Challenging granted patents: a comparison between Europe and the US

Published October 2021

Challenging granted patents: a comparison between Europe and the US

Event date: 3rd November 2021

HGF and Knobbe Martens are holding a webinar on 3rd November.

Challenging granted patents: a comparison between Europe and the US

In this webinar we will compare and contrast mechanisms for challenging patents in both Europe and the US. In particular, we will focus on opposition proceedings before the European Patent Office (EPO) along with proceedings at the Patent Trial and Appeal Board (PTAB) in the US. Comparisons will be made between each of the jurisdictions illustrated by case studies as examples. Additionally, the panel will provide practical tips on how to maximize the chance of success in each jurisdiction.

This webinar will cover:

  • An outline of the European opposition process and PTAB trials process in the US generally, including inter partes review (IPR) and post-grant review (PGR)
  • Tactical considerations and approach prior to filing an opposition in Europe or a petition for IPR/PGR in the US
  • Discussion of key differences between European and the US invalidity proceedings
  • Practice updates from Europe, including the use of videoconferencing for oral proceedings and changes to the Rules of Procedure at the Boards of Appeal
  • Practice updates from the US, including discretionary denials and the many challenges to the NHK-Fintiv rule, which may block IPRs when co-pending litigation exists
  • Strategy considerations in deciding whether to challenge a U.S. patent versus a European patent.
Speakers

Latest updates

Event - 27th October 2026

HGF sponsors pro-manchester Retail Lunch 2026

HGF is delighted to be sponsoring pro-manchester Retail Lunch 2026, taking place on Tuesday 27 October 2026 at INNSiDE by Meliá in Manchester. As part of the event, HGF Partner …

Event details
Event - 7th - 10th October 2026

HGF Attending AIPPI World Congress 2026

HGF is attending the AIPPI World Congress 2026, taking place in Hamburg from 7-10 October 2026. Bringing together intellectual property professionals from around the world, the annual Congress is one …

Event details
Event - 12th November 2026

HGF to Host Bionow Biotech & Beers Networking Event in Leeds

HGF is pleased to be partnering with Bionow to host the next Biotech & Beers networking event in Leeds on 12 November 2026, bringing together professionals from across the life …

Event details
Event - 18th November 2026

HGF Venture: Funding the Future

Join fellow life sciences founders, investors and business leaders for an evening of drinks and networking in Cambridge on the 18th November, 5-9pm. Featuring an investor-founder round table and an …

Event details
Event - 22nd September 2026

HGF are sponsors of LSPN Europe 2026

HGF is proud to sponsor LSPN Europe 2026, the premier event for IP professionals in the life sciences sector. Join us on September 22-23 in Basel for two days packed …

Event details
Event - 2nd September 2026

IP Clinic for SMEs at ETZ EnergyWorks

If you’re developing a new technology or growing your business, understanding your intellectual property (IP) early can help you protect your innovation, attract investment and avoid costly mistakes. Join HGF …

Event details
Event - 16th September 2026

Basel seminar - New developments in SPCs

VENUE – Der Teufelhof Basel, The Archaeological Cellar Join us on Wednesday 16th September 5:30 – 8:00 pm (CEST) for our seminar on the latest developments in Supplementary Protection Certificates …

Event details
Event - 10th July 2026

IP Clinic for SMEs at ETZ EnergyWorks

If you’re developing a new technology or growing your business, understanding your intellectual property (IP) early can help you protect your innovation, attract investment and avoid costly mistakes. Join HGF …

Event details