Patent Law Practice Center

Sony Attack On Walker Digital Patent Among Reexamination Requests for Week of 9/26/11

Here is the latest installment of Reexamination Requests from Scott Daniels, of Reexamination Alert and Practice Center Contributor…

Earlier this year Walker Digital (of Priceline.com fame) sued Sony and others for infringement a patent claiming an apparatus for providing information to a customer about a video program.  Sony has now replied to that suit by requesting reexamination of theWalker patent (see ex parte Request No. (10)).

Reexamination was also requested for three more Round Rock Research patents, related to different technologies (see ex parteRequest Nos. (2), (3) & (4)).  Round Rock bought the three patents from Micron.  It is not yet clear who has filed these reexamination requests for patents not involved in litigation. (more…)

Attack On Jay Walker Patent Among The Reexamination Requests Filed Week Of 7/11/11

Here is the latest installment of Reexamination Requests from Scott Daniels, of Reexamination Alert and Practice Center Contributor…

Walker Digital filed two complaints in April, accusing a who’s-who of video and electronics companies of infringing its U.S. Patent No. 6,263,505 related to data for video programs.  Jay Walker ofPriceline fame is on the named inventors on the ‘505 patent.  A so-far unnamed party has now requested reexamination of Walker’s ‘505 patent (see ex parte Request No. (10).

A second reexamination request was filed by Thermo Fisher Scientific against Spectros’ U.S. Patent No. 6,711,426 for white LED medical spectroscopy equipment (see inter partes Request No. (5)).  The ‘426 patent emerged from its first reexamination earlier this year, with some of the claims being canceled and some confirmed.  The two companies are involved in an infringement action regarding the ‘426 patent in the Northern District of California, where  Judge Sandra Brown recently allowed Spectros to add claim 19, one of the confirmed claims, to the case.

The following inter partes requests were filed:

(1)         95/001,682 (electronically filed) – U.S. Patent No. 6,502,135 entitled AGILE NETWORK PROTOCOL FOR SECURE COMMUNICATIONS WITH ASSURED SYSTEM AVAILABILITY and owned by VirnetX.  Filed July 11, 2011.  The ‘135 patent is currently the subject of a litigation styled VirnetX v. Cisco (Case No. 6:10-cv-417 (E.D. Tex.)). (more…)