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University’s Optical Networking Campaign Sees Dueling Suits Over Newly Issued Patent
New Patent Litigation
Ramot at Tel Aviv University Ltd., the “Business Engagement Center” of Tel Aviv University, has kicked off another round in its optical networking dispute with Cisco. The university’s latest complaint (2:22-cv-00168), filed in the Eastern District of Texas on May 24, accuses the company of infringing a single patent, the newest patent to issue in a family already asserted in this campaign, through the provision of networking transceiver modules and line cards as well as “major components of such modules”. That same day, Cisco and subsidiary Acacia Communications filed a declaratory judgment action (1:22-cv-00674) over the same patent in the District of Delaware. Prior cases from both parties remain on the dockets of both courts—with the university’s affirmative infringement actions stayed pending the outcome of ex parte reexaminations that have not gone in its favor so far.
June 1, 2022
Cisco Seeks Declaratory Judgment of Noninfringement of New Optical Networking Patent
New Patent Litigation
On September 28, 2021, the USPTO granted to Ramot at Tel Aviv University Ltd., the “Business Engagement Center” of Tel Aviv University, another patent in a family of nine already, all generally related to converting digital electric data into modulated optical streams. Three of those patents are in litigation against Cisco and Acacia Communications (acquired by Cisco this past March) that has been stayed—one case in the Eastern District of Texas (against Cisco) and the other in the District of Delaware (against Acacia) to await the outcome of a set of ex parte reexams. Both companies have now filed a complaint in Delaware seeking a declaratory judgment of noninfringement of the newly issued patent.
September 28, 2021
University “Engagement Center” Files New Suit in Campaign Halted Elsewhere by a Late-Stage Stay
New Patent Litigation
Just after a January 2021 stay halted its Eastern District of Texas litigation against Cisco, Ramot at Tel Aviv University Ltd., the “Business Engagement Center” of Tel Aviv University, has filed a Delaware suit over two of the same three patents, this time against Acacia Communications (1:21-cv-00295). The patents generally relate to converting digital electric data into modulated optical streams, with Acacia accused of infringement through the provision of certain optical transceiver modules and DSP chips. District Judge Rodney Gilstrap imposed the stay, at the relative eleventh hour ahead of a March 1 trial date, in light of ex parte reexaminations of the patents-in-suit—the first of three recent cases to see action stopped via the same mechanism.
March 10, 2021
Tel Aviv University Takes a Second Run at Cisco with More Recent Patents
New Patent Litigation
Tel Aviv University (Ramot at Tel Aviv University Ltd.) has filed suit against Cisco (2:19-cv-00225) for the second time in the Eastern District of Texas, now asserting two later-issuing family members of patents briefly in suit there in 2014. The patents generally relate to converting digital electric data into modulated optical streams. Cisco is accused of infringement through the provision of fiber-optic networking equipment that allegedly utilizes electro-optical modulation techniques, including various Cisco 100G, 200G, and 400G optical modules.
June 13, 2019