McCarter & English, LLP
Patent reexamination counsel·7 ex parte reexams
McCarter & English, LLP has served as patent-owner counsel in 7 USPTO ex parte reexaminations. The firm most often represents Cytonome/ST, LLC, THAR INSTRUMENTS, INC., and Kenzinc 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
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 (7)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/014,569 | Nov 19, 2020 | 7,611,309 | Multilayer Hydrodynamic Sheath Flow Structure | Cytonome/ST, LLC | Closed |
| 90/014,562 | Oct 14, 2020 | 7,311,476 | Multilayer Hydrodynamic Sheath Flow Structure | Cytonome/ST, LLC | Closed |
| 90/013,822 | Sep 29, 2016 | 6,648,609 | PUMP AS A PRESSURE SOURCE FOR SUPERCRITICAL FLUID CHROMATOGRAPHY INVOLVING PRESSURE REGULATORS AND A PRECISION ORIFICE | THAR INSTRUMENTS, INC. | Closed |
| 90/013,422 | Jan 5, 2015 | 7,441,676 | DEVICE FOR DISPENSING MEDIA | Kenzinc LLC | Closed |
| 90/013,228 | May 1, 2014 | 8,655,504 | Safety Test Carrier Controlled by External Guidance System | DSD Dr. Steffan Datentechnik Ges.m.b.H | Closed |
| 90/012,955 | Aug 21, 2013 | 6,026,804 | HEATER FOR FLUIDS | Hayward Industries, Inc. | Closed |
| 90/012,919 | Jul 16, 2013 | 6,875,377 | GAMMA RADIATION SOURCE | QSA Global Inc. | Closed |
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- Heim, Payne & Chorush, LLP36 reexams · 28 pending
- Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.34 reexams · 1 pending
- Banner & Witcoff, Ltd.34 reexams · 2 pending
See the full reexam picture for McCarter & English, LLP
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