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

Explore the PTAB proceeding IPR2024-01038 filed by Canadian Solar Inc. et al. on 2024-06-25. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2024-01038

Filing Date

2024-06-25

Accorded Filing Date

2024-06-25

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 2800 - Semiconductors, Electrical & Optical Systems

Patent Information

1 Patent Involved

Respondent Application Number 16877255

Respondent Patent Number 11251315

External Links

Espacenet

Google Patents

Respondent Inventor David D. Smith et al

Respondent Tech Center TC 2800 - Semiconductors, Electrical & Optical Systems

Address and Attorney/Agent Information

13 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Schwabe Williamson & Wyatt/Maxeon - PACWEST CENTER, SUITE 1800

Customer Number —

Address 1211 SW FIFTH AVENUE, PORTLAND, OR, 97204, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
35934	Michael Bernadicou	503-222-9981
38329	Stephen Sullivan	503-222-9981
38494	Ralph Hoppin	650-396-1408
42444	Graciela Cowger	360-694-7551
43184	Lance Termes	541-749-4044
45023	Steven Prewitt	503-796-2844
54630	Michael Cofield	503-796-2086
59276	Marc Robinson	555-555-5555
61080	Justin Brask	503-796-2462
62083	Herbert Patty	408-886-5109
68748	Eric Blank	415-715-4519
73446	Xiongying Tu	612-401-2690
79168	Ann Bernert	503-595-5300

Proceeding Documents

155

JUDGMENT Final Written Decision Determining No Challenged Claims Unpatentable 35 U.S.C. § 318(a) FINAL

2026-01-12 FILING PARTY: BOARD

Download

Other: Hearing transcript OTHER

2025-11-14 FILING PARTY: BOARD

Download

Petitioner's Updated Exhibit List NOTICE

2025-10-09 FILING PARTY: PETITIONER

Download

Patent Owner's Updated Exhibit List NOTICE

2025-10-09 FILING PARTY: PATENT OWNER

Download

2040

Patent Owner's Demonstratives Exhibit

2025-10-09 FILING PARTY: PATENT OWNER

Download

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 No Challenged Claims Unpatentable 35 U.S.C. § 318(a) FINAL

Other: Hearing transcript OTHER

Petitioner's Updated Exhibit List NOTICE

Patent Owner's Updated Exhibit List NOTICE

Patent Owner's Demonstratives Exhibit

Petitioner's Demonstratives Exhibit

General Order: Related Matters Updates ORDER

Order: Hearing Order ORDER

Petitioner's Request for Oral Argument OTHER

PO's Request for Oral Argument OTHER

Patent Owner's Sur-Reply OTHER

Petitioner's Updated Exhibit List NOTICE

Petitioner's Reply to Patent Owner's Response REPLYTOOPP

June 18, 2025 Deposition Transcript of David L. Carroll, Ph. D. Exhibit

ORDER Granting Petitioner’s Motion for Pro Hac Vice Admission of Leif E. Peterson, II 37 C.F.R. § 42.10 ORDER

Declaration of Leif E. Peterson, II Exhibit

Petitioner's Updated Exhibit List NOTICE

Petitioner's Motion for Pro Hac Vice Admission of Leif E. Peterson, II MOTION

Petitioner's Notice of Deposition of David L. Carroll, Ph.D. NOTICE

Panel Change Order ORDER

Patent Owner's Updated Mandatory Notices NOTICE

Order: Granting Motion to Withdraw Counsel ORDER

Maxeon v. CSI -- IPR2024-01038, -1194 (Consol) Motion to Withdraw Counsel MOTION

ORDER Granting Petitioner’s Motion to Expunge Supplemental Evidence 37 C.F.R. § 42.5 ORDER

Petitioner's Notice of Objections to Evidence NOTICE

Petitioner's Unopposed Motion to Expunge Supplemental Evidence MOTION

Haarahiltunen, detection limit of Fe Exhibit

Transcript of Banerjee Depo 2025-03-20 Exhibit

Declaration of David Carroll ISO POR Exhibit

Schulz, Interface States at the SiO2-Si Interface Exhibit

Transcript of Banerjee Depo 2025-03-21 Exhibit

Procel, Analysis of the Impact Exhibit

sims detection limits in si Exhibit

Sopori, review of impurities in si Exhibit

Coletti, levels of Fe in Si Exhibit

Desa, Optimization of p-Type Exhibit

Liu, poly sio2 Fe diffusion Exhibit

Aoki, Annealing temps and times for Fe Exhibit

Lamers, Towards 21 Percent Efficient Exhibit

US Patent No 8,790,957 to Li et al Exhibit

Portavoce, Diffusion of Fe with O (2018) Exhibit

Castellanos, CrucibleSilicon Exhibit

Bolin Declaration Exhibit

Hajjiah, Fe concentration study Exhibit

Patent Owner Response RESPONSE

Ziebarth, Fe at grainboundaries of Si Exhibit

Order Granting Petitioner’s Motion to Withdraw Counsel ORDER

Petitioner's Updated Exhibit List NOTICE

Previously EX1023 in IPR2024-01194 – Declaration of Sylvia D. Hall-Ellis Exhibit

Petition for Inter Partes Review of U.S. Patent No. 11,251,315, Paper 1 from IPR2024-01194 OTHER

Previously EX1087 in IPR2024-01194 – Supplemental Declaration of Sanjay Banerjee, Ph.D. Exhibit

Previously EX1003 in IPR2024-01194 – Declaration of Sanjay Banerjee, Ph.D. Exhibit

Joint Notice of Consolidated Exhibits NOTICE

Previously EX1069 in IPR2024-01194 – Patent Trial and Appeal Board Rules of Practice for Briefing Discretionary Denial Issues, and Rules for 325(d) Considerations, Instituting Parallel and Serial Petitions, and Termination Due to Settlement Agreement (Fed. Register, Apr. 19, 2024) Exhibit

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

Patent Owner's Updated Exhibit List NOTICE

Declaration of David Carroll ISO POPR for -01194 Exhibit

Ex. 3001 Attorney Correspondence Exhibit

Order: Consolidation Order ORDER

Patent Owner's Updated POA NOTICE

Patent Owner's Notice of Deposition of Sanjay Banerjee, Ph.D. NOTICE

Patent Owner's Updated Mandatory Notices NOTICE

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

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

Patent Owner's Notice of Objs to Evidence NOTICE