Ascendis Pharma A/S et al. vs. BioMarin Pharmaceutical Inc.

Explore the PTAB proceeding PGR2026-00013 filed by Ascendis Pharma A/S et al. on 2025-11-24. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

PGR2026-00013

Filing Date

2025-11-24

Accorded Filing Date

2025-11-24

Institution Decision Date

2026-05-06

Last Modified Date

2026-09-30

Proceeding Type

PGR

Termination Date

2026-09-30

Trial Status

Terminated-Settled

Parties & Counsel

Petitioner

Ascendis Pharma A/S et al.

Represented By

Holman, Davidet al

Patent Owner / Respondent

BioMarin Pharmaceutical Inc.

Represented By

Modi, Naveenet 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 17811748

Respondent Patent Number 12233106

External Links

Espacenet

Google Patents

Respondent Inventor Jonathan Day et al

Respondent Tech Center TC 1600 - Biotechnology & Organic Chemistry

Address and Attorney/Agent Information

15 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Marshall, Gerstein & Borun LLP (Biomarin)

Customer Number 90849

Address 233 South Wacker Drive, 6300 Willis Tower, Chicago, IL, 60606, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
34824	Robert Gerstein	312-474-6300
35302	Greta Noland	312-474-6300
38153	David Gass	312-474-6300
45790	Heather Kissling	312-474-6300
45974	Luisa Bigornia	415-506-6700
48484	Sharon Sintich	312-474-6300
52664	Eric Brusca	312-474-6300
53066	Lynn Janulis	312-474-6300
53379	Katherine Neville	312-474-6300
56301	Jeanne Brashear	312-474-6300
57712	Shelley Danek	312-474-6300
61425	Christopher De Vry	415-842-8040
63549	Michael Allikian	312-474-6300
70948	Anand Viswanathan	415-842-8585
78795	Stefan Brooks	312-474-6300

Proceeding Documents

113

Termination Decision: Post-DI Settlement TERMINATE

2026-09-30 FILING PARTY: BOARD

Download

Joint Motion to Terminate MOTION

2026-09-24 FILING PARTY: PETITIONER

Download

Joint Request to Keep Settlement Agreement Confidential OTHER

2026-09-24 FILING PARTY: PETITIONER

Download

3001

E-mail authorizing motion to terminate Exhibit

2026-09-16 FILING PARTY: BOARD

Download

Stipulation to Revise Scheduling Order OTHER

2026-08-30 FILING PARTY: PATENT OWNER

Download

Ascendis Pharma A/S et al. vs. BioMarin Pharmaceutical Inc.

Proceeding Overview

Parties & Counsel

Petitioner

Ascendis Pharma A/S et al.

Represented By

Patent Owner / Respondent

BioMarin Pharmaceutical Inc.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Termination Decision: Post-DI Settlement TERMINATE

Joint Motion to Terminate MOTION

Joint Request to Keep Settlement Agreement Confidential OTHER

E-mail authorizing motion to terminate Exhibit

Stipulation to Revise Scheduling Order OTHER

Stipulation to Revise Scheduling Order OTHER

Order: ORDER Granting Patent Owner’s Motion for Pro Hac Vice Admission of Gabrielle Landes 37 C.F.R. § 42.10 ORDER

Stipulation to Revise Scheduling Order OTHER

Updated Power of Attorney for Patent Owner NOTICE

Patent Owner's Motion for Pro Hac Vice Admission of Gabrielle Landes MOTION

Exhibit 2019 Exhibit

Patent Owner's Notice of Deposition of Mary Jennifer Abuzzahab, M.D. NOTICE

SCHEDULING ORDER ORDER

Petitioner's Objections to Evidence OTHER

Patent Owner's Objections to Evidence OTHER

Institution Decision: Grant DECISION

Petitioner's Updated Mandatory Notices NOTICE

Director Discretionary Decision: Refer RESPONSE

Petitioner's Discretionary Denial Sur-Reply OTHER

Exhibit 2008 Exhibit

Patent Owner's Current List of Exhibits NOTICE

Authorized Reply in Support of Request for Discretionary Denial OTHER

Exhibit 2007 Exhibit

Email Correspondence Exhibit

EX1065 - Zydus Complaint Exhibit

EX1064 - RE48267 File History (Part 2 of 2) Exhibit

EX1071 - Locations Worldwide - Wacker Chemie AG Exhibit

EX1066 - Ascendis Pharma US Leadership Exhibit

EX1072 - DNJ ANDA Milestones - Cases Terminated Since 2023 - Docket Navigator (Annotated) Exhibit

EX1070 - Contact Us - Bachem Exhibit

EX1068 - Wacker Chemie AG Executive Board Exhibit

EX1064 - RE48267 File History (Part 1 of 2) Exhibit

Petitioner's Opposition to Discretionary Denial RESPONSE

EX1067 - Bachem Leadership Exhibit

EX1069 - Contact Us - Ascendis Pharma Exhibit

Exhibit 2006 Exhibit

Exhibit 2012 Exhibit

Exhibit 2015 Exhibit

Exhibit 2016 Exhibit

Patent Owner's Current List of Exhibits NOTICE

Exhibit 2014 Exhibit

Exhibit 2005 Exhibit

Exhibit 2013 Exhibit

Exhibit 2018 Exhibit

Exhibit 2011 Exhibit

Exhibit 2001 Exhibit

Patent Owner's Brief Requesting Discretionary Denial RESPONSE

Exhibit 2017 Exhibit

Exhibit 2004 Exhibit

Exhibit 2002 Exhibit

Notice: Power of Attorney NOTICE

Notice: Mandatory Notice NOTICE

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

EX1061 - Wiens 2015 Exhibit

EX1038 - Yasoda 2010 Exhibit

EX1006 - Pauli 2019 Exhibit

EX1058 - Burdan 2008 Exhibit

EX1055 - Hoover-Fong 2021 Exhibit

EX1025 - Mortier 2019 Exhibit

EX1002 - File History of U.S. Patent. No. 12,233,106 Exhibit

EX1008 - U.S. Patent No. 9,907,834 (Bullens) Exhibit

EX1004 - Dr. Abuzzahab CV Exhibit

EX1015 - Krakow 2015 Exhibit

EX1033 - FDA Neonatal Trial Guidance 2019 Exhibit

EX1014 - Su 2008 Exhibit