Imperative Care, Inc. vs. Inari Medical, Inc. et al.

Explore the PTAB proceeding IPR2025-01025 filed by Imperative Care, Inc. on 2025-05-20. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01025

Filing Date

2025-05-20

Accorded Filing Date

2025-05-20

Institution Decision Date

2025-12-11

Last Modified Date

2026-09-10

Proceeding Type

IPR

Termination Date

—

Trial Status

Trial Instituted

Parties & Counsel

Petitioner

Imperative Care, Inc.

Represented By

Stowell, Joshuaet al

Patent Owner / Respondent

Inari Medical, Inc. et al.

Represented By

Hamilton, Josephet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 3700 - Mechanical Engineering & Manufacturing

Patent Information

1 Patent Involved

Respondent Application Number 18342553

Respondent Patent Number 11974910

External Links

Espacenet

Google Patents

Respondent Inventor Ben Merritt et al

Respondent Tech Center TC 3700 - Mechanical Engineering & Manufacturing

Address and Attorney/Agent Information

103 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name ASHURST PERKINS COIE US LLP - SEA - PATENT-SEA

Customer Number 25096

Address P.O. BOX 1247, SEATTLE, WA, 98111-1247, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
30176	Michael Glenn	650-838-4495
31646	Kenneth Ohriner	310-788-3267
34047	Michael Wise	310-788-3210
36878	Chun Ng	206-359-800
37263	Robert Woolston	206-359-3259
38264	Paul Parker	206-287-3258
38708	David Laub	202-654-6280
38829	Stephen Bishop	206-359-3129
41131	Viola Kung	650-838-4457
42216	John Wechkin	206-359-3257
43312	Bing Ai	858-720-5707
43498	Susan Betcher	206-359-6088
45138	Mark Strickland	480-262-6882
50774	Rodger Carreyn	310-788-3225
51696	David Fournier	312-324-8643
51770	Joseph Hamilton	310-788-9900
52196	John Schnurer	858-720-5705
52283	Julia Thomas	650-868-9192
52354	Brandon White	202-654-6200
52571	Veronica Ascarrunz	202-434-1621
53683	Amanda Tessar	303-291-2357
54224	Karl Klassen	206-359-8000
54627	Bhaskar Kakarla	240-683-9579
54675	Aaron Poledna	206--35-9-8000
55369	Gene Lee	261-261-6825
55487	Joshua Nelson	208-343-3434
55595	Vinay Sathe	858-720-5736
55937	Babak Tehranchi	858-720-5734
56924	David St. John-Larkin	303-291-2300
57013	Thomas Yee	212-261-6845
58195	Kourtney Merrill	303-291-2388
60621	Alberto Araiza	650-838-4300
63210	Kevin Patariu	858-720-5726
63927	Xiaobing Zhang	917-528-3802
64379	Colin Fowler	650-838-4725
65002	Lara Dueppen	310-788-3349
65152	Stephen Brookman	602-351-8058
65488	Vikram Iyengar	412-352-9198
66019	Patrick Mckeever	858-720-5722
66122	Nicole Dunham	206-359-3042
66636	Andrew Dufresne	608-663-7460
67372	Yingli Wang	310-788-3348
67639	Courtney Prochnow	310-788-3284
68636	Miguel Bombach	858-720-5700
69424	Han Saem Hong	206-359-3125
71071	Kevin Kantharia	858-720-5738
71097	Linda Falcon	206-359-8000
71235	Andrew Pettit	650-838-4478
71689	Caroline Teichner	312-282-5588
72128	Lena Petrovic	510-517-4228
72167	Kyle Canavera	858-720-5782
72217	Fareid Asphahani	858-720-5700
72240	Karan Singh	212-261-6869
72316	Thomas Millikan	858-449-8162
72317	Joseph Reid	858-720-5764
72737	Allison Glasunow	206-949-0925
72766	Yun Lu	858-720-5732
73038	Sumedha Ahuja	202-654-6348
73049	Seok Jun Han	224-766-0217
73876	Anna Onley	773-960-2476
74399	Jacob Gober	206-359-3812
74407	Moeka Takagi	650-838-4494
74806	Dmitry Kagan	212-261-6821
74962	Jingyuan Huang	650-838-4448
74963	Daniel Jackstadt	206-359-3175
74974	Anni Siitonen	120-635-93594
75050	Steven Beigelmacher	206-359-8000
75363	Roderick O'Dorisio	303-291-2303
75568	Gautam Thatte	213-999-2054
75640	Xiaoyu Wang	908-616-7330
75862	Seyoung Cheon	858-720-5751
75992	Evan Day	858-720-5700
76043	Yang Hsien Hsu	206-359-8000
77244	Bryan Johnson	415-954-4114
77322	Sean Lee	650-739-7574
77516	Matthew Williams	206-359-3343
77612	Vijay Kumar	425-308-8050
78118	Runkun Jiang	858-720-5700
78749	Alice Jenkins	332-223-3946
78901	Benjamin Cashdollar	206-359-8000
79055	Gregory Logan	737-256-6102
79056	Louis Yang	650-838-4733
79130	Zhenxing Bi	202-654-6299
79222	Mckenzie Chen	312-324-8695
79896	Katlyn Stockslager	206-359-6062
79993	Samantha Hunt	206-757-8563
80395	Michael Wilson	208-457-2398
80461	Brendan Palmer	208-813-3930
80985	Madison Aufai	206-359-8011
81177	Vishal Ravi	332-238-2776
81419	Benjamin Desch	206-359-6112
81523	Sara Serag	617-721-0218
81577	Julie Fischer	262-527-1502
81807	Jason Francis	332-238-2797
81828	Sean Lee	650-838-4300
81941	Justin Cho	206-359-3084
82027	Jun Hyuk Hong	212-261-6866
82171	Adeh Vartanian	818-281-2027
82439	Aidan Faustina	650-838-4359
82602	Willa Wu	206-359-6110
82917	Joseph Merritt	120-635-96312
83180	Adwait Jawale	781-291-9725
L0770	Yang-Hsien Hsu	206-359-8000

Proceeding Documents

162

Petitioner's Updated Exhibit List NOTICE

2026-09-04 FILING PARTY: PETITIONER

Download

1090

Petitioner Imperative Care’s Demonstratives for Consolidated Oral Argument Exhibit

2026-09-04 FILING PARTY: PETITIONER

Download

2022

EX1022 - Patent Owner's Demonstratives Exhibit

2026-09-04 FILING PARTY: PATENT OWNER

Download

Patent Owner's Updated Exhibit List NOTICE

2026-09-04 FILING PARTY: PATENT OWNER

Download

Petitioner's Updated Exhibit List NOTICE

2026-09-04 FILING PARTY: PETITIONER

Download

Imperative Care, Inc. vs. Inari Medical, Inc. et al.

Proceeding Overview

Parties & Counsel

Petitioner

Imperative Care, Inc.

Represented By

Patent Owner / Respondent

Inari Medical, Inc. et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Petitioner's Updated Exhibit List NOTICE

Petitioner Imperative Care’s Demonstratives for Consolidated Oral Argument Exhibit

EX1022 - Patent Owner's Demonstratives Exhibit

Patent Owner's Updated Exhibit List NOTICE

Petitioner's Updated Exhibit List NOTICE

Order Voluntarily Dismissing Appeals Pursuant to FRAP 42(b)(1) in Inari Medical, Inc. v. Imperative Care, Inc., 26-1552, 26-1922 (United States Court of Appeals for the Federal Circuit, September 4, 2026) Exhibit

Joint Stipulation of Voluntary Dismissal for Appellant Inari Medical, Inc. and Appellee Imperative Care, Inc. in Inari Medical, Inc. v. Imperative Care, Inc., 26-1552, 26-1922 (United States Court of Appeals for the Federal Circuit, September 3, 2026) Exhibit

Patent Owner's Reply to Petitioner's Opposition to Patent Owner's Motion to Exclude REPLY

EX2021 - Inari’s Reply in Support of Motion for Preliminary Injunction Exhibit

Redacted copy of Inari’s Reply in Support of Motion for Preliminary Injunction (Dkt. #84) in Inari Medical, Inc. v. Imperative Care, Inc., 24-cv-03117-EKL (N.D. Cal.) (filed February 21, 2025) Exhibit

Final Written Decision Determining All Challenged Claims Unpatentable (Paper 35) in Imperative Care, Inc. v. Inari Medical, Inc., IPR2024-01157 (P.T.A.B. January 16, 2026) Exhibit

Petitioner’s Opposition to Patent Owner’s Motion to Exclude OPPOSITION

Declaration of Troy Thornton in Support of Opposition to Plaintiff’s Motion for Preliminary Injunction (Dkt. #36-14) in Inari Medical, Inc. v. Imperative Care, Inc., 24-cv-03117-EKL (N.D. Cal.) (filed September 9, 2024) Exhibit

Petitioner's Updated Exhibit List NOTICE

Patent Owner's Motion to Exclude MOTION

EXPUNGED_Order: Setting Oral Argument ORDER

Order: Setting Oral Argument ORDER

Petitioner’s Request for Oral Argument OTHER

Petitioner's Objections to Admissibility of Evidence Served with Patent Owner's Sur-Reply OTHER

Patent Owner's Sur-Reply OTHER

EX2020 - IPR2025-01021 Paper 32 Pet Reply 2026-06-04 Exhibit

EX2019 - Transcript Thornton Troy 2025-03-19 Exhibit

EX2018 - Transcript Thornton Troy 2026-07-01 Exhibit

Petitioner's Updated Exhibit List NOTICE

Patent Owner's Notice of Deposition NOTICE

Final Written Decision Determining All Challenged Claims Unpatentable (Paper 36) in Imperative Care, Inc. v. Inari Medical, Inc., IPR2025-00289 (P.T.A.B. June 9, 2026) Exhibit

Petitioner's Updated Exhibit List NOTICE

Patent Owner's Objections to Petitioner's Evidence OTHER

U.S. Patent Publication No. 2004/0092962 A1 Exhibit

Penumbra, Optimizing Direct Aspiration (May 2013) Exhibit

Troy Thornton and Liz McDermott, MitraClip System Design and History of Development, published as Ch. 7 in Percutaneous Mitral Leaflet Repair (1st ed. 2012) Exhibit

MitraClip Clip Delivery System Instructions for Use (2013) Exhibit

U.S. Patent No. 8,721,714 Exhibit

Edwards Lifesciences, Fogarty® Occlusion Catheters (product brochure) http://web.archive.org/web/20150228193218/http://www.edwards. com/products/vascular/atraumaticocclusion/pages/occlusioncatheter.aspx Exhibit

Petitioner's Updated Exhibit List NOTICE

James I. Fann et al., Beating Heart Catheter-Based Edge-to-Edge Mitral Valve Procedure in a Porcine Model Efficacy and Healing Response, 110 Circulation, 988-993 (2004) Exhibit

Redacted Deposition Transcript of Troy Thornton dated September 30, 2024 in Inari Medical, Inc. v. Imperative Care, Inc., 24-cv-03117-EKL (N.D. Cal.) Exhibit

U.S. Patent No. 11,432,835 B2 to Shaffer et al. (“Pons”) Exhibit

U.S. Patent Publication No. 2003/0130721 A1 Exhibit

Deposition Transcript of PO’s Expert Brian Brown dated May 13, 2026 Exhibit

Decision Granting Institution of Inter Partes Review for U.S. Patent No. 11,969,333 (Paper 15) in Imperative Care, Inc. v. Inari Medical, Inc., IPR2025-01021 (P.T.A.B. December 11, 2025) Exhibit

U.S. Patent Publication No. 2010/0145434 A1 Exhibit

Supplemental Expert Declaration of Troy Thornton Exhibit

Notice of Decisions on Institution of Inter Partes Review for U.S. Patent No. 12,016,580 (Paper 11) in Imperative Care, Inc. v. Inari Medical, Inc., IPR2025-01264 (P.T.A.B. December 11, 2025) Exhibit

Redacted Deposition Transcript of PO’s Expert Brian Brown dated August 27, 2024 in Inari Medical, Inc. v. Imperative Care, Inc., 24-cv03117-EKL (N.D. Cal.) Exhibit

U.S. Patent No. 5,030,201 Exhibit

Petitioner's Reply to Patent Owner's Response REPLYTOOPP

FDA Summary of Safety and Effectiveness Data (SSED) for the MitraClip Clip Delivery System (2013) Exhibit

U.S. Patent No. 8,657,867 Exhibit

Gibbs, et al., Temporary Stent as a bail-out device during percutaneous transluminal coronary angioplasty: preliminary clinical experience, 71 British Heart J., 372-377 (1994) Exhibit

U.S. Patent No. 11,638,585 Exhibit

Deposition Transcript of PO’s Expert Dr. Paul Zalesky in IPR2025- 00289 dated November 7, 2025 Exhibit

Deposition Transcript of PO’s Expert Dr. Christopher Morris dated May 4, 2026 Exhibit

Imperative Care's Notice of Deposition of Brian Brown NOTICE

Imperative Care's Notice of Deposition of Cristopher S. Morris, M.D. NOTICE

Petitioner's Updated Exhibit List NOTICE

Final Written Decision Determining All Challenged Claims Unpatentable (Paper 33) in Imperative Care, Inc. v. Inari Medical, Inc., IPR2025-00156 (P.T.A.B. Apr. 7, 2026) Exhibit

Petitioner's Objections to Admissibility of Evidence Served with Patent Owner's Response OTHER

EX2012 - OPERATING INSTRUCTIONS for the Pump Drive BVP-BP for centrifugal blood pump heads BP-50/BP-80 and SP-45 Exhibit

EX2016 - Declaration of Dr. Christopher S. Morris Exhibit

EX2008 - Supplemental Declaration of Brian Brown Exhibit

EX2010 - Instructions for Use for Maquet Getinge Group ROTAFLOW Centrifugal Pump Exhibit

EX2015 - Deposition Transcript of Aquilla S. Turk (February 25, 2026) Exhibit

EX2011 - 40 Year Bio Pump Timeline Exhibit

Patent Owner's Response RESPONSE