Greg (Cheng-Kang) Hsu
Ex parte reexamination requester·3 ex parte reexams
Greg (Cheng-Kang) Hsu has requested 3 USPTO ex parte reexaminations. It most often challenges patents owned by Nanjing Lopu Technology Co.,Ltd., Murata Manufacturing Co. Ltd., and Darfon Electronics Corp.. 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 (3)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/014,687 | Mar 1, 2021 | 10,629,100 | ARC-SHAPED DISPLAY SCREEN BEING A HYPERBOLOID | Nanjing Lopu Technology Co.,Ltd. | Closed |
| 90/014,000 | Aug 21, 2017 | 9,046,093 | FLUID CONTROL DEVICE | Murata Manufacturing Co. Ltd. | Closed |
| 90/012,750 | Jan 16, 2013 | 6,538,222 | PUSH BUTTON SWITCH APPARATUS AND METHOD OF ASSEMBLING THE SAME | Darfon Electronics Corp. | Closed |
See the full reexam picture for Greg (Cheng-Kang) Hsu
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.