Hanley, Flight & Zimmerman, LLC
Patent reexamination counsel·4 ex parte reexams
Hanley, Flight & Zimmerman, LLC has served as patent-owner counsel in 4 USPTO ex parte reexaminations, with 2 currently open. The firm most often represents CKNAPP Sales Inc., Yangtze Memory Technologies Co. Ltd., and Schlumberger Technology Corporation. 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 (4)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/016,440 | Jul 1, 2026 | 12,266,403 | THREE-DIMENSIONAL NAND MEMORY AND FABRICATION METHOD THEREOF | Yangtze Memory Technologies Co. Ltd. | Open |
| 90/016,101 | Mar 30, 2026 | 12,207,730 | HEIGHT ADJUSTABLE ANGLED DESKS | CKNAPP Sales Inc. | Open |
| 90/015,789 | Dec 16, 2025 | 12,207,730 | HEIGHT ADJUSTABLE ANGLED DESKS | CKNAPP Sales Inc. | Closed |
| 90/014,025 | Oct 9, 2017 | 8,400,326 | INSTRUMENTATION OF APPRAISAL WELL FOR TELEMETRY | Schlumberger Technology Corporation | Closed |
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