Asserter profile

Ipsen Biopharm Ltd.

operating company10 patents now12 ever3 cases filed during tenure1 connection

Also seen as: IPSEN BIOPHARM LTD.

PTAB exposure

1of this entity’s patents have been challenged at PTAB (2 total proceedings). 1 had claims invalidated.

Final written decisions are public record. The invalidation grounds usually carry over as § 102 / § 103 ammunition in district court — see IPR estoppel.

Two-hop network

Edges marked ⚖️ overlap with at least one infringement suit filed during the receiving entity’s tenure with the patent. Bold-bordered = this entity. Red = NPE; orange = shell LLC; green = defensive aggregator; blue = operating company.

flowchart LR
    Nipsen_biopharm["Ipsen Biopharm Ltd."]
    Nmerrimack_pharmaceuticals["Merrimack Pharmaceuticals, Inc."]
    Nkalra_ashish_blanchette_sarah_f_fitzgerald_jonathan_basil_le["Kalra, Ashish; Blanchette, Sarah F.; Fi…"]
    Nkim_jaeyeon_niyikiza_clet_moyo_victor_bayever_eliel_fitzgera["KIM, Jaeyeon; NIYIKIZA, Clet; MOYO, Vic…"]
    Ndaryl_c_drummond_dmitri_b_kirpotin_mark_eamon_hayes_charles_["Daryl C. Drummond, Dmitri B. Kirpotin,…"]
    Ndaryl_c_drummond_dmitri_b_kirpotin_mark_e_hayes_charles_nobl["Daryl C. Drummond, Dmitri B. Kirpotin,…"]
    Njaeyeon_kim_clet_niyikiza_victor_moyo_eliel_bayever_jonathan["Jaeyeon Kim; Clet Niyikiza; Victor Moyo…"]
    Neliel_bayever_navreet_dhindsa_jonathan_basil_fitzgerald_pete["Eliel Bayever; Navreet Dhindsa; Jonatha…"]
    Nniyikiza_clet_moyo_victor_bayever_eliel_fitzgerald_jonathan_["Niyikiza, Clet; Moyo, Victor; Bayever,…"]
    Nu_s_bank_national_association_as_collateral_agent["U.S. BANK TRUST COMPANY, NATIONAL ASSOC…"]
    Nkim_jaeyeon["Kim, Jaeyeon"]
    Nu_s_bank_national_association["U.S. Bank National Association"]
    Ndhindsa_navreet_laivins_peter_n_bayever_eliel_fitzgerald_jon["Dhindsa, Navreet; Laivins, Peter N.; Ba…"]
    Nclet_niyikiza_victor_moyo_eliel_bayever_jonathan_basil_fitzg["Clet Niyikiza; Victor Moyo; Eliel Bayev…"]
    Nhermes_biosciences["Hermes Biosciences, Inc."]
    Neliel_bayever_navreet_dhindsa_jonathan_basil_fitzgerald_pete["Eliel Bayever; Navreet Dhindsa; Jonatha…"]
    Njaeyeon_kim["Jaeyeon Kim"]
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2017 · Assignment · 11344552"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2023 · Assignment · 12364691"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2021 · Assignment · 10993914"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals -->|"2017 · Assignment · 12059497"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals -->|"2017 · Assignment · 11369597"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2020 · Assignment · 10980795"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ Assignment · 10980795"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals -->|"2017 · Assignment · 9717724"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2017 · Change of Address · 9717724"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals -->|"2017 · Assignment · 9492442"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2017 · Change of Address · 9492442"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals -->|"2017 · Assignment · 9452162"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2017 · Change of Address · 9452162"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals -->|"2017 · Assignment · 9339497"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2017 · Change of Address · 9339497"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals -->|"2017 · Assignment · 8329213"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2017 · Change of Address · 8329213"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals -->|"2017 · Assignment · 9364473"| Nipsen_biopharm
    Nmerrimack_pharmaceuticals ==>|"⚖️ 2017 · Change of Address of Assignee · 9364473"| Nipsen_biopharm
    Nkalra_ashish_blanchette_sarah_f_fitzgerald_jonathan_basil_le -->|"2017 · Assignment · 11344552"| Nmerrimack_pharmaceuticals
    Nkim_jaeyeon_niyikiza_clet_moyo_victor_bayever_eliel_fitzgera -->|"2023 · Assignment · 12364691"| Nmerrimack_pharmaceuticals
    Ndaryl_c_drummond_dmitri_b_kirpotin_mark_eamon_hayes_charles_ -->|"2021 · Assignment · 10993914"| Nmerrimack_pharmaceuticals
    Ndaryl_c_drummond_dmitri_b_kirpotin_mark_e_hayes_charles_nobl -->|"2021 · Assignment · 12059497"| Nmerrimack_pharmaceuticals
    Nkim_jaeyeon_niyikiza_clet_moyo_victor_bayever_eliel_fitzgera -->|"2021 · Assignment · 11369597"| Nmerrimack_pharmaceuticals
    Njaeyeon_kim_clet_niyikiza_victor_moyo_eliel_bayever_jonathan -->|"2020 · Assignment · 10980795"| Nmerrimack_pharmaceuticals
    Neliel_bayever_navreet_dhindsa_jonathan_basil_fitzgerald_pete -->|"2017 · Assignment · 9717724"| Nmerrimack_pharmaceuticals
    Nniyikiza_clet_moyo_victor_bayever_eliel_fitzgerald_jonathan_ -->|"2015 · Assignment · 9492442"| Nmerrimack_pharmaceuticals
    Nmerrimack_pharmaceuticals -->|"2015 · Security Agreement · 9492442"| Nu_s_bank_national_association_as_collateral_agent
    Nkim_jaeyeon -->|"2016 · Assignment · 9492442"| Nmerrimack_pharmaceuticals
    Nu_s_bank_national_association -->|"2017 · Release · 9492442"| Nmerrimack_pharmaceuticals
    Nniyikiza_clet_moyo_victor_bayever_eliel_fitzgerald_jonathan_ -->|"2015 · Assignment · 9452162"| Nmerrimack_pharmaceuticals
    Ndhindsa_navreet_laivins_peter_n_bayever_eliel_fitzgerald_jon -->|"2015 · Assignment · 9452162"| Nmerrimack_pharmaceuticals
    Nmerrimack_pharmaceuticals -->|"2015 · Security Agreement · 9452162"| Nu_s_bank_national_association_as_collateral_agent
    Nkim_jaeyeon -->|"2016 · Assignment · 9452162"| Nmerrimack_pharmaceuticals
    Nu_s_bank_national_association -->|"2017 · Release · 9452162"| Nmerrimack_pharmaceuticals
    Nclet_niyikiza_victor_moyo_eliel_bayever_jonathan_basil_fitzg -->|"2015 · Assignment · 9339497"| Nmerrimack_pharmaceuticals
    Nmerrimack_pharmaceuticals -->|"2015 · Security Agreement · 9339497"| Nu_s_bank_national_association_as_collateral_agent
    Nkim_jaeyeon -->|"2016 · Assignment · 9339497"| Nmerrimack_pharmaceuticals
    Nu_s_bank_national_association -->|"2017 · Release · 9339497"| Nmerrimack_pharmaceuticals
    Nhermes_biosciences -->|"2012 · Merger · 8329213"| Nmerrimack_pharmaceuticals
    Nmerrimack_pharmaceuticals -->|"2015 · Security Interest · 8329213"| Nu_s_bank_national_association_as_collateral_agent
    Nu_s_bank_national_association_as_collateral_agent -->|"2017 · Release · 8329213"| Nmerrimack_pharmaceuticals
    Neliel_bayever_navreet_dhindsa_jonathan_basil_fitzgerald_pete -->|"2015 · Assignment · 9364473"| Nmerrimack_pharmaceuticals
    Nmerrimack_pharmaceuticals -->|"2015 · Security Agreement · 9364473"| Nu_s_bank_national_association_as_collateral_agent
    Njaeyeon_kim -->|"2016 · Assignment · 9364473"| Nmerrimack_pharmaceuticals
    Nu_s_bank_national_association_as_collateral_agent -->|"2017 · Release · 9364473"| Nmerrimack_pharmaceuticals
    classDef focal fill:#fef3c7,stroke:#92400e,stroke-width:3px,color:#1c1917
    classDef npe fill:#fee2e2,stroke:#be123c,stroke-width:2px,color:#1c1917
    classDef shell fill:#fed7aa,stroke:#9a3412,stroke-width:2px,color:#1c1917
    classDef defensive fill:#dcfce7,stroke:#15803d,stroke-width:2px,color:#1c1917
    classDef operating fill:#e0f2fe,stroke:#075985,stroke-width:1px,color:#1c1917
    class Nipsen_biopharm focal
    class Nmerrimack_pharmaceuticals operating
    class Nu_s_bank_national_association_as_collateral_agent operating
    class Nu_s_bank_national_association operating
    class Nhermes_biosciences operating

Patents currently held (10)

US 10980795? → present
- Ipsen Biopharmaceuticals, Inc. et al. v. Conjupro Biotherapeutics, Inc. et al. filed 2024-04-15
US 113445522017-02-07 → presentPTAB: claims invalidated
- IPSEN BIOPHARMACEUTICALS, INC. et al. v. CONJUPRO BIOTHERAPEUTICS, INC. et al. filed 2024-04-15
US 97177242017-05-17 → present
- Ipsen Biopharmaceuticals, Inc. et al. v. Conjupro Biotherapeutics, Inc. et al. filed 2024-04-15
US 94924422017-05-17 → present
- Ipsen Biopharmaceuticals, Inc. et al. v. Conjupro Biotherapeutics, Inc. et al. filed 2024-04-15
US 94521622017-05-17 → present
- Ipsen Biopharmaceuticals, Inc. et al. v. Conjupro Biotherapeutics, Inc. et al. filed 2024-04-15
US 93394972017-05-17 → present
- Ipsen Biopharmaceuticals, Inc. et al. v. Conjupro Biotherapeutics, Inc. et al. filed 2024-04-15
US 83292132017-05-17 → present
- Ipsen Biopharmaceuticals, Inc. et al. v. Conjupro Biotherapeutics, Inc. et al. filed 2024-04-15
US 93644732017-05-17 → present
- Ipsen Biopharmaceuticals, Inc. et al. v. Conjupro Biotherapeutics, Inc. et al. filed 2024-04-15
US 109939142021-03-22 → present
- Ipsen Biopharmaceuticals, Inc. et al. v. Conjupro Biotherapeutics, Inc. et al. filed 2024-04-15
US 123646912023-01-27 → present
- Ipsen Biopharmaceuticals, Inc. et al. v. Conjupro Biotherapeutics, Inc. et al. filed 2025-07-22

Patents previously held (2)

US 120594972017-01-07 → 2021-03-22
US 113695972017-04-03 → 2021-05-10

Connected entities (1)

Merrimack Pharmaceuticals, Inc.operating company12 patents · ⚖️ 11

Correspondent attorneys (1)

Attorneys / firms recorded with USPTO when this entity received a patent. Recurrence is the signal — many firms do both NPE and operating-company patent work, so a single appearance doesn’t mean much.

Elizabeth F. Allison· CHOATE HALL & STEWART1 appearance