Entegris, Inc. vs. Gudeng Precision Industrial Co., Ltd.

Explore the PTAB proceeding PGR2026-00037 filed by Entegris, Inc. on 2026-03-31. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

PGR2026-00037

Filing Date

2026-03-31

Accorded Filing Date

2026-03-31

Institution Decision Date

2026-09-23

Last Modified Date

2026-10-19

Proceeding Type

PGR

Termination Date

—

Trial Status

Trial Instituted

Parties & Counsel

Petitioner

Entegris, Inc.

Represented By

WILLIAMS, ELIOTet al

Patent Owner / Respondent

Gudeng Precision Industrial Co., Ltd.

Represented By

Gallo, Nicholaset al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 3700 - Mechanical Engineering & Manufacturing

Patent Information

1 Patent Involved

Respondent Application Number 17882703

Respondent Patent Number 12347711

External Links

Espacenet

Google Patents

Respondent Inventor Ming-Chien Chiu et al

Respondent Tech Center TC 3700 - Mechanical Engineering & Manufacturing

Address and Attorney/Agent Information

20 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Troutman Pepper Locke LLP - Attn: IP Docketing

Customer Number 21874

Address P.O. BOX 55874, Boston, MA, 02205, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
29325	Ralph Loren	617-239-0233
32760	Steven Trybus	312-443-0699
35413	Scott Wofsy	203-353-6831
38405	Christopher Capelli	203-353-6881
38876	Peter Fill	212-415-8600
39311	Judy Naamat	203-353-6877
42266	James Armstrong Iv	202-478-7375
42680	James Hwa	202-220-6978
42933	Daniel Nguyen	713-226-1200
45242	Tim Xia	404-870-4698
51615	Nicholas Diceglie Jr	212-912-9207
53475	Michael Pollack	917-579-7241
56757	Peng Zhou	404-870-4688
57044	Joshua Jones	203-353-6870
68078	Fei Du	517-974-1687
72707	Jasmine Zhu	202-339-8692
76586	Chi Yuan Chen	404-870-4606
76872	Lou Yan	404-870-4644
78904	Gabrielle Gelozin	203-353-6888
80631	Emma Bennett	713-226-1549

Proceeding Documents

Patent Owner's Updated Mandatory Notice NOTICE

2026-10-19 FILING PARTY: PATENT OWNER

Download

2001

Declaration of Andrew P. Zappia in Support of Admission Pro Hac Vice Pursuant to 37 CFR 4.10(c)(2) Exhibit

2026-10-19 FILING PARTY: PATENT OWNER

Download

Patent Owner's Notice of Intent to Designate Andrew P. Zappia as Provisionally Recognized PTAB Attorney NOTICE

2026-10-19 FILING PARTY: PATENT OWNER

Download

Patent Owner's Power of Attorney Pursuant to 37 CFR 42.10(b) (Zappia) NOTICE

2026-10-19 FILING PARTY: PATENT OWNER

Download

Patent Owner's Notice of Deposition of Dr. Andrew D. Glew NOTICE

2026-10-15 FILING PARTY: PATENT OWNER

Download

Entegris, Inc. vs. Gudeng Precision Industrial Co., Ltd.

Proceeding Overview

Parties & Counsel

Petitioner

Entegris, Inc. Follow

Represented By

Patent Owner / Respondent

Gudeng Precision Industrial Co., Ltd. Follow

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Patent Owner's Updated Mandatory Notice NOTICE

Declaration of Andrew P. Zappia in Support of Admission Pro Hac Vice Pursuant to 37 CFR 4.10(c)(2) Exhibit

Patent Owner's Notice of Intent to Designate Andrew P. Zappia as Provisionally Recognized PTAB Attorney NOTICE

Patent Owner's Power of Attorney Pursuant to 37 CFR 42.10(b) (Zappia) NOTICE

Patent Owner's Notice of Deposition of Dr. Andrew D. Glew NOTICE

105 FH Exhibit

Panel Change Order ORDER

Patent Owner's Objections to Evidence OTHER

Scheduling Order ORDER

Institution Decision: Grant DECISION

Patent Owner's Preliminary Response Pursuant to 37 C.F.R. §42.207 and 35 U.S.C. §323 POPR

Order Conduct of the Proceeding ORDER

Petitioner's Opposition to PO's Motion for Extension of Time to File Preliminary Response OPPOSITION

Patent Owner's Motion for Extension of Time to File Preliminary Response Pursuant to 37 CFR 42.5 MOTION

Notice: Mandatory Notice NOTICE

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

TWI606534B MT Exhibit

150G_151G Exhibit

datasheet-a300foups Exhibit

US20040004079A1 Exhibit

Glew Declaration Exhibit

US12347711 FH Exhibit

Glew CV Exhibit

TWI606534B Exhibit

391 FH Exhibit

Petition for Post Grant Review of USP 12,347,711: as filed PETITION

63_272282 FH Exhibit

US10347517 Exhibit

Product Summary_June09_UK Exhibit

878 FH Exhibit

US12347711_B2 Exhibit

Notice: Power of Attorney NOTICE

US10923373 Exhibit

US20230128154A1 Exhibit

105 FH Exhibit

SEMI E47.1-1101 Exhibit

17_973309 FH Exhibit

US8783463 Exhibit

US11551957 Exhibit

Track Case Updates

Entegris, Inc.

Gudeng Precision Industrial Co., Ltd.