ExamPat

Lowenstein & Weatherwax, LLP

Patent reexamination counsel·49 ex parte reexams

Lowenstein & Weatherwax, LLP has served as patent-owner counsel in 49 USPTO ex parte reexaminations, with 23 currently open. The firm most often represents Divx LLC, Uniloc 2017 LLC, and K.Mizra LLC. ExamPat indexes the full prosecution record for each proceeding, including office-action grounds, certificate outcomes, and downstream PTAB and Federal Circuit decisions.

Filings by year

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Top patent owners represented

Outcome track record

How this firm's reexams resolve once a certificate issues: all claims confirmed, amended, mixed, or canceled.

  • Certificate outcome split across every bucket
  • Share of proceedings where claims survived

Practice metrics

Certificate rate, average pendency, and the open/closed split across the firm's full reexam docket.

  • Certificate rate of closed proceedings
  • Average pendency in months

Examiners & adversaries

Which examiners most often decide this firm's reexams, and which requesters most often challenge its patents.

  • Most frequent examiners
  • Top opposing requesters

Recent reexaminations (showing 25 of 49)

Control #FiledPatentTitleOwnerStatus
90/016,284May 14, 20269,198,117Network System With Common Secure Wireless Message Service Serving Multiple Applications on Multiple Wireless DevicesHeadwater Research LLCOpen
90/016,084Mar 24, 202610,331,379Memory Controller For Micro-Threaded Memory OperationsK.Mizra LLCOpen
90/016,087Mar 24, 20268,183,887HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASISK. Mizra LLCOpen
90/016,073Mar 23, 20268,693,556COMMUNICATION CHANNEL CALIBRATION FOR DRIFT CONDITIONSK.Mizra LLCOpen
90/015,994Feb 25, 20269,485,176GLOBAL IP-BASED SERVICE-ORIENTED NETWORK ARCHITECTUREK.Mizra LLCOpen
90/015,989Feb 24, 20269,437,279MEMORY CONTROLLER WITH CLOCK-TO-STROBE SKEW COMPENSATIONK. Mizra LLCOpen
90/015,923Jan 30, 202611,551,743STROBE-OFFSET CONTROL CIRCUITK.Mizra LLCOpen
90/015,849Dec 31, 20259,160,466Periodic Calibration For Communication Channels By Drift TrackingK. Mizra LLCOpen
90/015,844Dec 30, 20259,111,608STROBE-OFFSET CONTROL CIRCUITK.Mizra LLCOpen
90/015,831Dec 24, 20259,615,192MESSAGE LINK SERVER WITH PLURAL MESSAGE DELIVERY TRIGGERSHeadwater Research LLCOpen
90/015,681Nov 13, 20259,749,249PSEUDOWIRE PROTECTION USING A STANDBY PSEUDOWIREK. Mizra LLCOpen
90/015,541Sep 24, 202510,542,303Systems and Methods for Protecting Elementary Bitstreams Incorporating Independently Encoded TilesDivx LLCOpen
90/015,542Sep 24, 202511,245,938Systems and Methods for Protecting Elementary Bitstreams Incorporating Independently Encoded TilesDivx LLCOpen
90/015,530Sep 19, 202511,611,785Systems and Methods for Encoding and Streaming Video Encoded Using a Plurality of Maximum Bitrate LevelsDivx LLCOpen
90/015,469Aug 22, 202511,611,785Systems and Methods for Encoding and Streaming Video Encoded Using a Plurality of Maximum Bitrate LevelsDivx LLCOpen
90/015,468Aug 22, 202510,715,806Systems, Methods, and Media for Transcoding Video DataDivx LLCOpen
90/015,466Aug 22, 202510,412,141Systems and Methods for Seeking Within Multimedia Content During Streaming PlaybackDivx LLCOpen
90/019,968May 21, 20259,215,613WIRELESS END-USER DEVICE WITH DIFFERENTIAL TRAFFIC CONTROL POLICY LIST HAVING LIMITED USER CONTROLHeadwater Research LLCOpen
90/019,963May 15, 20258,782,282Network management systemK. Mizra LLCOpen
90/019,892Mar 31, 20258,589,541DEVICE-ASSISTED SERVICES FOR PROTECTING NETWORK CAPACITYHeadwater Research LLCOpen
90/019,836Jan 31, 20259,338,140SECURE DATA PARSER METHOD AND SYSTEMMark S. O'HareOpen
90/019,753Dec 3, 20249,198,117Network System With Common Secure Wireless Message Service Serving Multiple Applications on Multiple Wireless DevicesHeadwater Partners I LLCOpen
90/019,699Oct 11, 202411,463,768Adaptive Digital Media Content Presentation and Control PlatformPiranha Media Distribution LLCClosed
90/019,458Mar 27, 20247,924,802WIRELESS COMMUNICATION SYSTEMS AND METHODSCobblestone Wireless LLCOpen
90/019,427Feb 22, 20247,586,871PLATFORM AND METHOD FOR PROVIDING DATA SERVICES IN A COMMUNICATION NETWORKOptimorphix Inc.Closed

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