I4F Leads Effort in Attempt to Nullify Unilin '460' Patent
Willemstad, Curaçao, May 29, 2019-I4F has announced that it will file 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 Unilin’s U.S. Patent No. 9,200,460.