US 8,339,997 K1 (3,789th)
Media based collaboration using mixed-mode PSTN and internet networks
Thomas A. Dye; and Thomas A. Dundon
Assigned to MEETRIX IP, LLC
Trial No. IPR2023-00371, Dec. 16, 2022
Inter Partes Review Certificate for Patent 8,339,997, issued Dec. 25, 2012, Appl. No. 12/646,892, Dec. 23, 2009
Inter Partes Review Certificate issued Oct. 28, 2024