Maschoff Brennan
Patent reexamination counsel·9 ex parte reexams
Maschoff Brennan has served as patent-owner counsel in 9 USPTO ex parte reexaminations, with 1 currently open. The firm most often represents CareFusion 303 Inc., International Business Machines Corporation, and Handi Quilter Inc.. 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 (9)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/016,522 | Aug 13, 2026 | 12,415,033 | REAL TIME DRIP CHAMBER MONITOR | CareFusion 303 Inc. | Open |
| 90/016,198 | Jul 24, 2026 | 12,415,033 | REAL TIME DRIP CHAMBER MONITOR | CareFusion 303 Inc. | Closed |
| 90/014,819 | Aug 5, 2021 | 10,982,367 | DUAL-MOTOR SEWING MACHINE WITH AUTOMATIC TIMING ADJUSTMENT | Handi Quilter Inc. | Closed |
| 90/014,747 | May 4, 2021 | 10,363,988 | REAR SUSPENSION SYSTEM FOR BICYCLES | Knolly Bikes Inc. | Closed |
| 90/013,409 | Feb 6, 2015 | 6,701,271 | METHOD AND APPARATUS FOR USING PHYSICAL CHARACTERISTIC DATA COLLECTED FROM TWO OR MORE SUBJECTS | Icon Health & Fitness Inc. | Closed |
| 90/013,350 | Sep 23, 2014 | 6,702,719 | EXERCISE MACHINE | International Business Machines Corporation | Closed |
| 90/013,326 | Aug 28, 2014 | 6,702,719 | EXERCISE MACHINE | International Business Machines Corporation | Closed |
| 90/013,075 | Dec 4, 2013 | 5,720,200 | PERFORMANCE MEASURING FOOTWEAR | — | Closed |
| 90/012,654 | Sep 14, 2012 | 7,749,111 | SYSTEM AND METHOD FOR BONDING AN ACRYLIC SURFACE TO A FRAME | Lifetime Products Inc. | 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 Maschoff Brennan
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.