Apotex Inc. vs. Ipsen Biopharm Ltd. et al.

Explore the PTAB proceeding IPR2025-01531 filed by Apotex Inc. on 2025-09-12. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01531

Filing Date

2025-09-12

Accorded Filing Date

2025-09-12

Institution Decision Date

2026-03-03

Last Modified Date

2026-09-15

Proceeding Type

IPR

Termination Date

2026-08-13

Trial Status

Final Written Decision

Parties & Counsel

Petitioner

Apotex Inc.

Represented By

Molenda, Johnet al

Patent Owner / Respondent

Ipsen Biopharm Ltd. et al.

Represented By

Glass, Jameset 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 15809815

Respondent Patent Number 11344552

External Links

Espacenet

Google Patents

Respondent Inventor Eliel Bayever et al

Respondent Tech Center TC 1600 - Biotechnology & Organic Chemistry

Address and Attorney/Agent Information

35 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name McNeill PLLC/Ipsen - Ipsen Bioscience, Inc.

Customer Number 153749

Address 245 First Street, 18th Floor, Cambridge, MA, 02142, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
41195	Arie Michelsohn	240-792-2692
41551	Lara Kelley	703-243-2007
43076	Fernando Salcedo	919-620-2000
43796	Rebecca Mcneill	617-489-0002
46512	Amy Schoenhard	240-802-2716
47057	Rebecca Scarr	414-377-3455
48070	Julie Heinrich	412-744-3850
50775	Heidi Dare	872-270-2996
50894	Elizabeth Doherty	925-200-4065
51401	Stephanie Amoroso	571-562-5278
52211	Deborah Herzfeld	703-536-1009
52596	Sarah Forsse	831-316-7539
56992	Mary Henninger	404-891-1400
57286	Maximilienne Giannelli	619-588-2849
61652	Karen Martin	781-482-0758
63460	David Lansky	516-514-1624
63718	Adam Breier	619-588-2849
64951	Rachel Slade	435-477-6535
66036	Michael Su	650-540-3304
66356	Mary Chlebowski	470-604-7001
66578	Shazi Jiang	520-492-8010
69258	Rebecca Simmons	339-707-7548
70240	Victoria Lee	732-704-3972
70247	Lauren Blakely	650-779-0002
70963	Jane Kuzelka	650-459-3887
72755	Ho Jung Cho	703-286-6125
75229	Kate Prybylowski	858-924-1776
78520	Genevieve Weber	458-227-9702
79298	Matthew Bellefleur	352-375-8100
79646	Sarah Kelly	434-207-2656
800109	Keun-Young Park	617-430-4740
80311	Jeffery Cornelison	224-262-2212
80563	Zachary Nora	609-262-7255
81619	Lauren Winkler	218-210-4504
82971	Elisa Maynor	617-430-4740885

Proceeding Documents

166

Final Written Decision: Final Written Decision Determining Some Challenged Claims Unpatentable 35 U.S.C. sec. 318a Granting Petitioners Motion to Seal (Paper 31 37 C.F.R. secs. 42.14, 42.54 Denying Petitioners Motion to Exclude Paper 43 37 C.F.R. sec. 42.64c Denying Patent Owners Motion to Exclude Paper 42 37 C.F.R. sec. 42.64c FINAL

2026-08-13 FILING PARTY: BOARD

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Order: DECISION Granting Petitioner’s Motion for Joinder 35 U.S.C. § 315(c); 37 C.F.R. § 42.122(b) ORDER

2026-03-12 FILING PARTY: BOARD

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Institution Decision: Grant DECISION

2026-03-03 FILING PARTY: BOARD

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Director Discretionary Decision: Refer RESPONSE

2026-01-16 FILING PARTY: BOARD

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1207

Ex. 1207 Exhibit

2025-12-23 FILING PARTY: PETITIONER

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Apotex Inc. vs. Ipsen Biopharm Ltd. et al.

Proceeding Overview

Parties & Counsel

Petitioner

Apotex Inc.

Represented By

Patent Owner / Respondent

Ipsen Biopharm Ltd. et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Order: DECISION Granting Petitioner’s Motion for Joinder 35 U.S.C. § 315(c); 37 C.F.R. § 42.122(b) ORDER

Institution Decision: Grant DECISION

Director Discretionary Decision: Refer RESPONSE

Ex. 1207 Exhibit

Ex. 1203 Exhibit

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

Ex. 1200 Exhibit

Ex. 1206 Exhibit

Ex. 1201 Exhibit

Ex. 1204 Exhibit

Ex. 1202 Exhibit

Ex. 1205 Exhibit

Motion to Withdraw Opposition to Apotex Motion for Joinder MOTION

Ex. 2034 Exhibit

Ex. 2019 Exhibit

Ex. 2024 Exhibit

Ex. 2033 Exhibit

Ex. 2032 Exhibit

Ex. 2020 Exhibit

Ex. 2022 Exhibit

Ex. 2026 Exhibit

Ex. 2037 Exhibit

Ex. 2035 Exhibit

Ex. 2016 Exhibit

Ex. 2021 Exhibit

Ex. 2030 Exhibit

Ex. 2036 Exhibit

Ex. 2018 Exhibit

Ex. 2027 Exhibit

Apotex's First Updated Mandatory Notices Under 37 C.F.R. 42.8 NOTICE

Ex. 2023 Exhibit

Ex. 2025 Exhibit

Ex. 2017 Exhibit

Ex. 2015 Exhibit

POPR POPR

Ex. 2031 Exhibit

Ex. 2029 Exhibit

Ex. 2038 Exhibit

Ex. 2028 Exhibit

Email Correspondence Exhibit

Ex. 2014 Exhibit

Ex. 2004 Exhibit

Ex. 2010 Exhibit

Ex. 2012 Exhibit

Ex. 2007 Exhibit

Ex. 2011 Exhibit

Ex. 2003 Exhibit

Ex. 2005 Exhibit

Patent Owner's Discretionary Denial Brief RESPONSE

Ex. 2001 Exhibit

Ex. 2008 Exhibit

Ex. 2006 Exhibit

Ex. 2009 Exhibit

Ex. 2013 Exhibit

Ex. 2002 Exhibit

Apotex's Reply to Patent Owner's Opposition to Apotex's Motion for Joinder REPLY

Notice: Power of Attorney NOTICE

Patent Owner's Opposition to Motion for Joinder OPPOSITION

Notice: Mandatory Notice NOTICE

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

Schroen Exhibit

Apotex's Motion for Joinder to Inter Partes Review of IPR2025-00505 MOTION

Wainberg (2021) Exhibit

Blazer Exhibit

U.S. Pat. No. 11,344,552 (Bayever) Exhibit