Monolithic Power Systems, Inc.
Ex parte reexamination requester·4 ex parte reexams
Monolithic Power Systems, Inc. has requested 4 USPTO ex parte reexaminations, with 2 currently open. It most often challenges patents owned by REED SEMICONDUCTOR CORP. and Volterra Semiconductor 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 challenged
Outcome track record
How this requester's challenges resolve: claims confirmed, amended, mixed, or fully canceled.
- Certificate outcome split across every bucket
- Share of challenges that canceled claims
Challenge metrics
Cancellation rate, average pendency, and the open/closed split across every reexam this requester has filed.
- Outcome rate of closed challenges
- Average pendency in months
Examiners & defense counsel
Which examiners decide this requester's challenges, and which firms defend the targeted patents.
- Most frequent examiners
- Top opposing counsel
Recent reexaminations (4)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/016,221 | Apr 30, 2026 | 7,960,955 | POWER SUPPLY DEVICE, ELECTRONIC DEVICE USING THE SAME, AND SEMICONDUCTOR DEVICE | REED SEMICONDUCTOR CORP. | Open |
| 90/016,117 | Apr 1, 2026 | 7,960,955 | POWER SUPPLY DEVICE, ELECTRONIC DEVICE USING THE SAME, AND SEMICONDUCTOR DEVICE | REED SEMICONDUCTOR CORP. | Open |
| 90/019,037 | Nov 24, 2021 | 7,772,955 | METHOD FOR MAKING MAGNETIC COMPONENTS WITH N-PHASE COUPLING, AND RELATED INDUCTOR STRUCTURES | Volterra Semiconductor Corporation | Closed |
| 90/019,029 | Oct 26, 2021 | 7,525,408 | METHOD FOR MAKING MAGNETIC COMPONENTS WITH N-PHASE COUPLING, AND RELATED INDUCTOR STRUCTURES | Volterra Semiconductor Corporation | Closed |
See the full reexam picture for Monolithic Power Systems, Inc.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.