Inter Partes Review (IPR)

Inter Partes Review: Challenging Patent Validity Through PTAB

Inter Partes Review (IPR) is a PTAB proceeding that provides a pathway to challenge the validity of existing patent claims based on prior art. IPR allows third parties to file petitions within the PTAB to review and potentially invalidate patents, serving as a cost-effective alternative to lengthy patent litigation. Collier Legal represents clients in IPR proceedings, from petition preparation through to final decisions, ensuring that each argument is backed by a solid understanding of patent law.

During an IPR, we analyze the patent’s claims and identify prior art that may render the claims unpatentable. We assist with drafting detailed petitions, responding to oppositions, and, when necessary, representing clients during PTAB oral hearings. Our strategic approach is grounded in a deep understanding of patent prosecution and the nuances of prior art application.

IPR differs from Post-Grant Review because IPR is limited to prior art issues, and PGR is not. IPR differs from Ex Parte Reexam because Ex Parte Reexam can be filed anytime, but does not allow the petitioner to participate.

Common Issues for IPR Proceedings

Prior Art Analysis – Identifying strong prior art to support the challenge.
Claim Construction – Arguing for a claim interpretation favorable to your position.
Amendment Requests – Handling requests to amend claims during IPR.

Our Expertise in IPR Proceedings

Collier Legal’s patent attorneys have extensive experience representing clients in high-stakes IPR cases. We have successfully challenged patents in fields like pharmaceuticals, biotech, and software, often working alongside industry experts to strengthen our case. Our in-depth knowledge of USPTO guidelines and PTAB decisions allows us to build compelling arguments that increase the likelihood of a favorable outcome.

Why Work with Collier Legal for IPR?

Choosing Collier Legal for your IPR proceeding means selecting a team that prioritizes meticulous preparation and thorough legal analysis. We collaborate closely with our clients, offering clear guidance and transparent communication throughout the IPR process. Our proven track record demonstrates our commitment to protecting your interests through strategic, effective representation.

What Sets Us Apart

Awards

Recognized in Best Lawyers: Ones to Watch in America for Patent Litigation.

Reviews

5.0★ Google Rating Across All Locations

Clients consistently rate us 5 stars for responsiveness, clarity, and strategic insight.

Testimonials

“Joe was phenomenal to work with. As a first-time inventor navigating the patent process, I couldn’t have asked for better support. He was fast, efficient, and took the time to ensure my filing not only met requirements, but maximized the value of my invention. He answered every question, offered thoughtful guidance, and delivered a polished, professional specification right on schedule. If you’re looking for someone who knows their stuff and actually gives a damn, Joe’s your guy.”