Celanese v. ITC: Can a Secret Manufacturing Process Be Patented After Sale of the Resulting Product?
Patently-O
MARCH 4, 2024
by Dennis Crouch The Federal Circuit held oral arguments on March 4, 2024 in the important patent case of Celanese Int’l. The question: Under the AIA, does sale of a product by the patent applicant prohibit the patentee from later patenting the process used to make the product? v ITC , 22-1827 (Fed.
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