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

Explore the PTAB proceeding IPR2026-00085 filed by Samsung Electronics Co., Ltd. et al. on 2025-11-05. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00085

Filing Date

2025-11-05

Accorded Filing Date

2025-11-05

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 17555813

Respondent Patent Number 11900016

External Links

Espacenet

Google Patents

Respondent Inventor Levaughn Denton

Respondent Tech Center TC 2600 - Communications

Address and Attorney/Agent Information

145 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name STERNE, KESSLER, GOLDSTEIN & FOX P.L.L.C.

Customer Number 26111

Address 1101 K Street, NW, 10th Floor, WASHINGTON, DC, 20005, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
28912	Robert Sterne	202-772-8555
29021	Jorge Goldstein	202-371-2600
32831	Tracy-Gene Durkin	202-371-2600
33876	Donald Featherstone	202-772-8629
33997	Michael Ray	202-772-8569
34368	Randy Lacasse	202-772-8678
34395	Robert Millonig	202-371-2600
35239	Michael Lee	703-628-0233
36013	Robert Sokohl	202-371-2600
36351	Karen Markowicz	202-772-8637
36688	Eric Steffe	202-371-8625
38759	John Covert	202-371-2600
39967	Eldora Ellison	202-772-8508
41306	Timothy Shea Jr	202-371-2600
42289	Donald Banowit	202-371-2600
43447	Jason Eisenberg	202-371-2600
44757	Jeffrey Helvey	202-772-8675
45871	Mark Rygiel	202-371-2600
45986	Peter Jackman	202-371-2600
47756	Gaby Longsworth	202-371-2600
48256	Pamela Mingo	202-371-2600
51802	James Hietala	202-772-8795
53812	Daniel Yonan	202-371-2600
54179	Michelle Holoubek	202-772-8855
54463	Michael Specht	202-371-2600
55440	Jennifer Chagnon	202-772-8890
56374	Ross Hicks	202-371-2600
57772	Lori Brandes	202-371-2600
57913	Paul Calvo	202-772-8846
58164	Kristina Kelly	202-776-5284
58403	Marsha Gillentine	202-772-8692
58770	Harish Ruchandani	--
58885	Matthew Bodenstein	202-772-8787
59244	Stephanie Elmer	202-371-2600
59425	Kyle Conklin	202-371-2600
60167	Scott Schaller	202-371-2600
60390	Richard Coller Iii	202-772-8764
60789	Cynthia Derenzo	+358-10-505-6847
60889	Salvador Bezos	202-772-8533
61205	David Holman	202-371-2600
61327	Jonathan Tuminaro	202-371-2600
61868	Dennies Varughese	202-772-8805
62732	Deborah Sterling	202-772-8501
63208	Christopher O'Brien	202-772-8680
63285	Joseph Mutschelknaus	202-371-2600
63504	Ralph Powers Iii	202-772-8876
63929	Jaume Canaves	202-371-2600
64228	Graham Phero	202-772-8860
64515	Daniel Gajewski	202-772-8774
64587	Syed Ahmed	847-289-5228
64974	Michael Gross Iii	202-772-8762
65021	Christian Camarce	202-772-8895
65172	Byron Pickard	202-371-2600
65211	Michael Malek	410-533-1922
65245	Richard Crudo	202-772-8575
65261	Evan Linderman	202-772-8915
65326	Olga Partington	202-772-8626
65367	Jason Fitzsimmons	202-772-8701
65457	Lauren Schleh	703-836-6400
65458	Robert Schmidt	202-772-8716
66568	Branka Bogunovic	202-772-8727
66638	Jeremiah Frueauf	202-772-8506
67254	Ryan Richardson	202-772-8729
67836	Bonnie Nannenga-Combs	202-371-2600
68395	Daniel Block	202-371-2600
68504	Ji Eun Kim	202-371-2600
68658	Richard Bemben	202-371-2600
68887	Amirali Sharifi	202-772-8871
69086	Daniel Bernard	202-371-2600
69105	Nirav Desai	202-371-2600
69199	Tyler Tassone	202-371-2600
69235	Karen Wong-Chan	202-772-8647
69836	Darrin Hopper	202-772-8630
70077	Shoshana Marvin	202-772-8850
70291	Christopher Gallo	202-371-2600
70307	Joshua Mccoy	202-772-8869
70524	Dohm Chankong	202-772-8529
70680	Sarah Leesman	202-371-2600
71185	Rebekah Holtz	202-772-8712
72039	Daniel Choo	202-371-2600
72126	Tyler Liu	202-772-8641
72314	Lestin Kenton Jr.	202-772-8594
72488	Yuke Wang	214-284-3876
72567	Todd Hopfinger	202-772-8696
72762	Bryan Hsu	202-772-8912
72780	Jessica Harrison	202-772-8901
72981	Trevor O'Neill	202-371-2600
73112	David Haars	202-371-2600
73287	Charles Hammond	202-772-8551
73707	Matthew Smith	202-772-8503
73784	Mark Arrington	202-772-8528
73904	Steven Pappas	202-772-8719
74017	Robert Niemeier	309-678-6806
74290	Ian Soule	202-772-8984
74533	Alexander Covington	202-772-8749
74612	Ivy Clarice Estoesta	202-772-8686
74992	John Higgins	202-783-6040
75034	Tyler Drye	202-772-8614
75069	Tyler Dutton	202-772-8982
75187	Timothy Tang	202-772-8758
75234	Rola Aylo	202-772-8810
75269	Roozbeh Gorgin	202-772-8667
75349	Brian Burke	202-772-8861
75455	Tiaotiao Anchondo	202-772-8804
76231	Todd Thurheimer	202-772-8863
76838	Joseph Venier	202-772-8785
76928	Hasina Ali	202-772-8978
76989	Lisa Ritchey	202-371-2600
77163	Randy Montgomery	202-371-2600
77546	Brian Dudley	216-647-1931
77776	Zhichun Zhang	202-772-8813
78359	Kelsey Pitts	202-772-1271
78365	Wenhao Xiong	202-772-8615
78508	Louis Panzica Jr.	202-772-8954
78921	Maria Briscione	202-772-8517
79290	Michael Webb	202-772-8834
79587	Kristofer Schroder	859-991-6529
79831	Christian Berrios	317-345-2233
79850	Paige Cloud	202-371-2600
79858	Matthew Metzger	202-772-8702
800005	Yangbeini Wang	202-772-883
80057	Ethan Goldschen	202-772-1296
80168	Benjamin Nagasing	202-772-8981
80713	Pengke Li	202-772-8602
80729	Masayuki Iino	202-772-8605
80938	Michael Nathanson	202-777-9644
81041	Xiaowei Jin	202-772-8752
81053	Carson Smith	202-772-1272
81060	Michael Guzzano	202-772-8646
81186	Adil Moghal	202-371-2600
81318	Pratibha Khanduri	202-772-8509
81485	Madeleine Bond	202-772-1299
81654	Payton Miles	202-772-1276
81975	Justin Wang	626-388-6351
82104	Maxwell Furigay	202-772-1281
82162	Reuben Moses	202-772-8664
82208	Sara Keeble	202-772-8560
82263	Hailey Mendenhall	202-772-8933
82382	Xinxiang Zhang	202-772-8621
82448	Kaci Kratch	512-517-8691
82703	Thomas Baraldi	202-772-1279
82896	Deepa Shiwcharan	202-772-1284
83022	Jean Selep	202-772-1270
83036	Nicholas Holdreith	202-772-8888
83174	Marc-Anthony Armand	202-772-1283

Proceeding Documents

Notice: refund approved NOTICE

2026-04-06 FILING PARTY: BOARD

Download

Petitioners' Request for Refund of Post-Institution Fee OTHER

2026-04-02 FILING PARTY: PETITIONER

Download

Director Discretionary Decision: Deny RESPONSE

2026-03-03 FILING PARTY: BOARD

Download

2004

EX2004 - Mathew Declaration Exhibit

2026-02-19 FILING PARTY: PATENT OWNER

Download

2009

EX2009 - Design of Digital Filters Exhibit

2026-02-19 FILING PARTY: PATENT OWNER

Download

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

EX2004 - Mathew Declaration Exhibit

EX2009 - Design of Digital Filters Exhibit

EX2008 - Optimal Communication in Bluetooth Piconets Exhibit

EX2014 - Occupational Noise Exposure_ Exhibit

EX2012 - Sound Level Measurements Exhibit

Ex. 1031-US 11,204,736 File History Exhibit

Ex. 1030-Zophonos Infringement Contentions, ED Tex Exhibit

EX2019 - Noise Exposure Computation Exhibit

EX2006 - Sound Level Measurement Exhibit

EX2017 - Soundhawk Exhibit

EX2007 - BOSE Announces the QuietComfort 20 Headphones Exhibit

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

Ex. 1026-National Judicial Caseload Profile Exhibit

Petitioners' Opposition to Request for Discretionary Denial of Institution RESPONSE

EX2010 - Introducing Bluetooth LE Audio Exhibit

EX2020 - Interim Processes for PTAB Workload Management Memo Exhibit

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

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

EX2005 - Mathew CV Exhibit

EX2018 - The Dose Response Relationship Exhibit

EX2015 - Recreational NIHL Exhibit

Ex. 1032-US 10,656,906 File History Exhibit

EX2013 - Noise-Induced Hearing Loss Exhibit

Patent Owner's Preliminary Response POPR

EX2011 - Sound Dosimeters Exhibit

EX2016 - Embedded Speech Recognition System Exhibit

EX2002 - Samsung's Invalidity Contentions Exhibit

EX2003 - Goldstein Comparison Chart Exhibit

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

Patent Owner's Discretionary Denial Brief RESPONSE

Ex. 1019 - Letter from J. Park to A. Healy Exhibit

Petitioners' Updated Exhibit List NOTICE

Patent Owner's Power of Attorney NOTICE

Patent Owner's Mandatory Notices NOTICE

Notice filing date accorded to Petition NOTICE

Ex. 1016-Excerpts from Microsoft Computer Dictionary Exhibit

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

Ex. 1010-US8194864 (Goldstein864) Exhibit

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

Ex. 1005-US20080137873A1 (Goldstein873) Exhibit

Ex. 1009-US20140254842A1 (Smith) Exhibit

Ex. 1012-US20150012826A1 (Tengstrand) Exhibit

Ex. 1013-US20130064385A1 (Jeong) Exhibit

Ex. 1008-US20090061837A1 (Chaudri) Exhibit

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

Ex. 1011-US20140126748A1 (Usher) Exhibit

Ex. 1003-Kyriakakis CV Exhibit

Ex. 1004-US Patent 11,900,016 File History Exhibit

Ex. 1006-US20130316642A1 (Newham) Exhibit

Ex. 1007-US20070127734A1 (Brulle) Exhibit

Petition: as filed PETITION

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

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

Ex. 1001-US Patent 11,900,016 Exhibit

Ex. 1002-Kyriakakis Declaration IPR2026-00085 Exhibit