appreciate their meticulous and professional approach to the customer. Thanks to their knowledge and experience in the field of intellectual property law, we feel confident that we are in good hands.

Petr Kadlec PR Manager

Our collaboration with THK Legal is long-standing and highly satisfactory. We are genuinely pleased with the meticulous and professional manner in which they deliver their services. Their expertise and experience in the field of intellectual property law provide us with the assurance that we are under the care of reliable experts upon whom we can rely.

Lucie Petružálková Managing Director and Executive Director

Our collaboration with THK Legal, a law firm, is long-standing and highly positive. We particularly value their extensive knowledge and rich experience in the field of intellectual property, which is complemented by their professional approach. They consistently handle our requests promptly, ensuring quality and presenting results in an understandable manner. In this domain, they are a dependable partner for us.

David Ševčík Head of Brand & PR
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