Outperforming the Field: Calysta’s Track Record in Patent Opposition and Litigation
Outperforming the Field: Calysta’s Track Record in Patent Opposition and Litigation
At Calysta, we understand that robust intellectual property protection is not just a legal necessity—it’s a strategic asset. Whether you are an SME, a fast-scaling startup, or a multinational enterprise, the strength of your IP portfolio and your ability to defend or challenge patents directly impacts your competitiveness and innovation trajectory.
Over the past five years, Calysta has distinguished itself as a top-performing patent law firm in Europe, achieving success rates that significantly outpace industry averages in both EPO opposition proceedings and European patent litigation. Read below how Calysta has even positioned European oppositions and litigations as a cost-effective alternative to U.S. patent disputes.
Outperforming the Field: Calysta’s Track Record in Patent Opposition and Litigation
At Calysta, we understand that robust intellectual property protection is not just a legal necessity—it’s a strategic asset. Whether you are an SME, a fast-scaling startup, or a multinational enterprise, the strength of your IP portfolio and your ability to defend or challenge patents directly impacts your competitiveness and innovation trajectory.
Over the past five years, Calysta has distinguished itself as a top-performing patent law firm in Europe, achieving success rates that significantly outpace industry averages in both EPO opposition proceedings and European patent litigation. Read below how Calysta has even positioned European oppositions and litigations as a cost-effective alternative to U.S. patent disputes.
These figures reflect our firm’s depth of technical knowledge, procedural experience, and strategic foresight. Oppositions are a cost-efficient legal tool for our clie
nts to challenge third-party patents that pose a threat to their freedom to operate—enabling them to mitigate risk and secure commercial flexibility with relatively low investment.
We position our clients to capitalize on these proceedings—whether to neutralize threats early or to fortify a patent’s standing across jurisdictions.
Proven Success in European Patent Litigation
Even if the risk of patent litigation is often perceived by many of our clients as a burden on their business, enforcing patent rights remains essential for protecting innovation and securing competitive advantage. Whether our clients seek to act against an infringer or are themselves confronted with allegations of infringement, the European litigation system offers a reliable and sophisticated legal framework—both through national courts and, more recently, the Unified Patent Court (UPC).
Over the past five years, Calysta has represented clients in 17 court proceedings, including 6 cases as patent owner, 8 cases as alleged infringer, and 3 court appointments as technical expert.
Our litigation outcomes are exemplary: a 100% success rate in all concluded cases, both in enforcing and defending patent rights. In addition, 10 disputes were resolved pre-judicially, underlining our ability to achieve strong results without necessarily proceeding to full litigation.
At Calysta, we tailor litigation strategies to the commercial context of each case, helping clients leverage jurisdictional strengths to their benefit. With a multilingual team qualified before the UPC, the EPO, and many national offices, we ensure effective support across all major European jurisdictions.
Trusted by Clients, Recognized by the Industry
Our team brings together extensive technical and legal experience. Calysta’s professionals include 6 representatives before the Unified Patent Court (UPC), 10 qualified European patent attorneys, and 10 national patent attorneys with credentials across multiple jurisdictions (in Belgium, Germany, France, Switzerland, Italy, and the UPC). We also count five highly skilled patent engineers and two experts officially appointed by courts. Our attorneys are qualified to represent clients before the EPO and national courts in Belgium, Germany, France, Switzerland, Italy, and the UPC. With full fluency in English, French, German, Italian, and Spanish, we support clients in all technical fields and across language barriers.
Our reputation is built on the trust of clients who rely on us to manage their most critical intellectual property matters as can be seen from our client references below. Calysta has become a long-term partner for innovative SMEs, ambitious startups, and established companies —clients who value not only our legal expertise but also our strategic, commercially focused approach.
We take pride in the long-standing relationships we’ve built with our clients—relationships grounded in competence, transparency, and successful outcomes.
Partner with Calysta
Whether you’re looking to challenge a competitor’s patent through EPO opposition or protect your innovations in court, Calysta is your trusted legal partner. Our track record, expertise, and tailored approach ensure that your IP strategy is both proactive and effective.
Get in touch to learn how we can support your next move in Europe’s complex and evolving IP landscape.
