Patent Opposition

Patent Opposition Search Report

A patent can be opposed at the pre-grant or post-grant stage by any third party or interested entity. Additionally, a granted patent may be challenged and invalidated through legal proceedings in court or during patent litigation. ⚖️📝🔍

Our firm Mark IP conducts thorough invalidity searches to support patent oppositions, litigations, and risk assessments with confidence.

🔍 Core Analysis

• Identify directly overlapping prior art that can fully disclose patented claims

• Find technically equivalent prior art (by functionality, purpose, or effect)

• Detect X and Y category references often overlooked by inventors or examiners

📘 Legal & Procedural Review

• Evaluate patent claims, full specifications, and prosecution history (office actions, responses, amendments)

• Analyse pre-grant and post-grant opposition opportunities 

• Review prior art combinations that may render the invention obvious