Patent Challengers Are Retreating to Ex Parte Reexamination – and That Is Mostly Good News for Patent Owners

For more than a decade, the most prevalent way to attack a patent outside of court has been the “inter partes review” (IPR) provided by the America Invents Act in 2012. That is changing quickly. As the USPTO has issued an increasing
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Broad Claims May Broaden the Prior Art – The Federal Circuit Looks to Claim Scope in Applying the Analogous Art Test

Obviousness rejections are among the most, if not the most, frustrating rejections a patent applicant can face. The examiner typically assembles two or three old patents or published patent applications as prior art references, announces that a person of ordinary skill in
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The USPTO’s Revised Guidelines for AI-Assisted Inventions Jeopardize the Validity of Patents Resulting from Heavy AI Involvement

The USPTO’s most recent guidelines (November 2025) concerning AI-assisted inventions may place the validity of patents at risk if the development of the claimed inventions relied heavily on AI tools. The guidelines also pose some perplexing questions about how much AI involvement
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Defending the Patent Case: Using Section 112 Defenses Against Overly Broad Claims

Many, if not most, patent infringement lawsuits involve a patent owner asserting that its claims cover accused products that differ from the specifically described embodiments in the patent at issue. Patent owners typically want their claims construed broadly by the court so that
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