Pfizer Inc. vs. Pogona, LLC

Explore the PTAB proceeding IPR2026-00189 filed by Pfizer Inc. on 2025-12-23. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00189

Filing Date

2025-12-23

Accorded Filing Date

2025-12-23

Institution Decision Date

2026-05-26

Last Modified Date

2026-09-14

Proceeding Type

IPR

Termination Date

—

Trial Status

Trial Instituted

Parties & Counsel

Petitioner

Pfizer Inc.

Represented By

Krinsky, Davidet al

Patent Owner / Respondent

Pogona, LLC

Represented By

POMEROY, MICHAELet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 1600 - Biotechnology & Organic Chemistry

Patent Information

1 Patent Involved

Respondent Application Number 16089040

Respondent Patent Number 11058757

External Links

Espacenet

Google Patents

Respondent Inventor Bruce D. FORREST et al

Respondent Tech Center TC 1600 - Biotechnology & Organic Chemistry

Address and Attorney/Agent Information

119 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name WOLF GREENFIELD & SACKS, P.C.

Customer Number 23628

Address 600 ATLANTIC AVENUE, BOSTON, MA, 02210-2206, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
28129	John Welch	617-646-8000
31616	Edward Gates	617-646-8000
31624	Jason Honeyman	617-646-8222
32950	Edmund Walsh	617-646-8000
34681	James Morris	617-646-8000
35986	Randy Pritzker	617-646-8000
36149	Richard Giunta	617-646-8000
36628	Timothy Oyer	617-646-8251
36971	Douglas Wolf	617-646-8260
38232	Robert Maldonado	212-849-3339
39188	Neil Ferraro	617-646-8267
39213	James Hanifin Jr	617-646-8000
39231	Robert Hunt	617-646-8000
39248	Helen Lockhart	617-646-8249
40024	Jeffrey Hsi	617-646-8556
40212	John Van Amsterdam	617-646-8000
40286	Stephen Rabinowitz	212-849-3356
41418	Patrick Waller	617-646-8000
42866	Scott Mckeown	202-389-6025
43069	Edward Russavage	617-646-8515
43988	Adam Wichman	617-646-8571
46190	Michael Pomianek	617-646-8000
46324	Robert Walat	617-646-8000
46533	Charles Baker	617-646-8381
48207	Maria Trevisan	617-646-8000
48644	Andrew Williams	617-646-8000
50474	Gerald Hrycyszyn	617-646-8313
52146	Michael Rader	617-646-8000
52318	Janice Vatland	617-646-8000
52728	Tani Chen	617-646-8214
52957	Matthew Grady	617-646-8000
54986	Melissa Beede	617-646-8000
55151	Roque El Hayek	617-646-8000
57063	Gregory Nieberg	212-849-3338
58404	Tonia Sayour	212-697-7890
58423	Gabriel Mccool	617-646-8000
58767	Michael Parsons	617-646-8942
59924	Nidhi Malla	617-646-8572
61115	Jonathan Roses	617-646-8157
61146	Robert Jensen	617-646-8271
61674	Jessamine Lee	617-646-8272
62868	Daniel Young	617-646-8245
63390	Zachary Piccolomini	617-646-8579
63456	Thomas Franklin	617-646-8000
64978	Marc Johannes	617-646-8209
65507	Robert Sahr	617-646-8484
65843	Heather Dipietrantonio	617-646-8000
66229	Victor Cheung	202-571-5012
66256	Brandon Blackwell	617-646-8360
67110	Jason Balich	617-646-8498
67131	John Harmon Iii	617-646-8307
67336	Elisabeth Hunt	617-646-8443
68177	Oona Johnstone	617-504-4219
68598	Jennifer Wang	617-646-8392
69059	William Zhang	617-646-8257
70034	Cara Dawson	617-646-8000
70972	Daniel Rudoy	617-646-8303
71278	Daniel Smith	214-292-4071
72065	Mark Consilvio	202-408-3938
72100	David Gesner	617-646-8437
73256	Laura Rogers	212-336-3865
73865	Matthew Duffey	617-646-8537
73869	Zhiyun Ge	617-646-8472
73995	Curtis Powell	617-646-8534
74068	Jie Xiang	617-646-8000
74442	Lin Li	617-646-8502
74522	Kevin Macdonald	617-646-8497
75481	Philip Hamzik	617-646-8300
75857	Kirsten Weigel-Van Aken	202-350-2799
75967	Diana Borgas	(612) 339-3061
76050	Anant Saraswat	617-646-8187
76246	Adam Zeiger	617-646-8485
76538	Elizabeth Boehm	617-646-8000
76669	William Czaplyski	617-646-8494
76736	Michele Moresco	617-646-8000
76749	Danielle Samblanet	617-646-8565
76803	Amanda Varrichione	617-646-8161
76839	Jessica Von Reyn	617-646-8000
77021	Nathan Jacobs	617-646-8557
77065	Anne Weeks	617-646-8031
77265	Lingyin Ge	617-646-8199
77456	Saad Alam	617-646-8503
77641	Joseph Bowler	617-646-8393
77692	Elizabeth Mulski	617-646-8352
78514	Harrison Shecter	617-646-8183
78555	Andrew Varrenti	617-646-8314
78667	Flora Luo	617-646-8591
79027	Sarah Schlotter	617-646-8269
79358	Evan Jones	617-646-8000
79399	Andrew Maher	617-646-8596
79628	Tyler Goddard	617-646-8306
79725	Jeffrey Harrigan	617-646-8418
79773	Roshan Plamthottam	617-646-8770
79827	Charlotte Stewart-Sloan	617-646-8341
80263	Shangxing Lu	202-663-6000
80312	Samuel Doskocil	617-646-8198
80320	John Hovestadt	617-646-8348
80331	John Otterbein	908-420-6574
80350	Andrew Mathis	617-646-8562
80358	Colin Buss	617-646-8159
80498	Steven Hannigan	617-646-8573
80639	Edward Stanton	617-646-8873
80711	Kevin Chancellor	617-646-8373
80731	Samuel Kim	617-646-8000
81128	William Lindemann	617-646-8535
81205	Claire Lidston	617-646-8426
81429	Kylee Prosser	617-646-8590
81469	Victoria Julian	617-646-8495
81655	Jill Ryan	978-210-9065
81910	Conor Kavanagh	781-927-8679
81968	Joseph Noreika	212-849-3346
82138	Benjamin Walsh	617-646-8213
82211	Andrew Schlaus	212-849-3337
82354	Allison Mayne	617-646-8000
82491	Evan Bender	212-849-3351
82753	Adrienne Zagieboylo	617-646-8771
83072	Max Zegers	617-646-8660
83077	Samantha Collins	617-646-8564
83258	Karen Cruz	617-646-8444

Proceeding Documents

132

Order: ORDER Granting Patent Owner’s Motion for Withdrawal and Substitution of Coun ORDER

2026-09-14 FILING PARTY: BOARD

Download

Pfizer's Notice of Deposition of George Zhanel NOTICE

2026-09-11 FILING PARTY: PETITIONER

Download

Patent Owner's Motion for Withdrawal and Substitution of Counsel MOTION

2026-08-31 FILING PARTY: PATENT OWNER

Download

Patent Owner's Second Updated Mandatory Notices NOTICE

2026-08-24 FILING PARTY: PATENT OWNER

Download

Patent Owner's Updated Power of Attorney NOTICE

2026-08-24 FILING PARTY: PATENT OWNER

Download

Pfizer Inc. vs. Pogona, LLC

Proceeding Overview

Parties & Counsel

Petitioner

Pfizer Inc.

Represented By

Patent Owner / Respondent

Pogona, LLC

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Order: ORDER Granting Patent Owner’s Motion for Withdrawal and Substitution of Coun ORDER

Pfizer's Notice of Deposition of George Zhanel NOTICE

Patent Owner's Motion for Withdrawal and Substitution of Counsel MOTION

Patent Owner's Second Updated Mandatory Notices NOTICE

Patent Owner's Updated Power of Attorney NOTICE

Ex. 2050 Declaration in Support of Patent Owner's Supplemental Evidence in Response to the Objections to Evidence filed by Petitioner Exhibit

Patent Owner's Updated Exhibit List NOTICE

Order: DECISION Granting Petitioner’s Motion for Pro Hac Vice Admission of Yujung Rho 37 C.F.R. § 42.10 ORDER

Petitioner's Objections to Patent Owner's Evidence OTHER

Patent Owner's Updated Exhibit List NOTICE

VilaCorcoles PPSV23 MI Stroke BMCPublicHealth (2012) Exhibit

Diao PPSV23Review Vaccine (2016) Exhibit

Feldman NonSero JInfection (2014) Exhibit

Tomczyk ACIP PPSV23 (2014) Exhibit

G. Zhanel Declaration Exhibit

Imohl BMC (2015) Exhibit

Feikin PLOSMed SupplTable (2013) Exhibit

Rajam 15C 15B (2007) Exhibit

Deposition Transcript of L. Musey Exhibit

Olarte CID (2015) Exhibit

Rudolph DMID 6C (2013) Exhibit

LerouxRoels NonSero Vaccine (2014) Exhibit

Findlow (2016) Exhibit

Park 6C JCM (2007) Exhibit

Steens Pneumococcal vaccine recommendations (2014) Exhibit

Nuorti ACIP PPSV23 MMWR (2010) Exhibit

Key Factors that Affect the Rate of Reactions (2014) Exhibit

Metcalf CMI (2016) Exhibit

Jin sero34 BMCPeds (2016) Exhibit

L. Defilippi Curriculum Vitae Exhibit

Pichichero NonSero HumVaccImmuno (2016) Exhibit

Cooper 6C Vaccine (2011) Exhibit

G. Zhanel Curriculum Vitae Exhibit

Feikin PLOSMed (2013) Exhibit

Choi serotype3 (2016) Exhibit

CHEMICAL ADDA, Classification of Variables in Chemical Process Control Exhibit

Patent Owner's Response RESPONSE

Andrews LID (2014) Exhibit

Marsh Vaccine 16F (2007) Exhibit

Lamontagne PPSV23 AMI CMAJ (2008) Exhibit

Chiang Vaccine (2014) Exhibit

L. Defilippi Declaration Exhibit

Rosch NonSero HumVaccImmuno (2014) Exhibit

Updated Power of Attorney for Petitioner Pfizer Inc. NOTICE

Declaration of Yujung Rho in support of Motion for Pro Hac Vice Admission Exhibit

Second Updated Mandatory Notice for Petitioner Pfizer Inc. NOTICE

Motion for Pro Hac Vice Admission of Yujung Rho MOTION

Patent Owner's Notice of Deposition NOTICE

Patent Owner's Updated Exhibit List NOTICE

Declaration in Support of Patent Owner’s Supplemental Evidence in Response to the Objections to Preliminary Evidence filed by Petitioner Exhibit

SCHEDULING ORDER ORDER

Petitioner Pfizer Inc.’s Objections to Patent Owner’s Preliminary Evidence OTHER

Institution Decision: Grant DECISION

Director Discretionary Decision: Refer RESPONSE

Ex Parte Eckhardt Exhibit

Ex Parte Smith Appeal Exhibit

A. Fattom Declaration Exhibit

Patent Owner's Preliminary Response Under 35 U.S.C. § 313 AND 37 C.F.R. § 42.107 POPR

3Form Appeal Brief Exhibit

Santiesteban-Lores Study Exhibit

Patent Owner's Updated Exhibit List NOTICE

Ex parte Smith Exhibit

U.S. Patent No. 9,399,060 Exhibit

Petitioner Pfizer Inc.’s Opposition to Patent Owner’s Discretionary Denial Brief RESPONSE

Forrest (WO 2017/173415) Exhibit