SEG Solar, Inc. et al. vs. Shanghai Jinko Green Energy Enterprise Management Co., LTD. et al.

Explore the PTAB proceeding IPR2026-00230 filed by SEG Solar, Inc. et al. on 2026-02-18. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00230

Filing Date

2026-02-18

Accorded Filing Date

2026-02-18

Institution Decision Date

2026-07-28

Last Modified Date

2026-08-28

Proceeding Type

IPR

Termination Date

2026-07-28

Trial Status

Institution Denied

Parties & Counsel

Petitioner

SEG Solar, Inc. et al.

Represented By

Flannery, Elizabethet al

Patent Owner / Respondent

Shanghai Jinko Green Energy Enterprise Management Co., LTD. et al.

Represented By

BOMBACH, MIGUELet 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 17964190

Respondent Patent Number 11824136

External Links

Espacenet

Google Patents

Respondent Inventor Kun YU et al

Respondent Tech Center TC 1700 - Chemical & Materials Engineering

Address and Attorney/Agent Information

36 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Nixon Peabody LLP - Main - Washington DC

Customer Number 22204

Address 799 Ninth Street, NW, SUITE 500, WASHINGTON, DC, 20001, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
30628	Ronald Eisenstein	617-345-1000
31689	Thomas Pavelko	202-585-8032
34235	David Resnick	617-345-1000
35483	Jeffrey Costellia	202-585-8000
36028	Wayne Tang	312-425-8641
36400	David Crosby	617-345-1000
39618	Daniel Burnham	312-425-8513
41774	John Gatz	312-425-8515
42568	Janet Garetto	312-425-8514
44869	Seth Levy	213-629-6000
45928	Mark Fitzgerald	617-345-1000
48311	Sorinel Cimpoes	312-425-8542
50845	Jennifer Hayes	650-320-7725
56461	Linda Huber	213-629-6000
56814	Harry Lee	213-629-6129
58760	David May	202-585-8000
61212	Matthew Kitces	202-585-8026
62056	Matthew Werber	312-977-4458
62166	Sumiyo Onda	202-585-8000
62744	Elizabeth Baio	312-425-8684
64888	Kevin Gualano	312-425-8526
65691	Jason Kunze	312-425-3973
67300	Bradley Taub	312-425-8563
69338	James Cooke Iii	202-585-8326
69713	George Dandalides	312-577-7000
70163	Juliet Defrancisco	617-345-1382
71959	Nicole Kling	617-345-1000
74272	Idongesit Ebong	312-977-4440
75286	Ilya Mirov	202-585-8007
77750	Ion Moraru	312-977-4467
79349	Allison Strong	872-271-6652
81141	Alissa Young	617-345-1307
81195	Ravinderjit Braich	617-345-1000
81594	Angelo Christopher	312-977-4391
82560	Christian Donovan	415-984-8200
L0603	Ravinderjit Braich	617-345-1000

Proceeding Documents

Notice: NOTICE OF REFUND NOTICE

2026-08-28 FILING PARTY: BOARD

Download

Petitioners' Request for Refund of Post-Institution Fees OTHER

2026-08-27 FILING PARTY: PETITIONER

Download

Institution Decision: Deny DECISION

2026-07-28 FILING PARTY: BOARD

Download

Director Discretionary Decision: Refer RESPONSE

2026-06-12 FILING PARTY: BOARD

Download

1046

EX1046 - Sandbox v. Grit docket sheet Exhibit

2026-05-26 FILING PARTY: PETITIONER

Download

SEG Solar, Inc. et al. vs. Shanghai Jinko Green Energy Enterprise Management Co., LTD. et al.

Proceeding Overview

Parties & Counsel

Petitioner

SEG Solar, Inc. et al.

Represented By

Patent Owner / Respondent

Shanghai Jinko Green Energy Enterprise Management Co., LTD. et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: NOTICE OF REFUND NOTICE

Petitioners' Request for Refund of Post-Institution Fees OTHER

Institution Decision: Deny DECISION

Director Discretionary Decision: Refer RESPONSE

EX1046 - Sandbox v. Grit docket sheet Exhibit

EX1049 - SDTX dist court time to trial stats Exhibit

Opposition to Patent Owner's Request for Discretionary Denial RESPONSE

EX1043 - SDTX-4-20-cv-02624-98 Exhibit

EX1044 - SDTX-4-23-cv-02505-44 Exhibit

EX1051 - Stipulation 05-26-26 Exhibit

EX1042 - SDTX-4-14-cv-00246-119 Exhibit

Petitioners' Second Updated Mandatory Notices NOTICE

EX1050 - KHOU_$200M factory in Houston to create hundreds of new jobs _ khou.com Exhibit

EX1047 - SDTX-3-16-cv-00012-145_Sandbox opposition to stay Exhibit

EX1048 - excerpt from Jinko's Preliminary Infringement Contentions Exhibit

EX1045 - 38 Scheduling Order Exhibit

Patent Owner's Preliminary Response POPR

EX2017-Tan, Boudreau & Reed, Anisotropic Etching of Silicon Exhibit

EX2016-Glunz et al., Silicon-based passivating contacts: The TOPCon route, Prog. Photovolt. Res. Appl. 31:341-359 (2023) Exhibit

EX2014-Declaration of Dr. Miltiadis Hatalis Exhibit

EX2013-Declaration attaching complaint in RG19022089. Exhibit

EX2015-Choi et al., Structural evolution of tunneling oxide passivating contact upon thermal annealing, Sci. Rep. 7:12853 (2017) Exhibit

EX2012 -Solar Power World Online Exhibit

Patent Owners' Updated Exhibit List NOTICE

EX2018-Fields, Ahmad et al., The formation mechanism for printed silver-contacts for silicon solar cells Exhibit

EX2002 - Office Action mailed Apr. 10, 2024, in U.S. Patent Application No. 18/367,235 Exhibit

EX2010 - JinkoSolar (U.S.) Industries Inc., “Jacksonville,” https://jinkosolar.us/jax Exhibit

EX2006 - SunHub, “HJT Vs. TOPCon Solar Panels: Key Differences Explained,” Exhibit

EX2009 - Joint Stipulation of Dismissal, Shanghai Jinko Green Energy Enterprise Management Co. v. Vietnam Sunergy Joint Stock Co., No. 3:24-cv-08828, Dkt. 81 (N.D. Cal.) Exhibit

Patent Owners' Request for Discretionary Denial RESPONSE

EX2005 - Office Action mailed May 12, 2023, in U.S. Patent Application No. 17/964,190 Exhibit

EX2008 - Order, Sandbox Logistics LLC v. Grit Energy Solutions LLC, No. 3:16-CV-012, Dkt. 147 (S.D. Tex. Feb. 23, 2018) (Hanks, J.) Exhibit

EX2011 - JinkoSolar Holding Co., Ltd., First Quarter 2024 Financial Results (Apr. 2024) Exhibit

EX2001 - OA Aug. 19, 2025 US Patent App No. 18/888,868 Exhibit

EX2004 - Office Action mailed June 30, 2023 in U.S. Patent Application No. 18/071,430 Exhibit

EX2007 - Order, Arc Medical Design Ltd. v. Medivators Inc., No. 4:21-CV-929, Dkt. 36 (S.D. Tex. June 24, 2021) (Bennett, J.) Exhibit

EX2003 - Office Action mailed Nov. 13, 2025, in U.S. Patent Application No. 18/132,796 Exhibit

Petitioners' Updated Mandatory Notices NOTICE

EX1041 - Stipulation Exhibit

Petitioners' Updated Exhibit List NOTICE

Notice: Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Notice filing date accorded to Petition NOTICE

EX1040 - [Xie Paper ] 2023-Xie-(S&I) High efficiency CMP for SoCe Exhibit

EX1023 - US11456391 Chang Exhibit

EX1012 - [Basu Paper] The effect of front pyramid heights Exhibit

EX1007 - Part 1 of 2 -136 Patent Parent File History Exhibit

EX1027 - [Le Paper] Mechanisms of Surface and Subsurface Damage of Silicon Exhibit

EX1020 - Part 2 of 2 - Hall-Ellis Declaration with attachments Exhibit

EX1028 - [Li Paper] The Effect of Chemical Polishing Treatment on the Micro Exhibit

EX1022 - US20180277701A1 Lenes Exhibit

Petition for Inter Partes Review of U.S. Patent No. 11,824,136 PETITION

EX1024 - [Kim-1 Paper] Texturing of large area multi-crystalline silicon wa Exhibit

EX1021 - Exhibit 2 of Patent Owner’s Complaint in SDTX-425-cv-05226 Exhibit

EX1009 - [Sakai] JPWO2016129481A1 Sakai Exhibit

EX1010 - CN112635591A Tong Exhibit

EX1003 - Dr. E. Fred Schubert Declaration Exhibit

EX1002 - Dr. E. Fred Schubert-CV Exhibit

EX1016 - [Yu Paper] 2021 - Selective tunnel oxide passivated contact Exhibit

EX1025 - [Papet Paper] Pyramidal texturing of silicon solar cell 2006 Exhibit

EX1020 - Part 1 of 2 - Hall-Ellis Declaration with attachments Exhibit

EX1034 - [Fang] US20200212242A1 Fang Exhibit

EX1011 - TWI589655B Zhang Exhibit

EX1038 - [Rebib Paper] Determination of Optical Properties Exhibit

EX1033 - [Panadyne] Silicon Nitride Technical Data (2026) Exhibit