I4F Files Inter Partes Review with U.S. Patent Office
Willemstad, Curaçao, September 19, 2017—Innovations4Flooring (I4F) has announced that it has filed an inter partes review (IPR) petition at the Patent Trial and Appeal Board (PTAB) in the U.S. Patent and Trademark Office (USPTO) to nullify Välinge’s U.S. Patent No. 7,398,625.