Shenzhen Tuozhu Technology Co., Ltd.
Ex parte reexamination requester·3 ex parte reexams
Shenzhen Tuozhu Technology Co., Ltd. has requested 3 USPTO ex parte reexaminations, with 3 currently open. It most often challenges patents owned by Stratasys, 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 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 |
|---|---|---|---|---|---|
| 90/016,400 | Jun 17, 2026 | 7,555,357 | METHOD FOR BUILDING THREE-DIMENSIONAL OBJECTS WITH EXTRUSION-BASED LAYERED DEPOSITION SYSTEMS | Stratasys, Inc. | Open |
| 90/016,323 | May 20, 2026 | 8,747,097 | NETWORKED THREE-DIMENSIONAL PRINTER WITH THREE-DIMENSIONAL SCANNER | Stratasys, Inc. | Open |
| 90/016,285 | May 14, 2026 | 11,167,464 | TAGGED BUILD MATERIAL FOR THREE-DIMENSIONAL PRINTING | Stratasys, Inc. | Open |
See the full reexam picture for Shenzhen Tuozhu Technology Co., Ltd.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.