Patent Law Practice Center

Request For Reexamination Of 3M Lithium-Ion Battery Patent Among Those Filed Week Of 7/25/11

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

An unidentified party has sought reexamination of 3M’s U.S. Patent No. 7,078,128 for cathode compositions for lithium-ion batteries (see ex parte Request No. (10)).  The ‘128 patent was the subject of an ITC investigation against Sony and others in 2007, which ended in settlements.  No reexamination has yet been requested against3M’s U.S. Patent No. 6,964,828 that was also in the ITC’s investigation.

In March Google requested reexamination U.S. Patent No. 6,981,040 in response to an infringement allegation by the ‘040 patentee, Personalized User Model (PUM).  Now, Google has requested reexamination of U.S. Patent No. 7,685,276 (see inter partes Request No. 3), the other PUM patent-in-suit.

Requests were also filed against three Hewlett-Packard patents for circuits and switches (see ex parte Request Nos. (11), (12) & (13)). (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…)