CrowdStrike, Inc. et al. vs. Skysong Innovations, LLC

Explore the PTAB proceeding IPR2025-01398 filed by CrowdStrike, Inc. et al. on 2025-08-25. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01398

Filing Date

2025-08-25

Accorded Filing Date

2025-08-25

Institution Decision Date

2026-01-09

Last Modified Date

2026-02-19

Proceeding Type

IPR

Termination Date

2026-01-09

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

CrowdStrike, Inc. et al.

Represented By

Hart, Paulet al

Patent Owner / Respondent

Skysong Innovations, LLC

Represented By

Kesan, Jayet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2600 - Communications

Patent Information

1 Patent Involved

Respondent Application Number 16405612

Respondent Patent Number 11275900

External Links

Espacenet

Google Patents

Respondent Inventor Revanth Patil et al

Respondent Tech Center TC 2600 - Communications

Address and Attorney/Agent Information

70 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name POLSINELLI PC (Main Customer Number)

Customer Number 27148

Address PO Box 140310, KANSAS CITY, MO, 64114-0310, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
38726	Ari Bai	602-650-0121
38993	Michael Pegues	214-397-0030
39078	Patrick Woolley	816-753-1000
39388	James Stipek	816-753-1000
40593	Kathryn Doty	618-692-2600
42503	Gregory Durbin	303-697-3988
42927	Tara Nealey	314-889-8000
43548	Kory Christensen	415-248-2139
44093	Darren Donnelly	650-461-7735
44166	Thomas Isaacson	443-964-2209
44738	Eric Hanson	404-253-6276
46353	Brian Diekhoff	314-889-8000
46393	Jiewen Davis	713-374-1692
47138	Peter Thurlow	212-413-2832
47496	John Cleary	212-413-2837
50565	Tam Thanh Pham	415-248-2116
50873	S Johnson	720-931-8134
51774	Roberta Hanson	720-931-1192
52016	Michelle Mcmullen	312-463-6303
54541	Michael Williamson	248-689-4071
55311	Andrea Porterfield	816-753-1000
55402	Michael Longmeyer	314-889-8000
56468	Andrew Weaver	713-374-1600
57952	Rebecca Mcfadyen	305-921-1816
58582	Simon Booth	202-772-1498
58653	William Dibianca	212-654-01999
59089	Jonathan Kirley	312-873-3624
59507	Derek Donahoe	720-931-8160
59844	Emily Peyser	206-393-5441
59914	Brian Mcknight	202-772-8485
60342	Patrick Muffo	312-873-2988
60558	Ron Galant	312-873-3633
60834	Rong Yang	310-229-1324
63021	Bradley Cardon	303-583-8233
63144	Jing He	720-931-8165
63316	Elton Dean Iii	314-889-8000
66950	Corey Casey	816-753-1000
66984	Taryn Elliott	303-583-8243
67531	Matthew Chung	202-626-8391
68060	Babak Monajemi	202-626-8314
70712	Joshua Pranckun	303-583-8269
70801	Timothy Fontes	602-650-2096
71844	Poornima Sukumar	336-406-6718
71896	Zachary Block	314-889-8000
72515	Jordan Riviello	212-684-01999
73071	Jeffrey Kuo	713-374-1600
73157	Kenneth Kahan Newton	206-393-5424
73210	Jacek Wnuk	415-248-2122
73649	Allison Krepel	314-889-8000
74314	David Mika	303-583-8253
75190	Paul Zarek	314-889-8000
75318	Samuel Hayim	480-650-7842
75861	Kurtis Anderson	305-921-1817
75910	Stephen Dew	404-253-6003
76102	Gholson Glass	713-374-1600
76369	Christian Lek	909-961-9988
76387	Elias Larson	312-460-5349
76809	Ruby Chung	415-248-2102
77040	Kevin Davis	310-229-1321
77180	Jose Jimenez Velez	212-413-2881
77605	Kendall Gurule	303-572-9300
77971	Blake Ronnebaum	816-572-4684
78601	Amelia Brooks	206-393-5400
79202	Megan Hart	314-889-8000
80192	Tori Sorensen	712-249-6590
80256	Derk Westermeyer	206-393-5400
81493	Trevor Wagner	602-650-2006
81538	Warefta Hasan	866-319-3188
82044	Michael Zawalski	314-889-8000
82923	Stephen Wellard	415-248-2120

Proceeding Documents

Notice: refund approved NOTICE

2026-02-19 FILING PARTY: BOARD

Download

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

2026-02-05 FILING PARTY: PETITIONER

Download

Director Discretionary Decision: Deny RESPONSE

2026-01-09 FILING PARTY: BOARD

Download

Petitioner’s Opposition to Patent Owner’s Request for Discretionary Denial RESPONSE

2025-12-01 FILING PARTY: PETITIONER

Download

1037

EX1037-Standing Order Governing Proceedings (OGP) 4.4 – Patent Cases, Western District of Texas Waco Division Exhibit

2025-12-01 FILING PARTY: PETITIONER

Download

CrowdStrike, Inc. et al. vs. Skysong Innovations, LLC

Proceeding Overview

Parties & Counsel

Petitioner

CrowdStrike, Inc. et al.

Represented By

Patent Owner / Respondent

Skysong Innovations, LLC

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: refund approved NOTICE

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

Director Discretionary Decision: Deny RESPONSE

Petitioner’s Opposition to Patent Owner’s Request for Discretionary Denial RESPONSE

EX1037-Standing Order Governing Proceedings (OGP) 4.4 – Patent Cases, Western District of Texas Waco Division Exhibit

EX1044-Motorola Solutions, Inc., v. Stellar, LLC, IPR2024-01205, EX1043 (Petitioner’s Sotera Stipulation) Exhibit

EX1032-’900 Patent Assignment to Skysong Innovations, LLC (Executed January 29, 2025) Exhibit

POPR_Redacted Exhibit

EX1042-Mobile Data Technologies LLC, v. Meta Platforms, Inc., No. 7:22-cv-00244-ADA-DTG, Dkt. 83 (W.D. Tex. Dec. 18, 2023) Order Granting Motion to Transfer Venue Exhibit

EX1035-Quantum Imaging, LLC v. Sony Interactive et al., No. 1:23-CV-1212-ADA-DTG, Dkt. 357 (W.D. Tex. Dec. 4, 2024) Exhibit

EX1041-Virtamove, Corp. v. Google LLC, No. 7:24-cv-00033-DC-DTG, Dkt. 86 (W.D. Tex. Jan. 22, 2025) Order Granting Motion to Transfer Venue Exhibit

EX1043-Virtamove, Corp. v. Google LLC, No. 7:24-cv-00033-DC-DTG, Dkt. 102 (W.D. Tex. May 7, 2025) Order of Transfer Exhibit

EX1038-U.S. District Courts Median Time to Trial During 12-Month Period Ending June 30, 2025 Exhibit

EX1039-Skysong Innovations, LLC v. CrowdStrike, Inc. et al., No. 7:25-cv-00040-DC-DTG, Dkt. 61 (W.D. Tex. Oct. 9, 2025) (Motion to Transfer) Exhibit

Medvidovic Declaration Exhibit

EX1033-Declaration of Dr. Shakarian in Related IPR2025-01170 (’897 IPR) Exhibit

EX1036-VOIP-PAL.com, Inc. v. Samsung Elecs. Co., Ltd., No. 6:21-cv-01246, Dkt. 46 (W.D. Tex. Nov. 30, 2021) Exhibit

EX1040-Docket Navigator Page Showing Success Rate of Motions to Transfer for Judge Gilliland Exhibit

EX1034-Declaration of Dr. Shakarian in Related IPR2025-01397 (’385 IPR) Exhibit

CYR3CON Product Roadmap Exhibit

Default Protective Order Exhibit

PO's Motion to Seal and Default Protective Order MOTION

Patent Owner Discretionary Denial Brief_Redacted RESPONSE

Declaration of Dr. Paulo Shakarian Redacted Exhibit

Executive Order No. 14,028 Exhibit

Civil Docket For Case # 725-cv-00040-DC-DTG Exhibit

Skysong’s First Amended Complaint against CrowdStrike Exhibit

Table of CrowdStrike IPRs and Parallel District Litigation Schedules Exhibit

Revision to Rules of Practice Before the Patent Trial and Appeal Board Exhibit

Civil Docket For Case # 225-cv-00098-JRG Exhibit

Skysong v. CrowdStrike, Dkt. No. 55, Scheduling Order Exhibit

Petitioner's Updated Exhibit List NOTICE

EX1031-Petitioner CrowdStrike, Inc.’s Notice of Sotera Plus Stipulation Exhibit

Notice: Power of Attorney NOTICE

Notice: Mandatory Notice NOTICE

Notice: NOTICE OF FILING DATE ACCORDED TO PETITION AND TIME FOR FILING PATENT OWNER PRELIMINARY RESPONSE NOTICE

EX1028-Alaa Alahmadi, Automatic text classification using bag of words and Exhibit

EX1014-Dark Web vs. Deep Web: 5 Key Differences, https://www.Spiceworks.com Exhibit

EX1022-Okapi-BM25, https://en.wikipedia.org/wiki/Okapi_BM25 Exhibit

EX1001-U.S. Patent No. 11,275,900 to Patil et al. Exhibit

EX1011-U.S. Patent No. 7,028,250 to Ukrainczyk et al Exhibit

EX1010-Tong Xiao et al., KNN and Re-ranking Models for English Patent Minin Exhibit

EX1017-Xinqi Zhu et al., B-CNN: Branch Convolutional Neural Network for Hie Exhibit

EX1002-File History of U.S. Patent No. 11,275,900 Exhibit

EX1023-M. Hassler et al., Text preparation through extended tokenization Exhibit

Petitioner's Power of Attorney NOTICE

EX1027-Roman Eisner et al., Improving Protein Function Prediction using the Exhibit

Petition for Inter Partes Review of U.S. Patent No. 11,275,900 PETITION

EX1026-Mitch Macdonald et al., Identifying Digital Threats in a Hacker Web Exhibit

EX1025-Tianjun Fu et al., A Focused Crawler for Dark Web Forums, Journal of Exhibit

EX1004-Isuf Deliu, Extracting Cyber Threat Intelligence From Hacker Forums Exhibit

EX1007-Eibe Frank, Pruning Decision Trees and Lists, University of Waikato Exhibit

EX1018-Zhicheng Yan et al., HD-CNN: Hierarchical Deep Convolutional Neural Exhibit

EX1016-Isuf Deliu et al., Extracting cyber threat intelligence from hacker Exhibit

EX1009-Nitesh V. Chawla et al., SMOTE: Synthetic Minority Over-sampling Te Exhibit

EX1005-U.S. Patent No. 9,330,167 to Pendar Exhibit

EX1019-Quoc Le et al., Distributed Representations of Sentences and Documen Exhibit

EX1030-Curriculum vitae (CV) of Dr. Erez Zadok. Exhibit

EX1029-Microsoft Computer Dictionary Exhibit

EX1020-Revanth Patil et al., Multi-class and Multi-label classification of Exhibit

EX1024-Jasmeet Singh et al., A systematic review of text stemming technique Exhibit

EX1021-Alex Smola et al., Introduction to Machine Learning, (2008) Exhibit

EX1015-Thomas Hoffman et al., Hierarchical Document Categorization with Sup Exhibit

EX1008-Mallinali Ramirez-Corona et al., Multi-label Classification for Tree Exhibit

EX1012-Eric Nunes et al., Darknet and Deepnet Mining for Proactive Cybersec Exhibit