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90/016,219METAL STACK FOR LOCAL INTERCONNECT LAYER6,774,033Open

Status

Reexam - Request Ready for Ex Parte Action

Filed

Apr 29, 2026

Pre-Order Paper

None filed

Last Updated

Sep 28, 2026

Art Unit

3991

Requester

NXP USA, Inc.

Requester Law Firm

Garlick & Markison

Requested By

Third Party

Patent Owner(via USPTO assignment records)

HD Silicon Solutions LLC

Patent Owner Law Firm

Owner hasn't filed yet

Sector (CPC)

HElectrical & Electronic
H01Electrical Components
H01LSemiconductor Devices

USPC

438Semiconductor Device Manufacturing: Process

Reexam History (19 events)

Sep 28, 2026RXFWDXDate Forwarded to Examiner
Jul 24, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
May 5, 2026MRXNReexamination Formalities Notice Mailed
May 5, 2026MRXNReexamination Formalities Notice Mailed
May 5, 2026DOCKCase Docketed to Examiner in GAU
May 5, 2026COMPApplication Is Now Complete
May 4, 2026RXRLFReExam Litigation Found
May 4, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
May 4, 2026RXNREQFDNotice of reexamination request filing date
May 4, 2026RXNREQAUNotice of assignment of reexamination request
May 4, 2026RXLITSRReexam Litigation Search Conducted
May 4, 2026PRXRParalegal Reexam Review Complete
May 4, 2026FTFIFITF set to NO - revise initial setting
Apr 30, 2026RXTTLRPTTitle Report
Apr 29, 2026RXRLFReExam Litigation Found
Apr 29, 2026RXOSUB.RReexamination requested by third party requester
Apr 29, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Apr 29, 2026RXC/SRCertificate of Service
Apr 29, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

IPR2022-00105IPR — Institution Denied

Petitioner

Microchip Technology Inc.

Petition Filed

Nov 4, 2021

Institution

May 9, 2022

Terminated

May 9, 2022

IPR2021-00752IPR — Final Written Decision

Petitioner

Microchip Technology Inc.

Petition Filed

Apr 23, 2021

Institution

Nov 9, 2021

Decision

Mar 17, 2025

Terminated

Nov 7, 2022

Federal Circuit (CAFC)

None found

Terminal Disclaimer

None found

Prosecution History

None found

Maintenance Fees

Grant
Aug 10, 2004
3.5-yr
Feb 10, 2008
7.5-yr
Feb 10, 2012
11.5-yr
Feb 10, 2016
Expiry
Nov 4, 2022

Entity Status

Large Entity

Expires

Nov 4, 2022 (expired)

Assignments

2003200420052006200720082009201020112012201320142015201620172018201920202021FiledDAFNA BEERYMIRA BEN-TZURGORLEY L. LAUKRISHNASWAMY RAMKUMARCALLAHAN CELLULAR L.L.C.CYPRESS SEMICONDUCTOR CORPORATIONSANSOCCA ALANDRO A.B., LLCCALLAHAN CELLULAR L.L.C.INTELLECTUAL VENTURES ASSETS 156 LLCINNOVATIVE SILICON SOLUTIONS, LLCINNOVATIVE SILICON SOLUTIONS, LLCHD SILICON SOLUTIONS LLC
AssignmentReel/Frame: 013460/0336Recorded: Nov 4, 2002

From

DAFNA BEERYInventor
Oct 31, 2002
MIRA BEN-TZURInventor
Oct 31, 2002
GORLEY L. LAUInventor
Oct 31, 2002
KRISHNASWAMY RAMKUMARInventor
Oct 31, 2002
→

To

CYPRESS SEMICONDUCTOR CORPORATION

AssignmentReel/Frame: 025328/0024Recorded: Nov 5, 2010

From

CYPRESS SEMICONDUCTOR CORPORATION
Jul 30, 2010
→

To

SANSOCCA ALANDRO A.B., LLC

MergerReel/Frame: 037406/0037Recorded: Dec 30, 2015

From

SANSOCCA ALANDRO A.B., LLC
Aug 27, 2015
→

To

CALLAHAN CELLULAR L.L.C.

AssignmentReel/Frame: 051550/0682Recorded: Jan 17, 2020

From

CALLAHAN CELLULAR L.L.C.
Dec 16, 2019
→

To

INTELLECTUAL VENTURES ASSETS 156 LLC

Nunc Pro TuncReel/Frame: 052199/0838Recorded: Mar 23, 2020

From

INTELLECTUAL VENTURES ASSETS 156 LLC
Jan 10, 2020
→

To

INNOVATIVE SILICON SOLUTIONS, LLC

AssignmentReel/Frame: 052253/0751Recorded: Mar 28, 2020

From

INTELLECTUAL VENTURES ASSETS 156 LLC
Jan 10, 2020
→

To

INNOVATIVE SILICON SOLUTIONS, LLC

Name ChangeReel/Frame: 054993/0795Recorded: Jan 14, 2021

From

INNOVATIVE SILICON SOLUTIONS LLC
Nov 10, 2020
→

To

HD SILICON SOLUTIONS LLC