Birch Stewart Kolasch & Birch, LLP
Patent reexamination counsel·17 ex parte reexams
Birch Stewart Kolasch & Birch, LLP has served as patent-owner counsel in 17 USPTO ex parte reexaminations, with 1 currently open. The firm most often represents Biogen Idec MA Inc., Plant Genetic Systems N.V., and Stork Titan B.V.. 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
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 (17)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/015,796 | Dec 19, 2025 | 8,052,307 | LENS AND LIGHT EMITTING APPARATUS HAVING THE SAME | Light Guide Innovations LLC | Open |
| 90/014,428 | Jan 2, 2020 | 9,550,834 | Methods for Preparing Glycan-Hydrolyzed Antibody, and Homogeneous Glycosylated Antibody | The Noguchi Institute | Closed |
| 90/014,277 | Feb 28, 2019 | 9,986,755 | MOULDING | Stork Titan B.V. | Closed |
| 90/014,164 | Jul 12, 2018 | 9,512,587 | GROUND IMPROVEMENT METHOD | Heisei Techno's Co. Ltd. | Closed |
| 90/013,975 | Jun 28, 2017 | 9,512,587 | GROUND IMPROVEMENT METHOD | Heisei Techno's Co. Ltd. | Closed |
| 90/013,892 | Jan 4, 2017 | 8,747,934 | MOULDING | Stork Titan B.V. | Closed |
| 90/013,592 | Sep 22, 2015 | 8,300,863 | HEARING DEVICE AND METHOD FOR A WIRELESS RECEIVING AND/OR SENDING OF DATA | Oticon A/S | Closed |
| 90/013,563 | Aug 7, 2015 | RE44,962 | GENETICALLY ENGINEERED PLANT CELLS AND PLANTS EXHIBITING RESISTANCE TO GLUTAMINE SYNTHETASE INHIBITORS, DNA FRAGMENTS AND RECOMBINANTS FOR USE IN THE PRODUCTION OF SAID CELLS AND PLANTS | Biogen Idec MA Inc. | Closed |
| 90/013,515 | Jun 1, 2015 | RE44,962 | GENETICALLY ENGINEERED PLANT CELLS AND PLANTS EXHIBITING RESISTANCE TO GLUTAMINE SYNTHETASE INHIBITORS, DNA FRAGMENTS AND RECOMBINANTS FOR USE IN THE PRODUCTION OF SAID CELLS AND PLANTS | Biogen Idec MA Inc. | Closed |
| 90/013,449 | Feb 18, 2015 | 5,646,024 | GENETICALLY ENGINEERED PLANT CELLS AND PLANTS EXHIBITING RESISTANCE TO GLUTAMINE SYNTHETASE INHIBITORS, DNA FRAGMENTS AND RECOMBINANTS FOR USE IN THE PRODUCTION OF SAID CELLS AND PLANTS | Plant Genetic Systems N.V. | Closed |
| 90/013,452 | Feb 17, 2015 | 5,561,236 | GENETICALLY ENGINEERED PLANT CELLS AND PLANTS EXHIBITING RESISTANCE TO GLUTAMINE SYNTHETASE INHIBITORS, DNA FRAGMENTS AND RECOMBINANTS FOR USE IN THE PRODUCTION OF SAID CELLS AND PLANTS | Plant Genetic Systems N.V. | Closed |
| 90/013,453 | Feb 17, 2015 | 5,648,477 | GENETICALLY ENGINEERED PLANT CELLS AND PLANTS EXHIBITING RESISTANCE TO GLUTAMINE SYNTHETASE INHIBITORS, DNA FRAGMENTS AND RECOMBINANTS FOR USE IN THE PRODUCTION OF SAID CELLS AND PLANTS | Plant Genetic Systems N.V. | Closed |
| 90/013,394 | Nov 7, 2014 | RE44,962 | GENETICALLY ENGINEERED PLANT CELLS AND PLANTS EXHIBITING RESISTANCE TO GLUTAMINE SYNTHETASE INHIBITORS, DNA FRAGMENTS AND RECOMBINANTS FOR USE IN THE PRODUCTION OF SAID CELLS AND PLANTS | Biogen Idec MA Inc. | Closed |
| 90/013,189 | Mar 25, 2014 | 8,300,863 | HEARING DEVICE AND METHOD FOR A WIRELESS RECEIVING AND/OR SENDING OF DATA | Oticon A/S | Closed |
| 90/012,936 | Jul 31, 2013 | 8,331,993 | MOBILE TERMINAL AND OPERATION CONTROL METHOD THEREOF | LG Electronics Inc. | Closed |
| 90/012,273 | Apr 26, 2012 | 7,702,323 | A WIRELESS CONTROL SYSTEM, CONTROLLING DEVICE, CONTROLLED DEVICES, METHOD OF CONTROLLING DEVICES, CONTROL PROGRAM AND STORAGE MEDIUM READABLE BY COMPUTER FOR STORING THE PROGRAM | Sharp Kabushiki Kaisha | Closed |
| 90/012,187 | Mar 12, 2012 | 8,013,096 | PERFLUOROETHER MOIETY-CONTAINING POLYMER AND A SURFACE TREATING AGENT COMPRISING THE SAME | Shin-Etsu Chemical Co. Ltd. | Closed |
Other reexam law firms
- Knobbe, Martens, Olson & Bear, LLP115 reexams · 24 pending
- Sterne, Kessler, Goldstein & Fox P.L.L.C.105 reexams · 34 pending
- Fish & Richardson, P.C.76 reexams · 17 pending
- Volpe Koenig54 reexams · 29 pending
- Lowenstein & Weatherwax, LLP51 reexams · 24 pending
- Nixon & Vanderhye, P.C.48 reexams · 8 pending
See the full reexam picture for Birch Stewart Kolasch & Birch, LLP
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.