CSPC Pharmaceutical Group Limited et al. vs. Ipsen Biopharm Ltd. et al.

Explore the PTAB proceeding IPR2025-00505 filed by CSPC Pharmaceutical Group Limited et al. on 2025-01-17. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00505

Filing Date

2025-01-17

Accorded Filing Date

2025-01-17

Institution Decision Date

2025-08-14

Last Modified Date

2026-09-15

Proceeding Type

IPR

Termination Date

2026-08-13

Trial Status

Final Written Decision

Parties & Counsel

Petitioner

CSPC Pharmaceutical Group Limited et al.

Represented By

Toft, Lukaset 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

200

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

Download

Other: Hearing transcript OTHER

2026-08-12 FILING PARTY: BOARD

Download

Petitioner's Supplemental Brief OTHER

2026-05-29 FILING PARTY: PETITIONER

Download

Patent Owner's Supplemental Briefing OTHER

2026-05-29 FILING PARTY: PATENT OWNER

Download

ORDER 37 C.F.R. § 42.5 ORDER

2026-05-21 FILING PARTY: BOARD

Download

CSPC Pharmaceutical Group Limited et al. vs. Ipsen Biopharm Ltd. et al.

Proceeding Overview

Parties & Counsel

Petitioner

CSPC Pharmaceutical Group Limited et al.

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

Other: Hearing transcript OTHER

Petitioner's Supplemental Brief OTHER

Patent Owner's Supplemental Briefing OTHER

ORDER 37 C.F.R. § 42.5 ORDER

Patent Owner's Demonstratives Exhibit

Petitioners' Oral Argument Demonstratives Exhibit

Patent Owner's Corrected Demonstratives Exhibit

Petitioner's Corrected Demonstratives Exhibit

Patent Owner's Reply in Support of its Motion to Exclude REPLY

Petitioners' Reply on Motion to Exclude REPLY

Email Exhibit

Order Conduct of Proceeding ORDER

Corrected Camptosar FDA Label (2006) Exhibit

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

Petitioners' Supplemental Response Exhibit

Petitioners' Opposition to Motion to Exclude OPPOSITION

Toft Declaration Exhibit

Exhibit 1004A - Translation of Conroy Protocol Exhibit

Order: Setting Oral Argument 37 C.F.R. sec. 42.70 ORDER

Patent Owner's Motion to Exclude MOTION

Petitioner's Motion to Exclude MOTION

Patent Owner's Request for Oral Argument OTHER

Petitioners' Request for Oral Argument OTHER

Patent Owner's Sur-Reply OTHER

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

Patent Owner's Objections to Supplemental Evidence OTHER

Panel Change Order ORDER

Patent Owner's Objections to Evidence in Petitioners' Reply NOTICE

NCCN’s June 2023 Panel Discussions Exhibit

Petitioners' Response to Patent Owner's Request for Discretionary Denial of Institution REPLYTOOPP

Ipsen’s January 20, 2023 NCCN Guidelines Submission Exhibit

Ipsen’s September 12, 2023 NCCN Guidelines Submission Exhibit

Chia Jie Tan et al., Cost-Effectiveness of NALIRIFOX Compared to Other First-Line Exhibit

2024 Open Payments Records for Dr. Oberstein Exhibit

Petitioners' Motion to Seal MOTION

Dr. Oberstein Deposition Transcript Exhibit

Special Fraud Alert: Speaker Programs (Nov. 16, 2020) Exhibit

NCCN’s January 2024 Panel Discussions Exhibit

Video of Panel Interview with Dr. Oberstein Exhibit

Page Vault Capture of Exhibit 1211 website Exhibit

Affidavit of Capture of Exhibits 1211-1212 Exhibit

Eran Sadot et al., FOLFIRINOX Induction Therapy for Stage 3 Pancreatic Adenocarcinoma Exhibit

Transcript of Exhibit 1211 video Exhibit

ORDER Granting Patent Owner’s Motions for Pro Hac Vice Admission of Elizabeth Murphy and Ross Misskelley 37 C.F.R. § 42.10 ORDER

Declaration in Support of PHV - Elizabeth Murphy Exhibit

Motion for PHV Admission - Elizabeth Murphy MOTION

Motion for PHV Admission - Ross Misskelley MOTION

Declaration in Support of PHV - Ross Misskelley Exhibit

Notice of Deposition of Dr. Paul E. Oberstein NOTICE

Joint Stipulation to Modify Due Dates 2 and 3 of the Scheduling Order OTHER

Amended Notice of Deposition of Dr. Paul E. Oberstein NOTICE

Order: Granting PHV Motion ORDER

Declaration of Howard S. Suh in Support of Motion for Admission Pro Hac Vice Exhibit

Petitioners' Motion for Admission Pro Hac Vice of Howard S. Suh MOTION

Petitioner's Updated Mandatory Notices NOTICE

Ex. 2058 Exhibit

Ex. 2069 Exhibit

Patent Owner's Current Exhibit List NOTICE

Ex. 2065 Exhibit

Ex. 2048 Exhibit

Ex. 2047 Exhibit

Ex. 2039 Exhibit

Ex. 2059 Exhibit

Ex. 2046 Exhibit

Ex. 2064 Exhibit