90/015,783HIGH-EFFICIENCY SOLAR CELL STRUCTURES AND METHODS OF MANUFACTURE9,130,074Open

Status

Determination - Reexamination Ordered

Filed

Dec 15, 2025

Last Updated

Feb 3, 2026

Art Unit

3991

Requester Law Firm

Unknown

Requested By

Third Party

Patent Owner

Tetrasun Inc.

Sector (CPC)

HElectrical & Electronic
H10Semiconductor Devices
H10FInorganic Semiconductor Bodies

USPC

136Batteries: Thermoelectric And Photoelectric

Reexam History (25 events)

Feb 3, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Jan 26, 2026RXC.ADRReexam - Correspondence Address Change for Third Party Requester
Jan 12, 2026MRXNReexamination Formalities Notice Mailed
Jan 12, 2026DOCKCase Docketed to Examiner in GAU
Jan 12, 2026COMPApplication Is Now Complete
Jan 12, 2026MRXNReexamination Formalities Notice Mailed
Jan 11, 2026RXNREQAUNotice of assignment of reexamination request
Jan 11, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Jan 11, 2026FTFIFITF set to NO - revise initial setting
Jan 11, 2026RXNREQFDNotice of reexamination request filing date
Jan 8, 2026PRXRParalegal Reexam Review Complete
Jan 7, 2026RXRLFReExam Litigation Found
Jan 7, 2026RXLITSRReexam Litigation Search Conducted
Dec 20, 2025RXTTLRPTTitle Report
Dec 20, 2025RXC.ADRReexam - Correspondence Address Change for Third Party Requester
Dec 15, 2025BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Dec 15, 2025RXPA..RReexam - Change in Power of Attorney (May Include Associate POA) for Third Party Requester
Dec 15, 2025RXOSUBReceipt of Original Ex Parte Reexam Request
Dec 15, 2025RXC/SRCertificate of Service
Dec 15, 2025WIDSInformation Disclosure Statement (IDS) Filed
Dec 15, 2025RXPA..RReexam - Change in Power of Attorney (May Include Associate POA) for Third Party Requester
Dec 15, 2025RXOSUB.RReexamination requested by third party requester
Dec 15, 2025RXLET.Miscellaneous Incoming Letter
Dec 15, 2025RXIDS.Information Disclosure Statement Filed
Dec 15, 2025WIDSInformation Disclosure Statement (IDS) Filed

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

IPR2025-01432IPRDiscretionary Denial

Petitioner

Canadian Solar (USA) Inc. et al.

Petition Filed

Aug 22, 2025

Institution

Dec 18, 2025

Decision

Dec 18, 2025

Terminated

Dec 18, 2025

IPR2025-01130IPRDiscretionary Denial

Petitioner

JinkoSolar Holding Co., Ltd. et al.

Petition Filed

Jul 18, 2025

Institution

Nov 20, 2025

Decision

Nov 20, 2025

Terminated

Nov 20, 2025

Federal Circuit (CAFC)

None found

Terminal Disclaimer

None found

Prosecution History

None found

Maintenance Fees

Grant
Sep 8, 2015
3.5-yr
Mar 8, 2019
Paid Mar 8, 2019
7.5-yr
Mar 8, 2023
Paid Mar 8, 2023
11.5-yr
Mar 8, 2027
Expiry
Jun 6, 2033

Entity Status

Large Entity

Expires

Jun 6, 2033 (7.2 yr remaining)

Term Adjustment

+569 days (~1.6 yr)

Assignments

20122013201420152016201720182019202020212022202320242025FiledDENIS DECEUSTEROLIVER SCHULTZ-WITTMANNTETRASUN, INC.FIRST SOLAR, INC.JPMORGAN CHASE BANK, N.A.
AssignmentReel/Frame: 027228/0810Recorded: Nov 15, 2011

From

DENIS DECEUSTERInventor
Nov 7, 2011
OLIVER SCHULTZ-WITTMANNInventor
Nov 7, 2011

To

TETRASUN, INC.

AssignmentReel/Frame: 070304/0469Recorded: Feb 24, 2025

From

TETRASUN, INC.
Feb 20, 2025

To

FIRST SOLAR, INC.

OtherReel/Frame: 072887/0601Recorded: Sep 11, 2025

From

FIRST SOLAR INC.
Sep 2, 2025

To

JPMORGAN CHASE BANK, N.A.