Protect your patents in Europe - starting from 130€
Transparent, flat-fee pricing, no hidden costs.
European patent post-grant services
After your European patent has been granted, the next step is validation in each member state of the European Patent Convention (EPC) where you want protection. This process can be time-consuming due to administrative tasks and translation requirements in some countries.
With over 60 years of experience and a strong network of patent attorneys across Europe, Dennemeyer delivers efficient, high-quality validation services at scale. Our experienced European Patent Attorneys manage the entire process with precision — ensuring accuracy, transparency, and peace of mind from start to finish.
We can guide you on the best strategy for your needs:
- Pursue classic European Patent Validation (EPV)
- Request a Unitary Patent that covers multiple jurisdictions
-
Adopt a combination of both
Dennemeyer is your one-stop shop for validation in Europe.

- Direct validation in 16 countries
- Global network of law firms offering localized expertise across Europe
- Dedicated patent attorney throughout the process
- Validation in Germany, France, or UK at 130€, or Unitary Patent request from 350€
- Cost efficiency and volume discounts for validations in multiple jurisdictions with our well-established agent network
- Digitalization with our complimentary user-friendly EPV App, simplifying cost estimates and instructions
- Superior translation services for accuracy and quality at every stage
- Seamless integration with other Dennemeyer services for a cohesive experience
- Flexible & integrated process tailored to your needs
Reach out to find our more, contact us »

Swift action and transparent communication
Receive prompt confirmation of your instructions, with power of attorney drafts delivered within 24 hours of order placement. We proactively address procedural questions to avoid delays and simplify your experience. Powered by process efficiency, our turnaround ensures speedy service without sacrificing work excellence.

Client-centric methodology
One size does not fit all, so we customize our approach to ensure smooth interaction, keeping you supported and well-informed at all times. Our commitment is to cater to the specific needs of every client, aiming for a tailored experience in communication, advice, reporting, invoicing and strategy.

Transparent pricing
Our estimates give a clear, detailed cost breakdown with precise, transparent translation costs based on data included in the EP register. Dennemeyer has no hidden fees, so you can plan your IP budget with confidence. Flexible payment options are available, with volume discounts for large portfolios.

High-volume expertise
We have completed an average of over 16,000 national validations annually for the last three years. Our track record extends to opting out more than 47,000 patents and submitting over 300 requests for unitary effect in 2023 alone. Dennemeyer's processes are optimized to prevent bottlenecks in extensive portfolios or validation surges.

Convenient web app
Clients can generate accurate quotations quickly via the Dennemeyer IP Lounge. Our user-friendly web app streamlines your decision-making by offering a seamless way to place orders. The online portal is accessible 24/7, improving the overall efficiency, no matter your location.

Digital solution
A single digital portal to obtain cost estimates and place your orders for unitary effect requests, UPC opt-outs and / or EP validations.

Our experts
Multilingual patent attorneys with the skills and qualifications (litigation certificates) to represent you in all actions before the UPC.

European footprint
Representation in all EPC and UPC jurisdictions directly via our Dennemeyer offices and preferred audited agents.
Online applications act as decision enablers by anticipating what information the user might need. We created our EPV App as part of our IP Lounge digital environment – your single point of entry to all Dennemeyer services. All your subscriptions, tools and insights in one place.
- Easily create cost estimates
- Send orders for requesting unitary effect and/or validating European patents with just a few clicks
- Request for individual opt-out of unitary patent
Bulk opt-out is also available. Our integration with the official UPC API allows us to submit hundreds of opt-out requests on your behalf quickly and securely.