Home › PTAB Cases › IPR2026-00300

Vivint LLC vs. Zinser, Duke

Explore the PTAB proceeding IPR2026-00300 filed by Vivint LLC on 2026-03-16. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00300

Filing Date

2026-03-16

Accorded Filing Date

2026-03-16

Institution Decision Date

2026-07-14

Last Modified Date

2026-09-21

Proceeding Type

IPR

Termination Date

2026-07-14

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Vivint LLC

Represented By

McPherson, Patricket al

Patent Owner / Respondent

Zinser, Duke

Represented By

SORDEN, GARYet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2600 - Communications

Patent Information

1 Patent Involved

Respondent Application Number 11559808

Respondent Patent Number 7583191

External Links

Espacenet

Google Patents

Respondent Inventor Duke W. Zinser

Respondent Tech Center TC 2600 - Communications

Address and Attorney/Agent Information

1 Registered Practitioner

Power of Attorney & Correspondence

Firm / Entity Name Kirby Drake Law PLLC

Customer Number 178493

Address 2550 Pacific Avenue, Suite 700, Dallas, TX, 75226, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
55126	Kirby Drake	214-367-6010

Proceeding Documents

Notice: NOTICE OF REFUND NOTICE

2026-09-21 FILING PARTY: BOARD

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Petitioner's Request for Refund of Post-Institution Fees OTHER

2026-09-18 FILING PARTY: PETITIONER

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Director Discretionary Decision: Deny RESPONSE

2026-07-14 FILING PARTY: BOARD

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2026

Patent Translate for DE2535728A1, dated June 17, 2026 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2037

Patent Owner’s Complaint for Patent Infringement, dated September 18, 2025, entered in Zinser v. Vivint, LLC, et al., No. 4:25-cv-1030, Dkt. 1 (E.D. Tex.) Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2039

Dictionary of Engineering, 2d Ed., p.126 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2038

Declaration of Dr. Jing Hu, dated January 22, 2016, in Apple Inc. v. DSS Tech. Mgmt., Inc., IPR2015-00369, Exhibit 1014, dated January 22, 2016 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2031

U.S. Patent No. 3,896,425 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2027

U.S. Patent No. 4,081,830 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2033

U.S. Patent No. 4,479,053 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2036

Claim Construction Order, dated December 7, 2021, entered in SB IP Holdings, LLC v. Vivint Smart Home, Inc., et al., No. 4:20-cv-886, Dkt. 71 (E.D. Tex.) Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2024

Webster’s Third New International Dictionary, Unabridged, pp. 497, 1475, 1630, 1828 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2021

Declaration of Dr. Robert Akl, D.Sc. Regarding Validity of Claims 21 – 47 of U.S. Patent 7,583,191 in Support of Patent Owner’s Preliminary Response Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2034

“Depth Estimation From a Sequence of Monocular Images with Known Camera Motion,” by Zhuang, Sudhakar, and Shieh, published in the IEEE publication Robotics and Autonomous Systems, Vol. 13, Issue 2, pp. 87 – 95, July 1994 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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Patent Owner Duke W. Zinser's Preliminary Response POPR

2026-06-22 FILING PARTY: PATENT OWNER

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2028

U.S. Patent No. 3,195,043 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2032

U.S. Patent No. 10,009,520 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2022

Memorandum to Members of the Patent Trial and Appeal Board from Coke Morgan Stewart re: Enforcement and Non-Waiver of 37 C.F.R. § 42.104(b)(4) and Permissible Uses of General Knowledge in Inter Partes Reviews, dated July 31, 2025 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2025

U.S. Patent No. 2,866,506 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2023

Email [string] to A. Nair from J. Powers re: Zinser v. Vivint – Plaintiff’s proposed Terms for Claim Construction, dated June 9, 2026 at 3:45 pm Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2030

U.S. Patent No. 3,829,850 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2035

Vivint’s Opening Claim Construction Brief, dated October 19, 2021, entered in SB IP Holdings, LLC v. Vivint Smart Home, Inc., et al., No. 4:20-cv-886, Dkt. 54 (E.D. Tex.) Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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2029

U.S. Patent No. 3,670,652 Exhibit

2026-06-22 FILING PARTY: PATENT OWNER

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1018

EX-1018 Email from B. Green to G. Sorden dated June 18, 2026 (Sotera Plus Stipulation) Exhibit

2026-06-19 FILING PARTY: PETITIONER

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Petitioner's Opposition to PO's Request for Discretionary Denial RESPONSE

2026-06-19 FILING PARTY: PETITIONER

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Multiple Petition Explanation OTHER

2026-06-01 FILING PARTY: PETITIONER

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1012

EX-1012 Excerpts of Plaintiff's Disclosure of Asserted Claims Exhibit

2026-06-01 FILING PARTY: PETITIONER

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1016

EX-1016 Letter from B. Greene to G. Sorden dated May 20, 2026 Exhibit

2026-06-01 FILING PARTY: PETITIONER

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