Merck Sharp & Dohme LLC v. Surrozen Operating, Inc. et al. - PGR2026-00027

Explore the PTAB proceeding PGR2026-00027 filed by Merck Sharp & Dohme LLC against Surrozen Operating, Inc. et al. on Feb 12, 2026. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Case Details

Proceeding Number
PGR2026-00027
Filing Date
Feb 12, 2026
Petitioner
Merck Sharp & Dohme LLC
Respondent
Surrozen Operating, Inc. et al.
Status
Pending
Respondent Application Number
18361782
Respondent Tech Center
1600
Respondent Patent Number
12297278

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Proceeding Documents

The table below shows documents filed in the case, listing each document name, filing date, document type, and filing party. Tracking these filings indicates the activity of the parties involved in the case, and the types of documents filed can provide insights into the legal strategies being employed.

Document NameFiling DateCategoryFiling Party

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Notice: Patent Owner's Power of Attorney

Mar 5, 2026PAPERPATENT OWNER

Notice: Patent Owner's Mandatory Notice

Mar 5, 2026PAPERPATENT OWNER

Notice: Notice filing date accorded

Feb 23, 2026PAPERBOARD

12,297,278

Feb 12, 2026EXHIBITPETITIONER

WO 2016/040895 A1 (Garcia)

Feb 12, 2026EXHIBITPETITIONER

62/607,875

Feb 12, 2026EXHIBITPETITIONER

62/641,217

Feb 12, 2026EXHIBITPETITIONER

62/680,522

Feb 12, 2026EXHIBITPETITIONER

12,297,278 File History_Part 1 of 4

Feb 12, 2026EXHIBITPETITIONER

12,297,278 File History_Part 2 of 4

Feb 12, 2026EXHIBITPETITIONER

12,297,278 File History_Part 3 of 4

Feb 12, 2026EXHIBITPETITIONER

12,297,278 File History_Part 4 of 4

Feb 12, 2026EXHIBITPETITIONER

Ahmad 2012

Feb 12, 2026EXHIBITPETITIONER

Ahmadzadeh 2014

Feb 12, 2026EXHIBITPETITIONER

US 2017/0306029 A1 (Garcia US)

Feb 12, 2026EXHIBITPETITIONER

Wu 2007

Feb 12, 2026EXHIBITPETITIONER

Bera 1998

Feb 12, 2026EXHIBITPETITIONER

WO 2020/018445 A1

Feb 12, 2026EXHIBITPETITIONER

Bourhis 2010

Feb 12, 2026EXHIBITPETITIONER

Brinkmann 2017

Feb 12, 2026EXHIBITPETITIONER

Cuesta 2010

Feb 12, 2026EXHIBITPETITIONER

DeBruine 2017

Feb 12, 2026EXHIBITPETITIONER

DiGiammarino 2015

Feb 12, 2026EXHIBITPETITIONER

Dijksterhuis 2015

Feb 12, 2026EXHIBITPETITIONER

Gong 2010

Feb 12, 2026EXHIBITPETITIONER

Gonzalez-Sancho 2004

Feb 12, 2026EXHIBITPETITIONER

Gray 2013

Feb 12, 2026EXHIBITPETITIONER

Gregorieff 2005

Feb 12, 2026EXHIBITPETITIONER

Holmen 2002

Feb 12, 2026EXHIBITPETITIONER

Hoppler 2007

Feb 12, 2026EXHIBITPETITIONER

Janda 2012

Feb 12, 2026EXHIBITPETITIONER

Kahn 2014

Feb 12, 2026EXHIBITPETITIONER

Ke 2013

Feb 12, 2026EXHIBITPETITIONER

Kohn 2005

Feb 12, 2026EXHIBITPETITIONER

Kumar 2014

Feb 12, 2026EXHIBITPETITIONER

Kuroda 2012

Feb 12, 2026EXHIBITPETITIONER

Lescar 1995

Feb 12, 2026EXHIBITPETITIONER

Liu 2017

Feb 12, 2026EXHIBITPETITIONER

MacDonald 2010

Feb 12, 2026EXHIBITPETITIONER

MacDonald 2012

Feb 12, 2026EXHIBITPETITIONER

Maretto 2003

Feb 12, 2026EXHIBITPETITIONER

Mikels 2006

Feb 12, 2026EXHIBITPETITIONER

Nelson 2010

Feb 12, 2026EXHIBITPETITIONER

Niehrs 2012

Feb 12, 2026EXHIBITPETITIONER

Nusse 2017

Feb 12, 2026EXHIBITPETITIONER

Pedotti 2011

Feb 12, 2026EXHIBITPETITIONER

Rao 2010

Feb 12, 2026EXHIBITPETITIONER

Ren 2015

Feb 12, 2026EXHIBITPETITIONER

Spiess 2015

Feb 12, 2026EXHIBITPETITIONER

Stamos 2013

Feb 12, 2026EXHIBITPETITIONER

Tao 2019

Feb 12, 2026EXHIBITPETITIONER

van Rosmalen 2017

Feb 12, 2026EXHIBITPETITIONER

Wang 2016

Feb 12, 2026EXHIBITPETITIONER

Wesolowski 2009

Feb 12, 2026EXHIBITPETITIONER

Xu 2000

Feb 12, 2026EXHIBITPETITIONER

WO 2020/010308 A1 (Li)

Feb 12, 2026EXHIBITPETITIONER

Goel 2012

Feb 12, 2026EXHIBITPETITIONER

Bryja 2009

Feb 12, 2026EXHIBITPETITIONER

Tu 2007

Feb 12, 2026EXHIBITPETITIONER

Bannas 2017

Feb 12, 2026EXHIBITPETITIONER

FDA Press Release

Feb 12, 2026EXHIBITPETITIONER

11,773,171

Feb 12, 2026EXHIBITPETITIONER

de Lau 2011

Feb 12, 2026EXHIBITPETITIONER

McDonnell Declaration

Feb 12, 2026EXHIBITPETITIONER

Kahn Declaration

Feb 12, 2026EXHIBITPETITIONER

Janeway 2017

Feb 12, 2026EXHIBITPETITIONER

Petition for Post-Grant Review

Feb 12, 2026PAPERPETITIONER

Petitioner's Power of Attorney and Designation of Lead and Backup Counsel

Feb 12, 2026PAPERPETITIONER