Perkins Coie, LLP
Patent reexamination counsel·15 ex parte reexams
Perkins Coie, LLP has served as patent-owner counsel in 15 USPTO ex parte reexaminations, with 2 currently open. The firm most often represents Ch20 Incorporated, Cleerly Inc., and Anhui Chenguang Electronic Technology Co. Ltd.. 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 (15)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/016,282 | May 14, 2026 | 12,171,606 | SYSTEMS, METHODS, AND DEVICES FOR MEDICAL IMAGE ANALYSIS, DIAGNOSIS, RISK STRATIFICATION, DECISION MAKING AND/OR DISEASE TRACKING | Cleerly Inc. | Open |
| 90/015,637 | Oct 27, 2025 | 11,681,885 | CASH COUNTER WITH INFRARED LIGHT SOURCE FOR SCANNING IMAGING | Anhui Chenguang Electronic Technology Co. Ltd. | Open |
| 90/019,810 | Jan 13, 2025 | 9,814,256 | METHOD FOR PROCESSING CRUSTACEANS TO PRODUCE LOW FLUORIDE/LOW TRIMETHYL AMINE PRODUCTS THEREOF | Rimfrost Technologies As | Closed |
| 90/019,327 | Dec 9, 2023 | 8,482,652 | IMAGING DEVICES WITH COMPONENTS FOR REFLECTING OPTICAL DATA AND ASSOCIATED METHODS OF USE AND MANUFACTURE | Radiant Zemax LLC | Closed |
| 90/015,133 | Oct 12, 2022 | 9,932,165 | VACUUM COOLER | H-E-B, L.P. | Closed |
| 90/015,002 | Apr 11, 2022 | 10,352,540 | LED TUBE LAMP | Jiaxing Super Lighting Electric Appliance Co. Ltd. | Closed |
| 90/013,837 | Oct 19, 2016 | 6,767,470 | METHOD FOR CLEANING AND MAINTAINING WATER DELIVERY SYSTEMS | Ch20 Incorporated | Closed |
| 90/013,789 | Aug 4, 2016 | 8,766,298 | ENCAPSULANT PROFILE FOR LIGHT EMITTING DIODES | Cree Inc. | Closed |
| 90/013,725 | Apr 15, 2016 | 9,070,851 | Wafer-Level Light Emitting Diode Package and Method of Fabricating the Same | Seoul Semiconductor Co. Ltd. | Closed |
| 90/013,686 | Jan 27, 2016 | 8,747,173 | FLOTATION DEVICE | Hickory Springs Manufacturing Company | Closed |
| 90/013,172 | Mar 6, 2014 | 8,477,431 | IMAGE CAPTURING LENS ASSEMBLY | Largan Precision Co. Ltd. | Closed |
| 90/013,123 | Jan 17, 2014 | 6,767,470 | METHOD FOR CLEANING AND MAINTAINING WATER DELIVERY SYSTEMS | Ch20 Incorporated | Closed |
| 90/012,861 | May 6, 2013 | 8,359,207 | METHOD AND APPARATUS FOR GENERATING TOXICOLOGY REPORTS | Ameritox Ltd. | Closed |
| 90/012,686 | Sep 15, 2012 | 5,863,584 | METHOD FOR TREATING PRODUCE AND PROCESS WATER | Ch20 Incorporated | Closed |
| 90/012,124 | Mar 16, 2012 | 5,566,913 | WRIST REST APPARATUS | — | Closed |
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- Lowenstein & Weatherwax, LLP51 reexams · 24 pending
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See the full reexam picture for Perkins Coie, LLP
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