Banner & Witcoff, Ltd.
Patent reexamination counsel·34 ex parte reexams
Banner & Witcoff, Ltd. has served as patent-owner counsel in 34 USPTO ex parte reexaminations, with 2 currently open. The firm most often represents Maxell, Ltd., Comcast IP Holdings I, LLC, and Magnolia Medical Technologies. 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
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 34)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/015,341 | Jun 24, 2025 | 12,338,056 | Insulating Device | YETI Coolers, LLC | Closed |
| 90/019,823 | Jan 21, 2025 | 11,529,081 | FLUID CONTROL DEVICES AND METHODS OF USING THE SAME | Magnolia Medical Technologies | Open |
| 90/019,825 | Jan 21, 2025 | 11,653,863 | FLUID CONTROL DEVICES AND METHODS OF USING THE SAME | Magnolia Medical Technologies | Closed |
| 90/019,757 | Dec 6, 2024 | 9,855,002 | SYSTEMS AND METHODS FOR PARENTERALLY PROCURING BODILY-FLUID SAMPLES WITH REDUCED CONTAMINATION | Magnolia Medical Technologies | Closed |
| 90/019,756 | Dec 6, 2024 | 10,052,053 | SYSTEMS AND METHODS FOR PARENTERALLY PROCURING BODILY-FLUID SAMPLES WITH REDUCED CONTAMINATION | Magnolia Medical Technologies | Closed |
| 90/019,177 | Mar 22, 2023 | 10,039,483 | FLUID DIVERSION MECHANISM FOR BODILY-FLUID SAMPLING | Magnolia Medical Technologies, Inc. | Open |
| 90/014,752 | May 24, 2021 | 9,578,943 | HAIR STRAIGHTENING BRUSH | Guy A. Shaked Investments Ltd. | Closed |
| 90/014,678 | Feb 12, 2021 | 7,116,438 | TERMINAL FOR INFORMATION PROCESSING | Maxell, Ltd. | Closed |
| 90/014,673 | Feb 3, 2021 | 6,430,498 | PORTABLE TERMINAL WITH THE FUNCTION OF WALKING NAVIGATION | Maxell, Ltd. | Closed |
| 90/014,662 | Jan 27, 2021 | 6,748,317 | PORTABLE TERMINAL WITH THE FUNCTION OF WALKING NAVIGATION | Maxell, Ltd. | Closed |
| 90/014,661 | Jan 27, 2021 | 6,580,999 | PORTABLE TERMINAL WITH THE FUNCTION OF WALKING NAVIGATION | Maxell, Ltd. | Closed |
| 90/014,651 | Jan 12, 2021 | 10,129,590 | DISPLAY APPARATUS AND VIDEO PROCESSING APPARATUS | Maxell, Ltd. | Closed |
| 90/014,640 | Dec 23, 2020 | 6,580,999 | PORTABLE TERMINAL WITH THE FUNCTION OF WALKING NAVIGATION | Maxell, Ltd. | Closed |
| 90/014,641 | Dec 23, 2020 | 10,176,848 | RECORDING AND REPRODUCING APPARATUS AND METHOD THEREOF | Maxell, Ltd. | Closed |
| 90/014,639 | Dec 23, 2020 | 6,748,317 | PORTABLE TERMINAL WITH THE FUNCTION OF WALKING NAVIGATION | Maxell, Ltd. | Closed |
| 90/014,638 | Dec 23, 2020 | 8,982,086 | INFORMATION PROCESSING APPARATUS | Maxell, Ltd. | Closed |
| 90/014,632 | Dec 18, 2020 | 6,408,193 | CELLULAR TELEPHONE | Maxell, Ltd. | Closed |
| 90/014,631 | Dec 15, 2020 | 7,203,517 | MOBILE COMMUNICATION TERMINAL DEVICE | Maxell, Ltd. | Closed |
| 90/014,628 | Dec 10, 2020 | 8,339,493 | ELECTRIC CAMERA | Maxell, Ltd. | Closed |
| 90/014,412 | Nov 18, 2019 | 8,302,374 | CUT RESIST YARN, A PROCESS FOR PRODUCING THE YARN AND PRODUCTS CONTAINING THE YARN | Avient Protective Materials B.V. | Closed |
| 90/020,121 | Dec 1, 2017 | 8,204,717 | CLOUD COMPUTING AS A BASIS FOR EQUIPMENT HEALTH MONTORING SERVICE | Honeywell International Inc. | Closed |
| 90/013,960 | May 22, 2017 | 6,947,882 | Regionally Time Multiplexed Emulation System | MENTOR GRAPHICS CORPORATION and MENTOR GRAPHICS (HOLDING) LTD. | Closed |
| 90/013,824 | Dec 29, 2016 | 6,240,376 | Method and Apparatus for Gate-Level Simulation of Synthesized Register Transfer Level Designs with Source-Level Debugging | MENTOR GRAPHICS CORPORATION and MENTOR GRAPHICS (HOLDING) LTD. | Closed |
| 90/012,896 | Jun 17, 2013 | 7,915,015 | DIGITAL AMPLIFICATION | The Johns Hopkins University | Closed |
| 90/012,895 | Jun 17, 2013 | 7,824,889 | Digital Amplification | The Johns Hopkins University | Closed |
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See the full reexam picture for Banner & Witcoff, Ltd.
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