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…)

Verizon Attacks On Two TiVo Time-Shifting Patents Among The Reexamination Requests Filed The Week of 7/18/11

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

In 2009, TiVo sued Verizon and AT&T for infringement of U.S. Patent Nos. 7,493,015 and 7,529,465 related to time-shifting and play-back of media streams.  Verizon has now requested reexamination of the ‘015 and ‘465 patents (see inter partes Request Nos. (7) & (8)).

Precision Biosciences filed for reexamination of Cellectis’ Patent No. 7,842,489 for single-chain endonucleases useful in genetic modifications of various sorts (see ex parte Request No. (7)).  The two companies are engaged in several infringement and declaratory judgment actions in North Carolina and Delaware involving the ‘489 patent and certain related patents.

RIM requested reexamination of Mobile Media Ideas’ Patent No. 5,732,390 (see ex parte Request No. (9)).  Moble Media has sued RIMfor infringement of the ‘390 patent in the Eastern District of Texas.

Medical device patents are the subject of two requests, one for Voda’sU.S. Patent No. 6,475,195 for an angioplasty catheter guide (see inter partes Request No. (5)) and one for Boston Scientific’s U.S. Patent No. 5,922,021 for an intravascular stent (see ex parte Request No. (1)).

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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…)

Cisco Attack On VirnetX On Network Security Patent Among Reexamination Requests Filed Week Of 7/5/11

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

Late Friday, Cisco requested reexamination of VirnetX’s U.S. Patent No. 6,502,135 entitled “Agile network protocol for secure communications with assured system availability” (see inter partesRequest No. (6)).  The two companies are parties to an infringement action over the ‘135 patent in the Eastern District of Texas.

Shell Oil and Alcoa also countered infringement allegations by requesting reexamination of the patents-in-suit (see inter partesRequest Nos. (3) & (4)). (more…)

Thirteen Brocade Patents Among The Targets Of Reexamination Requests Filed Week Of 6/27/11

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

A10 Networks may have set a record last week when it requested reexamination of 13 Brocade patents involving global servers (see ex parte Request Nos. (2)-(3), (5)-(8), (11)-(17)).  The parties are in litigation over those patents in the Northern District of California.

Reexamination was requested against Lambda Optical Systems’ U.S. Patent No. 6,973,229 related to optical network systems (see ex parteRequest No. (9)).  Lambda sued a number of network companies last year for infringement of the ‘229 patent, including Alcatel-Lucent,NEC, Fujitsu and Nokia-Siemens. (more…)