CRRC Meishan Co. Ltd. et al. vs. Howmet Aerospace Inc.

Explore the PTAB proceeding IPR2026-00268 filed by CRRC Meishan Co. Ltd. et al. on 2026-02-20. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00268

Filing Date

2026-02-20

Accorded Filing Date

2026-02-20

Institution Decision Date

2026-08-13

Last Modified Date

2026-09-15

Proceeding Type

IPR

Termination Date

2026-08-13

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

CRRC Meishan Co. Ltd. et al.

Represented By

Morton, Cyet al

Patent Owner / Respondent

Howmet Aerospace Inc.

Represented By

Briggs, Heathet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 3600 - Transportation, E-Commerce & Construction

Patent Information

1 Patent Involved

Respondent Application Number 17423980

Respondent Patent Number 11885358

External Links

Espacenet

Google Patents

Respondent Inventor Robert B. Wilcox et al

Respondent Tech Center TC 3600 - Transportation, E-Commerce & Construction

Address and Attorney/Agent Information

15 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name HOWMET AEROSPACE INC. - C/O GREENBERG TRAURIG, LLP

Customer Number 8840

Address 500 CAMPUS DRIVE, SUITE 400, FLORHAM PARK, NJ, 07932, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
32938	Barry Schindler	973-443-3289
33044	John Wahl	303-685-7460
36842	Gayle Strong	303-572-6500
47131	Frederic Tenney	412-553-2718
50686	Jeffrey Dunning	312-456-6612
51191	Joseph Agostino	973-443-3572
54919	Heath Briggs	303-572-6500
55000	Lennie Bersh	973-360-7900
55486	Cameron Nelson	312-456-6590
56940	Julie Bookbinder	212-801-6948
57199	Christopher Wickstrom	801-478-6900
63858	Mark Chretien	713-374-3528
66889	Joshua Herman	973-443-3231
71552	Ryan Sharp	612-259-9738
81789	Declan Stone-Murphy	303-710-5935

Proceeding Documents

3105

Email Correspondence Exhibit

2026-09-14 FILING PARTY: BOARD

Download

Patent Owner's Updated Mandatory Notices NOTICE

2026-09-08 FILING PARTY: PATENT OWNER

Download

Director Discretionary Decision: Deny RESPONSE

2026-08-13 FILING PARTY: BOARD

Download

Petitioner's Motion to Seal OTHER

2026-07-23 FILING PARTY: PETITIONER

Download

Petitioner's REDACTED Sur-Reply to PO's Reply ISO Request for Discretionary Denial OTHER

2026-07-23 FILING PARTY: PETITIONER

Download

CRRC Meishan Co. Ltd. et al. vs. Howmet Aerospace Inc.

Proceeding Overview

Parties & Counsel

Petitioner

CRRC Meishan Co. Ltd. et al.

Represented By

Patent Owner / Respondent

Howmet Aerospace Inc.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Email Correspondence Exhibit

Patent Owner's Updated Mandatory Notices NOTICE

Director Discretionary Decision: Deny RESPONSE

Petitioner's Motion to Seal OTHER

Petitioner's REDACTED Sur-Reply to PO's Reply ISO Request for Discretionary Denial OTHER

Patent Owner's Motion to Seal Confidential Version of Patent Owner's Reply to Patent Owner's Request for Discretionary Denial of Institution MOTION

Patent Owner's Reply to Patent Owner's Request for Discretionary Denial of Institution [PUBLIC] OTHER

Email Correspondence Exhibit

REDACTED - Petitioner's Opposition to Patent Owner's Request for Discretionary Denial RESPONSE

Exhibit 1037 Exhibit

Exhibit 1035 Exhibit

Patent Owner's Preliminary Response POPR

Exhibit 1036 Exhibit

Petitioner's Motion to Seal MOTION

Exhibit 1034 Exhibit

Petitioner's Offered Stipulation OTHER

Exhibit 1033 Exhibit

Patent Owner's Motion to Seal Request for Discretionary Denial of Institution and Exhibit 2006 MOTION

EX2007 - SASAC About Us Exhibit

Patent Owner's Request for Discretionary Denial of Institution [PUBLIC] RESPONSE

EX2008 - Wikipedia - State-owned Assets Supervision and Admi.. Exhibit

Email Correspondence Exhibit

Order: Granting-in-part Patent Owner's Motion for Additional Discovery ORDER

Email Correspondence Exhibit

Petitioner's Opposition to Patent Owner's Mtn for Additional Discovery OPPOSITION

Petitioner's Motion to Seal Opposition MOTION

EX2005 - Delaware Litigation - Exhibit C-1 Exhibit

EX2003 - CRRC 2024 Annual Report Exhibit

Patent Owner's Motion to Seal and Request for Entry of Default Protective Order MOTION

EX2001 - CRRC - Madeinmeishan website Exhibit

EX2002 - CRRC Corporation _ World Benchmarking Alliance Exhibit

Patent Owner's Motion for Additional Discovery Under 37 C.F.R. Sect. 42.51(b)(2) [PUBLIC] MOTION

Email Correspondence Exhibit

Notice: Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Notice: Notice filing date accorded NOTICE

Ex. 1003 - 11,885,358 File History Exhibit

Ex. 1020 - inconel-alloy-718 Exhibit

Ex. 1017 - The Ultimate Guide to Tungsten Fasteners_ Durable Solutions Exhibit

Ex. 1021 - US 4921384 (Nordyke 1) Exhibit

Ex. 1011 - WayBack - Mina Ching Declaration Exhibit

Ex. 1025 - Excerpt - Shigleys_3rd_Section24_1 Exhibit

Ex. 1002 - Claim Listing Exhibit

Ex. 1026 - ASME B18 Exhibit

Ex. 1024 - ___h__h_o_howmet_bv17_bv13_flyer Exhibit

Ex. 1023 - US 6241443 (Corbett 2001) Exhibit

Ex. 1029 - NASM21250_2013 Exhibit

Ex. 1008 - Hurd - US3820297A Exhibit

Ex. 1018 - Aerospace Fasteners - NAS Screws Exhibit

Ex. 1009 - Sadri - US5178502 Exhibit

Petition: as filed PETITION

Ex. 1010 - Bobtail Exhibit

Notice: Power of Attorney NOTICE

Ex. 1015 - 20140271024A1 (Jones) Exhibit

Ex. 1004 - FINAL Klopp Expert Declaration Exhibit

Ex. 1007 - Corbett 1981 - US4299519 Exhibit

Ex. 1005 - Klopp CV and Testimony Exhibit

Ex. 1022 - US 5213460 (Nordyke II) Exhibit

Ex. 1001 - US 11885358 - 358 Patent Exhibit

Ex. 1027 - NAS1728 Exhibit

Ex. 1013 - Howmet v. Stanley Complaint Exhibit

Ex. 1012 - Huck Bom-Brochure Exhibit

Ex. 1028 - SAE J429-2014 Exhibit

Ex. 1014 - Docket Report - Howmet v. Stanley (25-cv-01335 DDE) Exhibit

Ex. 1006 - Corbett 2018 - US20180111184A1 Exhibit

Ex. 1024 - _hh_o_howmet_bv17_bv13_flyer Exhibit