J&J suffered another blow today as a key Remicade® (infliximab) patent was revoked by US Court of Appeals (Federal Circuit). Upholding the USPTO decision on reexamination of US 6,284,471, the Fed 
The decision essentially makes redundant the pending appeal to the Fed Cir relating to the ‘471 patent in parallel proceedings initiated by Celltrion. Janssen appealed the August 2016 decision of the District Court (Massachusetts CA No 1: 15-cv-10698) which also revoked the ‘471 patent for ODP.
There are several infliximab biosimilar products already available in the US, although uptake has been slow. As previously reported, there is an ongoing dispute between Pfizer (Hospira) and J&J arising from Pfizer’s allegations that J&J’s anticompetitive conduct has improperly prevented biosimilar uptake.
Naomi Pearce
CEO, Executive Lawyer (AU, NZ), Patent Attorney (AU, NZ) & Trade Mark Attorney (AU)
Naomi is the CEO and Founder of Pearce IP, and is one of ANZ’s leading IP practitioners. Naomi is a market leading, strategic, commercially astute, patent lawyer, patent attorney and trade mark attorney, with over 29 years’ experience, and a background in molecular biology/biochemistry.
Ranked in virtually every notable legal directory, highly regarded by peers and clients, Naomi is renowned for her successful and elegant IP/legal strategies focussing on complex/multijurisdictional litigation, global FTO, and strategic advice. Among other awards, Naomi is the 2026 Lexology Client Choice Winner for Patents, the 2024 Lawyers Weekly Women in Law “Executive of the Year”, the 2023 Lawyers Weekly “IP Partner of the Year”, the 2022 Lexology Client Choice Winner for Life Sciences, the 2022 Asia Pacific Women in Business Law “Patent Lawyer of the Year”, and the 2021 Lawyers Weekly Women in Law “Partner of the Year”. Ranked in Chambers Asia Pacific, Chambers Global, IAM Patent 1000, IAM Strategy 300, is a MIP “Patent Star”, and is recognised as a WIPR Leader for patents and trade marks.
Pearce IP is the premier life sciences focussed firm in ANZ. Commencing in 2017. Pearce IP is the 2025 Australasian Lawyer and NZ Lawyer 5-Star Employer of Choice & “Standout Winner” for Inclusion and Culture (<100 employees). In 2021, Pearce IP was the Lawyers Weekly Australian Law Awards IP Team of the Year.