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IP Verse

Fibrogen competitive analysis

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Latest oppositions filed by Fibrogen

Explore patent oppositions filed by Fibrogen against competitors, revealing strategic technology disputes and market positioning.

Last updated on: Nov 13, 2025
Patent NumberTitleApplicantOpposition Date

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EP3357911
Prolyl Hydroxylase Inhibitors And Methods Of UseAKEBIA THERAPEUTICSFeb 13, 2023

Latest patents of Fibrogen opposed by its competitors

Explore Fibrogen's recently opposed patents, revealing key competitive challenges and strategic patent disputes in the industry. Track oppositions filed by competitors to understand technology battlegrounds and assess potential risks.

Last updated on: Nov 13, 2025
Patent NumberPublication DateTitleTotal Oppositions
EP2298301
Nov 16, 2022Medicaments For Increasing Endogenous Erythropoietin (Epo)1
EP3470397
Dec 29, 2021Crystalline Forms Of A Prolyl Hydroxylase Inhibitor3
EP3003284
Feb 12, 2020Pharmaceutical Formulations Of A Hif Hydroxylase Inhibitor2
EP2324834
May 8, 2019Methods Of Increasing Endogenous Erythropoietin (Epo)1
EP2872488
Aug 22, 2018Crystalline Forms Of A Prolyl Hydroxylase Inhibitor3
EP2289531
Jul 4, 2018Medicaments For Increasing Endogenous Erythropoietine (Epo)2
EP2322153
Oct 8, 2014Use Of Hif Alpha Stabilizers For Enhancing Erythropoiesis4

Latest PTAB cases involving Fibrogen

Discover the latest PTAB cases involving Fibrogen, highlighting their recent legal challenges and patent disputes.

Last updated on: Nov 15, 2025
Proceeding NumberFiling DatePetitionerRespondentStatus

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IPR2016-01315Jun 30, 2016GLAXOSMITHKLINEFIBROGENInstitution Denied
IPR2016-01318Jun 30, 2016GLAXOSMITHKLINEFIBROGENInstitution Denied
IPR2016-01319Jun 30, 2016GLAXOSMITHKLINEFIBROGENInstitution Denied
IPR2016-01320Jun 30, 2016GLAXOSMITHKLINEFIBROGENInstitution Denied
IPR2016-01322Jun 30, 2016GLAXOSMITHKLINEFIBROGENInstitution Denied
IPR2016-01323Jun 30, 2016GLAXOSMITHKLINEFIBROGENInstitution Denied

Peer Comparison New

IP litigation analysis comparing Fibrogen with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Nov 13, 2025
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
FIBROGEN116 - 6
AKEBIA THERAPEUTICS43 - -
GLAXOSMITHKLINE29112812
SANDOZ1191619 -