Krisp Technologies, Inc. vs. Sanas.AI, Inc.

Explore the PTAB proceeding IPR2026-00272 filed by Krisp Technologies, Inc. on 2026-03-27. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00272

Filing Date

2026-03-27

Accorded Filing Date

2026-03-27

Institution Decision Date

2026-09-02

Last Modified Date

2026-09-08

Proceeding Type

IPR

Termination Date

—

Trial Status

Trial Instituted

Parties & Counsel

Petitioner

Krisp Technologies, Inc.

Represented By

Buresh, Ericet al

Patent Owner / Respondent

Sanas.AI, Inc.

Represented By

Macedo, Charleset al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2600 - Communications

Patent Information

1 Patent Involved

Respondent Application Number 17460145

Respondent Patent Number 11948550

External Links

Espacenet

Google Patents

Respondent Inventor Maxim Serebryakov et al

Respondent Tech Center TC 2600 - Communications

Address and Attorney/Agent Information

22 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Troutman Pepper Locke LLP (Rochester)

Customer Number 11951

Address 80 Linden Oaks, Suite 320, Rochester, NY, 14625, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
35584	Gunnar Leinberg	585-270-2103
40087	Edwin Merkel	585-270-2104
51998	Alison Mccarthy	617-204-5100
56048	Tate Tischner	585-270-2109
59767	Bryan Smith	585-270-2141
60758	Nicholas Gallo	585-270-2133
61926	Chris Davis	404-885-3145
63064	Mark Jones	404-885-3652
65668	Megan O'Gara	585-270-2110
68605	Scott Bergeson	804-697-1476
69241	Amanda Keys	585-270-2116
69372	Alina Khankin	212-704-6000
72877	Bryan Cannon	202-220-1257
73590	Mark Bell Iii	610-640-7838
76449	Dustin Ferzacca	978-578-3804
77780	Olivia Block	585-270-2142
78968	Ann Slade	585-270-2148
79568	Stephanie Remy	404-885-3239
79721	Anna Gromova	585-270-2153
81204	Harrison Lawrence	972-679-0190
81615	Emily Tarsis	585-270-2129
82542	Amanda Wahl	585-270-2156

Proceeding Documents

Order: SCHEDULING ORDER ORDER

2026-09-08 FILING PARTY: BOARD

Download

Institution Decision: Grant DECISION

2026-09-02 FILING PARTY: BOARD

Download

Director Discretionary Decision: Refer RESPONSE

2026-07-21 FILING PARTY: BOARD

Download

2032

Exhibit 2032 Exhibit

2026-06-30 FILING PARTY: PATENT OWNER

Download

2034

Exhibit 2034 Exhibit

2026-06-30 FILING PARTY: PATENT OWNER

Download

Krisp Technologies, Inc. vs. Sanas.AI, Inc.

Proceeding Overview

Parties & Counsel

Petitioner

Krisp Technologies, Inc.

Represented By

Patent Owner / Respondent

Sanas.AI, Inc.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Order: SCHEDULING ORDER ORDER

Institution Decision: Grant DECISION

Director Discretionary Decision: Refer RESPONSE

Exhibit 2032 Exhibit

Exhibit 2034 Exhibit

Patent Owner's Preliminary Response POPR

Exhibit 2033 Exhibit

EX1048-Nitesh Varshney LinkedIn Profile Exhibit

EX1050-Time to Trial Statistics for N.D. Cal. Exhibit

EX1047-Audio of Interview with Nitesh Varshney Exhibit

EX1049-Screenshot of YouTube Video Description Exhibit

Opposition to Patent Owner’s Request for Discretionary Denial RESPONSE

Exhibit 2021 Exhibit

Exhibit 2017 Exhibit

Exhibit 2011 Exhibit

Exhibit 2005 Exhibit

Exhibit 2031 Exhibit

Exhibit 2022 Exhibit

Exhibit 2009 Exhibit

Exhibit 2015 Exhibit

Exhibit 2023 Exhibit

Exhibit 2006 Exhibit

Exhibit 2002 Exhibit

Exhibit 2007 Exhibit

Exhibit 2025 Exhibit

Exhibit 2026 Exhibit

Exhibit 2014 Exhibit

Exhibit 2008 Exhibit

Exhibit 2018 Exhibit

Exhibit 2019 Exhibit

Exhibit 2012 Exhibit

Exhibit 2020 Exhibit

Exhibit 2029 Exhibit

Exhibit 2004 Exhibit

Exhibit 2010 Exhibit

Exhibit 2003 Exhibit

Exhibit 2028 Exhibit

Exhibit 2024 Exhibit

Exhibit 2027 Exhibit

Exhibit 2001 Exhibit

Exhibit 2030 Exhibit

Exhibit 2013 Exhibit

Patent Owner's Request for Discretionary Denial RESPONSE

Petitioner's Updated Exhibit List NOTICE

EX1046-Petitioner's Stipulation Exhibit

Notice: Power of Attorney NOTICE

Notice: Mandatory Notice NOTICE

Notice filing date accorded NOTICE

EX1008-U.S. Patent Publication No. 2020/0193971 to Feinauer et al. Exhibit

EX1027-Shi, et al., A Measure of Phonetic Similarity to Quantify Pronunciat Exhibit

EX1029-Sun, et al. Phonetic Posteriorgrams for Many-to-One Voice Conversion Exhibit

EX1036-Leland Roberts, Understanding the Mel Spectrogram, Medium, (2020) Exhibit

EX1043-Liu, et al. End-To-End Accent Conversion Without Using Native Exhibit

Petition for Inter Partes Review of U.S. Patent No. 11948550 PETITION

EX1015-Mohri, et al. Foundations of Machine Learning second edition Exhibit

EX1019-Vijayaramachandran, et al. Impact of Hidden Layer in Artificial Neur Exhibit

EX1022-Sun, et al. Improving Low-Resource Speech Recognition Based on Impro Exhibit

EX1020-Mijwel, et al., Overview of Neural Networks, Babylonian Journal Exhibit

EX1030-Zhao, et al. Converting Foreign Accent Speech Without a Reference Exhibit

EX1016-Priority PCT 2022/057759 to Fan et al. and Certified English Trans Exhibit

EX1001-U.S. Patent No. 11,948,550 Exhibit

EX1002-Prosecution History for the 11,948,550 Patent Exhibit

EX1032-David Crystal, A Dictionary of Linguistics and Phonetics Exhibit

EX1034-U.S. Patent Application Publication No. 2022/0122579 to Biadsy et al Exhibit

EX1045-Declaration of Mina Ching Exhibit