Canadian patent licensing firm WiLAN Inc
Judge (John) Ward's ruling resolves ambiguity regarding the patent in ways that WiLAN considers very favorable, the company said in a statement.
WiLAN said the PTO also allowed over 100 new claims in the 759 patent, which covers communication protocols key to wireless transmissions.
The patent does not expire till August 2021.
Shares of the Ottawa, Ontario-based company were down 3.5 percent at C$6.52 in mid-day trade on Thursday on the Toronto Stock Exchange.
(Reporting by Abhiram Nandakumar in Bangalore; Editing by Joyjeet Das)