JinkoSolar Holding Co., Ltd. et al. vs. First Solar, Inc.

Explore the PTAB proceeding IPR2025-01130 filed by JinkoSolar Holding Co., Ltd. et al. on 2025-07-18. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01130

Filing Date

2025-07-18

Accorded Filing Date

2025-07-18

Institution Decision Date

2025-11-20

Last Modified Date

2025-12-23

Proceeding Type

IPR

Termination Date

2025-11-20

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

JinkoSolar Holding Co., Ltd. et al.

Represented By

Weidenfeller, Scottet al

Patent Owner / Respondent

First Solar, Inc.

Represented By

Goswami, Sharonmoyeeet 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 13265462

Respondent Patent Number 9130074

External Links

Espacenet

Google Patents

Respondent Inventor Oliver Schultz-Wittmann et al

Respondent Tech Center TC 1700 - Chemical & Materials Engineering

Address and Attorney/Agent Information

86 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name HESLIN ROTHENBERG FARLEY & MESITI PC

Customer Number 23405

Address 5 COLUMBIA CIRCLE, ALBANY, NY, 12203, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
31359	William Geary Iii	617-348-3046
38898	Edward Grieff	858-314-1898
39586	Kevin Ainsworth	212-692-6745
41832	Fred Hernandez	858-314-1518
42523	Farshad Far-Hadian	858-314-2144
43858	Mark Pino	202-434-7332
44238	Lisa Adams	617-348-3054
44338	Andrew Skale	858-314-1500
45517	Antony Novom	858-500-7321
45895	Pedro Suarez	858-314-1500
46393	Jiewen Davis	713-374-1692
46725	Richard Gervase	212-692-6755
47081	Terri Shieh-Newton	415-432-6084
47106	Christina Sperry	617-348-3018
50498	Irina Britva	858-314-1142
51700	Lawrence Frank	617-348-1879
51846	Kenneth Jenkins	858-314-1082
52051	Marc Morley	858-314-1500
52235	Peter Snell	212-935-3000
52301	Alexander Trimble	415-432-6018
52315	Michael Van Loy	858-314-1500
55055	Yahua Chen	617-348-1602
57917	J. Farmer	617-348-3048
58481	Peter Cuomo	617-348-1854
60071	David Dang	(920) 721-7339
61022	Brad Scheller	212-935-3000
62653	Frank Gerratana	617-348-4878
63259	Elissa Kingsland	617-348-1701
63330	Claudia Hetzer-Egger	858-314-1489
63547	Monique Macek	858-314-1500
63616	Suparna Datta	617-348-4405
65576	Edmund Koundakjian	858-350-2250
67686	Lei Xu	781-674-4472
67872	Natalie Schiller	858-314-1547
68142	Melissa Brayman	858-314-1500
68783	Carolina Save	617-348-1872
68836	Daniel Weinger	617-348-1629
68981	Eunice Chan	202-824-3128
69018	Vishak Ganesh	509-321-6428
69361	Kevin Amendt	617-348-4863
71181	William Allison Iii	617-348-1832
71250	Roy Hom	415-432-6000
71592	James Whittle	617-348-1898
73304	Gregory Dolan	415-432-6096
73736	Amritaa Ganguly	215-656-2416
74236	Peter Hecker	858-350-2321
74460	Serge Banini	617-937-2435
74767	Christine Pemberton	617-937-2403
74798	Qi Zhang	603-369-8683
75306	Nicholas Mouton	858-314-1500
75559	Katherine Jensen	617-348-3049
75602	Sherwin Chan	617-348-3037
75671	Lee Johnson	858-344-1785
75772	Alexander Roan	617-348-4466
75822	Mark Hammond	858-314-1086
75844	Peter Amos	206-883-2587
75972	Nicholas Eadie	617-348-1618
75998	Sophia Petrichenko	469-337-0510
76636	David Lundgren	858-314-1500
76705	Yuwei Chen	608-469-0879
77191	Dylan Casler	862-596-7877
77321	Doris Lee	858-314-1545
77492	Jason Stegall	806-236-9451
77818	Stephen Lam	647-499-0472
78048	Neil Supnekar	650-849-3428
78289	Nicholas Foster	617-348-1728
78337	Katharina Stengel	510-982-6030
78784	Eunha Kim	415-432-6000
79171	Arthur Huang	508-768-5357
79550	Sam Rappaport	970-445-0083
800087	Mingyue Bao	310-586-3200
80098	Gabrielle Hoover	917-224-0829
80349	Cory Massey	858-314-1578
80431	Effie Zhou	650-402-7515
80734	Ryan Rieker	574-309-7393
80753	Iva Rreza	202-434-7422
80854	Peter Mcfadden	520-731-1364
80944	Hye Hyun Ahn	202-434-7300
81036	Kristen Elofson	141-569-65405
81272	Shuo Xing	164-749-90503
81280	Mary Robinson	617-648-4766
81288	William Fiers	161-737-11000
81627	Grace Gong	617-348-4427
81730	Samantha Pilicer	617-310-5213
81822	Iris Cheung	647-499-2679
82898	Zhiheng Chang	617-542-6000

Proceeding Documents

Director Discretionary Decision: Deny RESPONSE

2025-11-20 FILING PARTY: BOARD

Download

Patent Owner Preliminary Response POPR

2025-10-31 FILING PARTY: PATENT OWNER

Download

2022

Exhibit 2022 - Provisional App 60098713 Exhibit

2025-10-31 FILING PARTY: PATENT OWNER

Download

1033

Ex. 1033 U.S. Patent Assignment (Feb. 24, 2025) Exhibit

2025-10-30 FILING PARTY: PETITIONER

Download

1030

Ex. 1030 Trefis, First Solar Makes The Right Move (2016) Exhibit

2025-10-30 FILING PARTY: PETITIONER

Download

JinkoSolar Holding Co., Ltd. et al. vs. First Solar, Inc.

Proceeding Overview

Parties & Counsel

Petitioner

JinkoSolar Holding Co., Ltd. et al.

Represented By

Patent Owner / Respondent

First Solar, Inc.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Director Discretionary Decision: Deny RESPONSE

Patent Owner Preliminary Response POPR

Exhibit 2022 - Provisional App 60098713 Exhibit

Ex. 1033 U.S. Patent Assignment (Feb. 24, 2025) Exhibit

Ex. 1030 Trefis, First Solar Makes The Right Move (2016) Exhibit

Ex. 1032 First Solar Announces Ownership of TOPCon Technology, Businesswire.com (2024) Exhibit

Petitioner Opposition to Request for Discretionary Denial RESPONSE

Ex. 1029 USPTO An Open Letter From America's Innovation Agency (Oct. 17, 2025) Exhibit

Ex. 1035 Groom, A Timeline of Trump's Moves to Dismantle (2025) Exhibit

Ex. 1031 First Solar Shifts Malaysian Production Capacity (July 5, 2016) Exhibit

Ex. 1036 Washington Post, Spring (2025) Exhibit

Ex. 1034 Donald Trump Truth Social Post, Aug. 20, 2025 Exhibit

DECISION Granting Patent Owner’s Motion for Pro Hac Vice Admission of Keith R. Hummel 37 C.F.R. § 42.10 ORDER

Ex. 2014 - Progress in Photovoltaics - Silicon-based passivating contacts The TOPCon route Exhibit

Ex. 2011 - Yahoo! Finance - FirstSolar to Buy TetraSun, Gives View Exhibit

Ex. 2013 - EE Power - First Solar to Acquire TetraSun to Expand Addressable Market Opportunity - News Exhibit

Ex. 2019 - CSIS - Protecting Intellectual Property for National Security Exhibit

Ex. 2017 - Global Dossier - CN110634996A Search Exhibit

Ex. 2005 - JinkoSolar - JinkoSolar Announces Fourth Quarter and Full Year 2018 Financial Results Exhibit

Ex. 2012 - Business Wire - First Solar to Acquire TetraSun to Expand Addressable Market Opportunity Exhibit

Ex. 2009 - JinkoSolar - JinkoSolar's 182 mm TOPCon Module Reaches Highest Conversion Efficiency Exhibit

Ex. 2007 - PV Magazine - Jinko claims 24.79% efficiency for n-type monocrystalline cell Exhibit

Ex. 2020 - District Court Scheduling Order Exhibit

Ex. 2010 - China Chamber of Commerce Post-Conference Brief ITC 701-TA-511 Exhibit

Ex. 2021 - JinkoSolar Answer and Counterclaims Exhibit

Ex. 2003 - JinkoSolar - TOPCon Technology Exhibit

Ex. 2008 - PV Magazine - Life after PERC Exhibit

Patent Owner's Request for Discretionary Denial RESPONSE

Ex. 2018 - USTR 2025 Special 301 Report Exhibit

Ex. 2015 - Espacenet – CN110634996A Cited Documents Exhibit

Ex. 2004 - Taiyang News - PERC Solar Cell Technology 2016 Exhibit

Ex. 2016 - Espacenet – 074 Patent Family Exhibit

Ex. 2006 - PV Magazine - TOPCon The next big thing after PERC Exhibit

Declaration of Keith R. Hummel in Support of PHV Motion Exhibit

Keith R. Hummel Biography Exhibit

Motion for PHV Admission of Keith R. Hummel MOTION

Notice: Power of Attorney NOTICE

Notice: Mandatory Notice NOTICE

Notice: Notice filing date accorded NOTICE

Petitioner's Power of Attorney NOTICE

Ex. 1023 Green, Crystalline Silicon Solar Cell Exhibit

Ex. 1004 Certified Translation of JP1992245683A (Tamura) Exhibit

Ex. 1014 Smith, The Optical Properties of Metallic Aluminum Exhibit

Ex. 1009 Gan and Swanson, Polysilicon Emitters Exhibit

Ex. 1021 Fuhs, Amorphous Hydrogenated Silicon Exhibit

Ex. 1007 U.S. Patent Application 20100240172 (Rana) Exhibit

Ex. 1002 File History For U.S. Patent 9,130,074 Exhibit

Ex. 1019 Shah, Photovoltaic Techn. The Case for Thin-Film Solar Cells Exhibit

Ex. 1013 Bravman, Structure and Morphology of Polycrystalline Exhibit

Ex. 1012 Wolstenholme, An Investigation of The Thermal Stability Exhibit

Ex. 1005 JP1992245683A (original) Exhibit

Ex. 1003 Declaration of Dr. Miltiadis Hatalis (074 Patent) Exhibit

Ex. 1010 Y. Kwark, et al, SIPOS Heterojunction Exhibit

Ex. 1025 Markvart, Semiconductor Material Modelling Exhibit

Ex. 1006 P. Borden et al., Polysilicon Tunnel Junctions Exhibit

Ex. 1028 Ponce-Alcantara, Surface passivation Layers for Multicrystalline Exhibit

Ex. 1022 Hatalis, Large Grain Polycrystalline Silicon by Low‐Temperature Exhibit

Ex. 1017 Taguchi, An Approach for the Higher Efficiency Exhibit

Ex. 1024 Neville, Solar Energy Conversion Exhibit

Ex. 1016 Chiou, Antireflective coating for ITO films deposited Exhibit

Petition: as filed PETITION

Ex. 1015 Froitzheim, AmorphousCrystalline Silicon Heterojunction Exhibit

Ex. 1008 U.S. Patent No. 5,057,439 (Swanson) Exhibit

Ex. 1027 Muller, Silicon for Photovoltaics Exhibit

Ex. 1026 Verlinden, High Efficient Concentrator Silicon Solar Cells Exhibit