Patent Opposition & Invalidation


  • represent clients in patent invalidation proceedings in the Polish and European Patent Office & in administrative courts
  • combine law & science by bringing together technical patent attorneys and skilled attorneys which permits us to navigate both substantive and procedural aspects of proceedings
  • Have acted in several breakthrough cases, including in the Supreme Administrative Court, on points of law as evidence preclusion, state-of-art, or problem-solution approaches
  • monitor jurisprudence of the Polish Patent Office on an ongoing basis
  • are experienced in multinational innovative and generic patent disputes and formulate strategies that take into account developments in other jurisdictions

Selected Experience

Our team members have advised, acted for or represented:

  • an international generic pharma company in patent invalidation proceedings re. multiple sclerosis dosage regimen patents
  • an innovative pharma company in several patent invalidation proceedings re. second medical use patents concerning blockbuster drug
  • an innovative pharma company in the Supreme Administrative Court in patent prosecution proceedings re. a medicinal product for cancer treatment
  • a Polish university in patent invalidation proceedings re. a copper purification method
  • a company from the energy sector on opposition proceedings in the EPO re. a patent on fuels
  • a producer of ice rinks in a patent invalidation matter concerning a patent in the area of mechanics
  • for a global producer of industrial minerals in a patent revocation case about a method for obtaining fertilizer
  • for a large pharma company in Supplementary Protection Certificate revocation proceedings