Shenzhen Tuozhu Technology Co., Ltd. et al. vs. Stratasys, Inc. et al.

Explore the PTAB proceeding IPR2025-00311 filed by Shenzhen Tuozhu Technology Co., Ltd. et al. on 2024-12-18. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00311

Filing Date

2024-12-18

Accorded Filing Date

2024-12-18

Institution Decision Date

2025-06-18

Last Modified Date

2026-08-25

Proceeding Type

IPR

Termination Date

2026-06-09

Trial Status

Final Written Decision

Parties & Counsel

Petitioner

Shenzhen Tuozhu Technology Co., Ltd. et al.

Represented By

Hawkins, Michaelet al

Patent Owner / Respondent

Stratasys, Inc. et al.

Represented By

Oaks, Brianet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 1700 - Chemical & Materials Engineering

Patent Information

1 Patent Involved

Respondent Application Number 13348896

Respondent Patent Number 8562324

External Links

Espacenet

Google Patents

Respondent Inventor Nathaniel B. Pettis

Respondent Tech Center TC 1700 - Chemical & Materials Engineering

Address and Attorney/Agent Information

17 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name WESTMAN CHAMPLIN & KOEHLER, P.A.

Customer Number 27367

Address 121 South Eighth Street, Suite 1100, Minneapolis, MN, 55402, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
20147	Nickolas Westman	612-334-3222
30214	Zbigniew Sawicki	612-334-3222
30514	James Young	612-330-0495
33172	Hallie Finucane	612-334-3222
34557	David Brush	612-334-3222
34797	Judson Champlin	612-334-3222
36188	Steven Koehler	612-334-3222
38354	John Veldhuis-Kroeze	612-334-3222
39758	Theodore Magee	612-334-3222
39801	Daniel Polglaze	612-330-0482
41885	Brian Kaul	612-334-3222
43589	Mai-Tram Lauer	612-330-0583
45956	Alan Rego	612-852-0612
48774	Peter Ims	408-720-9397
53675	Leanne Farrell	612-334-3222
57907	Austen Zuege	612-330-0585
72345	Amanda Prose	612-334-3222

Proceeding Documents

Order Denying Director Review of Final Written Decision MOTION

2026-08-25 FILING PARTY: BOARD

Download

Petitioner's Opposition to Request for Director Review OTHER

2026-07-17 FILING PARTY: PETITIONER

Download

3101

Email, Subject_IPR2025-00311 Director Review Request Exhibit

2026-07-10 FILING PARTY: BOARD

Download

Patent Owner's Request for Director Review REQUEST

2026-07-09 FILING PARTY: PATENT OWNER

Download

Final Written Decision: Final Written Decision Determining All Challenged Claims Unpatentable 35 U.S.C. sec. 318a FINAL

2026-06-09 FILING PARTY: BOARD

Download

Shenzhen Tuozhu Technology Co., Ltd. et al. vs. Stratasys, Inc. et al.

Proceeding Overview

Parties & Counsel

Petitioner

Shenzhen Tuozhu Technology Co., Ltd. et al.

Represented By

Patent Owner / Respondent

Stratasys, Inc. et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Order Denying Director Review of Final Written Decision MOTION

Petitioner's Opposition to Request for Director Review OTHER

Email, Subject_IPR2025-00311 Director Review Request Exhibit

Patent Owner's Request for Director Review REQUEST

Final Written Decision: Final Written Decision Determining All Challenged Claims Unpatentable 35 U.S.C. sec. 318a FINAL

Other: Hearing transcript OTHER

Patent Owner's Demonstratives Exhibit

Petitioner's Updated Exhibit List NOTICE

Petitioner's Demonstratives Exhibit

Patent Owner's Updated Exhibit List NOTICE

Claim Construction Order Exhibit

Petitioner's Updated Exhibit List NOTICE

ORDER Setting Oral Argument 37 C.F.R. § 42.70 ORDER

Order: ORDER Setting Oral Argument 37 C.F.R. § 42.70 ORDER

Patent Owner's Sur-Reply OTHER

Patent Owner's Request for Oral Argument OTHER

Petitioner's Request for Oral Argument OTHER

Transcript of November 19, 2025 deposition of Dr. Denis R Cormier Exhibit

Definition of dynamic from Dictionary of Computer Science Exhibit

U.S. Patent Pub. No. 20070050634 to Makimoto et al Exhibit

Definition of dynamic from Colins Dictionary Exhibit

U.S. Patent No. 6,748,543 to Vilhuber Exhibit

U.S. Patent Pub. No. 20090070477 to Baum et al Exhibit

Petitioner's Reply to Patent Owner's Response to Petition REPLYTOOPP

Plaintiff's Opening Claim Construction Brief Exhibit

Second Declaration of Dr. Andrew Wolfe Exhibit

U.S. Patent Pub. No. 20100125894 to Yasrebi et al. Exhibit

Definition of dynamic from Dictionary of Science and Technology Exhibit

U.S. Patent Pub. No. 20080162930 to Finney et al Exhibit

Joint Stipulation to Modify Due Dates NOTICE

Petitioner's Notice of Deposition of Dr. Denis R. Cormier NOTICE

General Order: Related Matters Updates ORDER

U.S. Patent No. 7,168,935 to Taminger et al Exhibit

Uriarte, O., What Type of CNC Coolant Should I Use? (Oct. 2022) Exhibit

Patent Owner's Response RESPONSE

Abdul-Ameer, H. et al., Towards Computer Vision Feedback for Enhanced CNC Machining, IEEE (2011) Exhibit

Transcript of Deposition of Dr. Andrew Wolfe Exhibit

Declaration of Dr. Denis Cormier Exhibit

Order Denying Director Review of Institution Decision REHEARING

PATENT OWNER’S NOTICE OF DEPOSITION OF ANDREW WOLFE, PH.D. NOTICE

PATENT OWNER’S UPDATED MANDATORY NOTICES NOTICE

Authorized Response to Director Review Request OTHER

Exhibit 3100 Exhibit

Patent Owner Request for Director Review REQUEST

Petitioner's Updated Exhibit List-June 23, 2025 NOTICE

June 17, 2025 Stipulation Exhibit

Institution Decision: Grant DECISION

Order: Scheduling Order ORDER

Petitioner's Updated Exhibit List NOTICE

April 8, 2025 Sotera Stipulation Exhibit

Minute Entry, Stratasys v. Shenzhen Tuozhu Tech., 2-24-cv-644-JRG (E.D. Tex. Nov. 14, 2014) Exhibit

Transcript of Howard Lutnick Confirmation Hearing Exhibit

Patent Owner's Preliminary Response POPR

United States District Courts — Judicial Caseload Profiles for Eastern District of Texas (Sept. 30, 2024 and Dec. 31, 2024) Exhibit

Protective Order, Stratasys v. Shenzhen Tuozhu Tech., 2-24-cv-644-JRG (E.D. Tex. Dec. 3, 2024) Exhibit

Discovery Order, Stratasys v. Shenzhen Tuozhu Tech., 2-24-cv-644-JRG (E.D. Tex. Dec. 2, 2024) Exhibit

e-Discovery Order, Stratasys v. Shenzhen Tuozhu Tech., 2-24-cv-644-JRG (E.D. Tex. Dec. 19, 2024) Exhibit

DocketNavigator, Judge Rodney Gilstrap Motion Success for Stay Pending IPR and Time to Milestones Exhibit

2025-01-30 BambuLab Invalid_Ineligibility Conts Exhibit

Patent Owner Mandatory Notice NOTICE

Patent Owner Power of Attorney NOTICE

Errata NOTICE

Notice: NOTICE OF FILING DATE ACCORDED TO PETITION AND TIME FOR FILING PATENT OWNER PRELIMINARY RESPONSE NOTICE

EX1018 Petitioner Stip Exhibit

EX1011 Lan_Web-based rapid Exhibit