Wednesday, July 8, 2026

Patent intelligence · US

US 9475871

Treatment of cancer with elevated dosages of soluble FGFR1 fusion proteins

granted A61KA61K38/179A61K39/3955A61K45/06
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 10
Applicant portfolio 127
Patent details — US 9475871
Jurisdiction
US
Status
granted
Grant date
Oct 25, 2016
Expiration
Oct 20, 2036
Claims
22
CPC classes
A61K, A61K38/179, A61K39/3955, A61K45/06
View on Google Patents ↗

Quick answer

US 9475871 (Treatment of cancer with elevated dosages of soluble FGFR1 fusion proteins) is held by Five Prime Therapeutics, Inc.. Status: granted. Granted Oct 25, 2016. Expires Oct 20, 2036 (10 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
22
CPC classes
A61K, A61K38/179, A61K39/3955, A61K45/06, A61P, A61P35/00

More from Five Prime Therapeutics, Inc.

Related pharmaceutical patents in our USPTO index.

  1. US 12404275

    Pyrazolopyrazine derived compounds, pharmaceutical composition and use thereof

    PrimeGene (Beijing) Co., Ltd. · Expires Aug 28, 2045

    granted
  2. US 12383582

    Methods of treating chronic wounds with amniotic fluid having elevated levels of tissue inhibitors of matrix metalloproteinases

    Prime Merger Sub, LLC · Expires Aug 7, 2045

    granted
  3. US 12377115

    Combination immunotherapies for treatment of cancer

    PrimeVax Immuno-Oncology · Expires Jul 31, 2045

    granted
  4. US 12365719

    CD80 extracellular domain polypeptides and their use in cancer treatment

    Five Prime Therapeutics, Inc. · Expires Jul 17, 2045

    granted
  5. US 12319738

    Anti-FGFR2 antibodies in combination with chemotherapy agents in gastric cancer

    Five Prime Therapeutics, Inc. · Expires May 29, 2045

    granted
  6. US 12304898

    Quinolyl-containing compound and pharmaceutical composition, and use thereof

    PrimeGene (Beijing) Co., Ltd. · Expires May 15, 2045

    granted
  7. US 12234302

    Chitosan derivatives and methods for preparing the same

    PRIMEX EHF · Expires Feb 20, 2045

    granted
  8. US 12233119

    Composition for oral or nasal delivery of tetanus, diphtheria, and pertussis vaccine alone or in combination using neurotoxin associated proteins

    Prime Bio, Inc. · Expires Feb 20, 2045

    granted

Frequently asked questions

What is US patent 9475871?

US 9475871 (Treatment of cancer with elevated dosages of soluble FGFR1 fusion proteins) is held by Five Prime Therapeutics, Inc.. Status: granted. Granted Oct 25, 2016. Expires Oct 20, 2036 (10 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9475871?

Five Prime Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 127 pharmaceutical patents for this assignee.

When does US 9475871 expire?

Our index shows an expiration date of Oct 20, 2036 (10 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.