All Things Newz
Law \ Legal

Celltrion Files IPR Petition On Aflibercept Patent – Patent


To print this article, all you need is to be registered or login on

Last week, Celltrion filed an IPR petition, PTAB IPR2023-00462, seeking cancellation of
claims 1-18 of U.S. Patent No. 10,464,992 (“the ‘992
patent”), assigned to Regeneron Pharmaceuticals, Inc.
According to the Petition, the challenged claims of the ‘992
patent “encompass a formulation comprising the VEGF inhibitor
protein, aflibercept, which Regeneron markets under the trade name
EYLEA®, and three excipients that are commonly used to
stabilize proteins like aflibercept: polysorbate 20, phosphate
buffer, and sucrose.” The Petition sets forth one anticipation
ground and one obviousness ground for the challenged claims.

In its Petition, Celltrion identified Regeneron
Pharmaceuticals, Inc. v. Mylan Pharmaceuticals Inc.
, Case No.
1-22-cv-00061 (N.D.W.V), filed on August 2, 2022, as a related
proceeding. While the ‘992 patent was included in the Complaint against Mylan, it is not one of the
narrowed six patents Regeneron indicated it
will pursue for expedited trial. The ‘992 patent was
challenged in Chengdu Kanghong Biotechnology Co., Ltd. v.
Regeneron Pharmaceuticals, Inc
., IPR2021-00402 (P.T.A.B.),
which the parties voluntarily terminated on June 25, 2021. The
‘992 patent is also currently the subject of an ex
reexamination (Control No. 90/014,448), in which the
requestor has challenged the claims on obviousness-type

The content of this article is intended to provide a general
guide to the subject matter. Specialist advice should be sought
about your specific circumstances.

POPULAR ARTICLES ON: Intellectual Property from United States

Are Ideas Protected By Copyright Law?

Romano Law

If you have a great idea for a new movie, television series or product and you want to pitch it to someone, how can you protect your idea from being stolen?

Trademarks Comparative Guide

Obhan & Associates

Trademarks Comparative Guide for the jurisdiction of India, check out our comparative guides section to compare across multiple countries

Generative AI Generates Infringement Litigation

William Fry

On 17 January 2023, Getty Images announced that it had initiated High Court proceedings in London against Stable Diffusion Limited for copyright infringement. Separately, a class action…

IP Issues With AI Code Generators

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Automated content generation based on large language and image models, also known as generative artificial intelligence (AI), got public attention recently when an AI-generated…


Source link

Related posts

Publicada A Lei Complementar 194/22 Que Reduz A Carga Tributária De ICMS Para Diversos Setores – Tax Authorities

Nursing Homes Beware: The Government Has Increased Its Scrutiny Of Related Parties – Healthcare

It Depends – Should I accept the role of executor? – Wills/ Intestacy/ Estate Planning