Canadian Solar Inc. et al. vs. Maxeon Solar Pte. Ltd.

Explore the PTAB proceeding IPR2024-01040 filed by Canadian Solar Inc. et al. on 2024-06-24. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2024-01040

Filing Date

2024-06-24

Accorded Filing Date

2024-06-24

Institution Decision Date

2025-01-14

Last Modified Date

2026-03-27

Proceeding Type

IPR

Termination Date

2026-01-12

Trial Status

Final Written Decision

Parties & Counsel

Petitioner

Canadian Solar Inc. et al.

Represented By

Tiu, Samuelet al

Patent Owner / Respondent

Maxeon Solar Pte. Ltd.

Represented By

Snodgrass, Jacobet 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 13495577

Respondent Patent Number 8878053

External Links

Espacenet

Google Patents

Respondent Inventor Peter John COUSINS

Respondent Tech Center TC 1700 - Chemical & Materials Engineering

Address and Attorney/Agent Information

7 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Schmidt Patent Law, Inc.

Customer Number 188295

Address 2635 N. First Street, Suite 150, San Jose, CA, 95134-2000, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
40310	David Alavi	541-686-9462
46484	Signe Holmbeck	408-331-1674
47063	Mark Schmidt	408-331-2329
59276	Marc Robinson	555-555-5555
62083	Herbert Patty	408-886-5109
72360	Jackson Ho	408-331-1671
74527	Alexander Shei	408-228-4524

Proceeding Documents

130

JUDGMENT Final Written Decision Determining All Challenged Claims Unpatentable 35 U.S.C. § 318(a) FINAL

2026-01-12 FILING PARTY: BOARD

Download

Other: Hearing transcript OTHER

2025-12-04 FILING PARTY: BOARD

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2025

Patent Owner's Demonstratives Exhibit

2025-10-09 FILING PARTY: PATENT OWNER

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1103

Petitioner's Demonstratives Exhibit

2025-10-09 FILING PARTY: PETITIONER

Download

Patent Owner's Updated Exhibit List NOTICE

2025-10-09 FILING PARTY: PATENT OWNER

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Canadian Solar Inc. et al. vs. Maxeon Solar Pte. Ltd.

Proceeding Overview

Parties & Counsel

Petitioner

Canadian Solar Inc. et al.

Represented By

Patent Owner / Respondent

Maxeon Solar Pte. Ltd.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

JUDGMENT Final Written Decision Determining All Challenged Claims Unpatentable 35 U.S.C. § 318(a) FINAL

Other: Hearing transcript OTHER

Patent Owner's Demonstratives Exhibit

Petitioner's Demonstratives Exhibit

Patent Owner's Updated Exhibit List NOTICE

Petitioner's Updated Exhibit List NOTICE

General Order: Related Matters Updates ORDER

Order: Setting Oral Argument ORDER

IPR2024-01040 - PO's Request for Oral Argument OTHER

Petitioner's Request for Oral Argument OTHER

Patent Owner Sur-Reply OTHER

Patent Owner's Objections to Evidence OTHER

June 24, 2025 Deposition Transcript of Douglas S. Ruby, Ph.D. Exhibit

Wolf, M. & Rauschenbach, H., “Series Resistance Effects On Solar Cell Measurements,” Advanced Energy Conversion, Vol. 3, pp. 455-479 (1963) Exhibit

Kermani, A. et al., “Single-Wafer Rapid Thermal CVD Technology For Fabrication Of MOS And Bipolar Devices,” in Proceedings Of The Third International Symposium On Ultra Large Scale Integration Science And Technology, 566-573 (1991) Exhibit

Supplemental Declaration of Sanjay Banerjee, Ph.D. in Support of Petitioner’s Reply to Patent Owner’s Response Exhibit

Merabet, A. et. al. “Dopant Redistribution During Rapid Thermal Annealing In A Self-Aligned Polysilicon Emitter Bipolar Structure Compatible With A Complementary Metal-Oxide-Semiconductor Technology,” phys. stat. sol. (a) 145, 77-88 (1994) Exhibit

Petitioner's Reply to Patent Owner's Response REPLYTOOPP

Petitioner's Updated Exhibit List NOTICE

Petitdidier, S. et al., “Growth Mechanism And Characterization Of Chemical Oxide Films Produced In Peroxide Mixtures On Si(100) Surfaces,” Thin Solid Films 476 (2005) 51-58 Exhibit

Petitioner's Notice of Deposition of Douglas Ruby, Ph.D. NOTICE

Panel Change Order ORDER

Patent Owner's Updated Mandatory Notices NOTICE

Order: Granting Motion to Withdraw Counsel ORDER

Maxeon v CSI -- IPR2024-01040 Motion to Withdraw Counsel MOTION

Petitioner's Notice of Objections to Evidence NOTICE

Ex 2024 - IPR2024-01040 re 053 - Foglietti Exhibit

Ex 2021 - IPR2024-01040 re 053 - Ruby CV Exhibit

IPR2024-01040 re 053 - Patent Owner Response RESPONSE

Ex 2023 - IPR2024-01040 re 053 - Banerjee Transcript Exhibit

Ex 2020 - IPR2024-01040 re 053 - Ruby Dec Exhibit

Ex 2022 - IPR2024-01040 re 053 - MKB Declaration Exhibit

Order Granting Petitioner’s Motion to Withdraw Counsel ORDER

Petitioner's Unopposed Motion to Withdraw Joseph A. Micallef as Counsel MOTION

Maxeon_v_CSI-IPR2024-01040_Updated_Power_of_Attorney NOTICE

Maxeon_v_CSI-IPR2024-01040_POs_Notice_of_Depo_of_Banerjee NOTICE

Maxeon_v_CSI-IPR2024-01040_Updated_Mandatory_Notices NOTICE

ORDER Conditionally Granting Patent Owner’s Motions to Withdraw and Substitute Counsel 37 C.F.R. § 42.10 ORDER

Corrected Declaration of Sylvia Hall-Ellis Exhibit

Patent Owner's Unopposed Motion to Withdraw and Substitute Counsel Under 37 C.F.R. 11.116 MOTION

MaxeonSolar_Objections_to_Evidence_053_CS_IPR2024-01040 NOTICE

Patent Owner's Updated Power of Attorney NOTICE

Patent Owner's Updated Mandatory Notices NOTICE

Order: Scheduling Order ORDER

Institution Decision: Grant DECISION

Patent Owner's Preliminary Sur-Reply OTHER

Petitioner's Updated Exhibit List NOTICE

Plaintiff Maxeon Solar PTE. Ltd.’s Disclosure of Asserted Claims and Infringement Contentions Exhibit

E.D. Tex. Patent Rule 3-6 Exhibit

Petitioner's Reply to Patent Owner's Preliminary Response NOTICE

EX2011 - Tsai Exhibit

EX2007 - Order Denying Maxeon Partial Motion to Dismiss Exhibit

EX2006 - Federal Court Management Statistics (June 30, 2024) Exhibit

EX2004 - Docket Navigator Search (Motions to Stay) Exhibit

IPR2024-01040 Patent Owner Preliminary Response POPR

EX2008 - Docket Control Order Exhibit

EX2012 - File History of U.S. Patent No. 8,222,516 Exhibit

EX2003 - Gan-Polysilicon Emitters for Solar Cells-1990 Exhibit

EX2005 - Docket Navigator Search (Non-Stipulated Motions to Stay) Exhibit

EX2013 - File History of U.S. Patent Application No. 17870268 Exhibit

EX2009 - Canadian Solar's Invalidity Contentions (Sept. 6, 2024) Exhibit

EX2010 - Feldman Exhibit

EX2019 - U.S. Patent No. 8,222,516 Exhibit

Patent Owner's Updated Power of Attorney NOTICE

Patent Owner's Updated Mandatory Notices NOTICE