The Patent Trial and Appeal Board (PTAB) denied institution of an inter partes review (IPR) brought by Par-Kan Company, LLC against Unverferth Manufacturing Company regarding U.S. Patent No. 8,967,940 (“the ‘940 patent”). ...more
7/28/2025
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Inter Partes Review (IPR) Proceeding ,
Inventions ,
Inventors ,
Obviousness ,
Patent Infringement ,
Patent Invalidity ,
Patent Litigation ,
Patent Trial and Appeal Board ,
Patents ,
Prior Art ,
Testimony ,
USPTO