Samsung Electronics Co., Ltd. et al. vs. Zophonos Inc.

Explore the PTAB proceeding IPR2026-00083 filed by Samsung Electronics Co., Ltd. et al. on 2025-11-03. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00083

Filing Date

2025-11-03

Accorded Filing Date

2025-11-03

Institution Decision Date

2026-03-03

Last Modified Date

2026-04-06

Proceeding Type

IPR

Termination Date

2026-03-03

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Samsung Electronics Co., Ltd. et al.

Represented By

Sharifahmadian, Aliet al

Patent Owner / Respondent

Zophonos Inc.

Represented By

Eisenberg, Jasonet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2600 - Communications

Patent Information

1 Patent Involved

Respondent Application Number 16421141

Respondent Patent Number 10656906

External Links

Espacenet

Google Patents

Respondent Inventor Levaughn Denton

Respondent Tech Center TC 2600 - Communications

Address and Attorney/Agent Information

11 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Gearhart Law LLC

Customer Number 75207

Address 41 River Road, Suite 1A, Summit, NJ, 07901, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
33156	Gordon Belcher	212-628-3785
36145	Richard Gearhart	908-273-0700
50990	Thomas Schroeder	336-714-9997
51464	Michael Berman	609-932-3575
52667	Brian Buchheit	3026569072
54875	Christopher Southgate	478-292-5119
63465	Tiffany Miller	727-608-8066
67547	David Postolski	908-273-0700
67860	James Klobucar	908-273-0700
68611	Elizabeth Gearhart	908-273-0700
72297	Wai-Si Eng	215-520-0296

Proceeding Documents

Notice: refund approved NOTICE

2026-04-06 FILING PARTY: BOARD

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Petitioners' Request for Refund of Post-Institution Fee OTHER

2026-04-02 FILING PARTY: PETITIONER

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Director Discretionary Decision: Deny RESPONSE

2026-03-03 FILING PARTY: BOARD

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1026

Ex. 1026-National Judicial Caseload Profile Exhibit

2026-02-17 FILING PARTY: PETITIONER

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Patent Owner's Preliminary Response POPR

2026-02-17 FILING PARTY: PATENT OWNER

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Samsung Electronics Co., Ltd. et al. vs. Zophonos Inc.

Proceeding Overview

Parties & Counsel

Petitioner

Samsung Electronics Co., Ltd. et al.

Represented By

Patent Owner / Respondent

Zophonos Inc.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: refund approved NOTICE

Petitioners' Request for Refund of Post-Institution Fee OTHER

Director Discretionary Decision: Deny RESPONSE

Ex. 1026-National Judicial Caseload Profile Exhibit

Patent Owner's Preliminary Response POPR

Petitioners' Opposition to Request for Discretionary Denial of Institution RESPONSE

Ex. 1025-Harbor Island Dynamic v Samsung Electronics Co. - Entry 81 Exhibit

Ex. 1024-First Amended Docket Control Order, ED Tex Exhibit

Ex. 1030-Zophonos Infringement Contentions, ED Tex Exhibit

Ex. 1027-Returned Summons for Samsung Electronics America, ED Tex Exhibit

Ex. 1028-Zophonos Complaint, ED Tex Exhibit

Ex. 1029-Zophonos First Amended Complaint, ED Tex Exhibit

EX2005 - Audiogram Interpretation Exhibit

EX2004 - Matthew CV Exhibit

EX2003 - Mathew Declaration Exhibit

Patent Owner's Discretionary Denial Brief RESPONSE

EX2001 - File History of U.S. Application No. 18084081 Exhibit

EX2002 - Samsung's Invalidity Contentions Exhibit

Petitioners' Updated Exhibit List NOTICE

Ex. 1023 - Letter from J. Park to A. Healy Exhibit

Patent Owner's Mandatory Notices NOTICE

Patent Owner's Power of Attorney NOTICE

Notice: Notice filing date accorded NOTICE

Ex. 1016-Excerpts from Microsoft Computer Dictionary Exhibit

Ex. 1020-US20150371643A1 (Ramo) Exhibit

Ex. 1018-Excerpts from The Science of Sound (Rossing) - Part 1 of 2 Exhibit

Ex. 1010-US20080137873A1 (Goldstein873) Exhibit

Petition: as filed PETITION

Notice: Power of Attorney for Samsung Electronics Co., Ltd. NOTICE

Ex. 1002-Kyriakakis Declaration IPR2026-00083 Exhibit

Ex. 1018-Excerpts from The Science of Sound (Rossing) - Part 2 of 2 Exhibit

Notice: Power of Attorney for Samsung Electronics America, Inc. NOTICE

Ex. 1014-US20110058056A1 (Lindahl) Exhibit

Ex. 1022-US7970144 (Avendano) Exhibit

Ex. 1003-Kyriakakis CV Exhibit

Ex. 1012-US20050058181A1 (Lyle) Exhibit

Ex. 1021-US8767970 (Eppolito) Exhibit

Ex. 1001-US Patent 10,656,906 Exhibit

Ex. 1005-US20150195641A1 (DiCenso641) Exhibit

Ex. 1007-US20140337902A1 (Holland) Exhibit

Ex. 1004-US 10,656,906 File History Exhibit

Ex. 1013-Ultrasound Bio. Effects & Indus. Hygiene Concerns (Wiernicki) Exhibit

Ex. 1019-US20130003998A1 (Kirkeby) Exhibit

Ex. 1006-US20140254842A1 (Smith) Exhibit

Ex. 1008-US20080031481A1 (Warren) Exhibit

Ex. 1017-Excerpts from DSP Software Development Techniques (Oshana) Exhibit