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Federal Circuit Invalidates “Sterile” Patent Claims
October 16th, 2025
The Federal Circuit has affirmed decisions by the Patent Trial and Appeal Board (PTAB or Board) invalidating all challenged claims of two patents for a sterilized chlorhexidine product in an applicator package for disinfecting skin. The Federal Circu…
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Federal Circuit: Body Weight Limitations Are Obvious
August 8th, 2025
The Federal Circuit has affirmed a district court’s summary judgment ruling in favor of the US Patent and Trademark Office (USPTO) following a civil action by ImmunoGen seeking to obtain a patent after an unsuccessful ex parte appeal of a patent ap…
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Federal Circuit Says ITC Ruling is Too Narrow
July 30th, 2025
The Federal Circuit has overturned a decision by the International Trade Commission (ITC or Commission) on a polycrystalline diamond compound owned by US Synthetic. The case is US Synthetic Corp. v. International Trade Commission. US Synthetic Corp.…
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Federal Circuit Affirms PTAB Despite Erroneous Claim Construction
July 18th, 2025
The Federal Circuit has found that the Patent Trial and Appeal Board (PTAB or Board) construed patent claims erroneously but that the error was harmless. HD Silicon Solutions LLC (“HDSS”) appealed from a decision of the PTAB holding claims 1–7…
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Senators Re-Introduce RESTORE Patent Rights Act
June 17th, 2025
Senators Chris Coons (D-DE) and Tom Cotton (R-AR) have reintroduced the Realizing Engineering, Science, and Technology Opportunities by Restoring Exclusive (RESTORE) Patent Rights Act. The Act, first introduced in July of 2024, would restore the rebu…
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Federal Circuit Affirms Patent Board Decision for Intel
June 3rd, 2025
In a non-precedential decision, the Federal Circuit affirmed a decision of the Patent Trial and Appeal Board (PTAB or Board) that certain claims of Qualcomm’s U.S. Patent No. 8,838,949 (titled “Direct Scatter Loading of Executable Software Im…
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As AI Patents Surge, USPTO Issues New Guidance
May 12th, 2025
Artificial Intelligence (AI) in general, and generative AI (GAI) – such as ChatGPT- in particular, continue to be very much in the news. As Reuters reported, on January 21, President Donald Trump announced “a private sector investment of up to $5…
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Federal Circuit Affirms that Purdue’s OxyContin Patents are Obvious
May 7th, 2025
The Federal Circuit has affirmed a district court judgment finding that Purdue Pharma’s patent claims to crush-resistant and low-toxicity OxyContin were invalid as obvious. The case involves patents related to Purdue’s formulation of extended-rel…
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Understanding Patent Litigation Funding
April 23rd, 2025
Patents are a form of intellectual property – an asset. However, the value of that asset can be uncertain. As the European Patent Office (EPO) explains, Methods of evaluating patents for business purposes can be divided into quantitative and qualit…
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Federal Circuit Vacates PTAB Decision on Motivation to Combine
April 14th, 2025
The Federal Circuit has vacated and remanded a decision by the Patent Trial and Appeal Board (PTAB or Board), finding that Palo Alto Networks failed to establish that certain claims of Centripetal Networks patents were unpatentable as obvious. The co…
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