Wednesday, June 10, 2026

Patent intelligence · US

US 6670148

Compositions comprising bioactive peptides prepared without formation of native disulfide bonds

expired A61PA61P37/00
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 94
Patent details — US 6670148

Quick answer

US 6670148 (Compositions comprising bioactive peptides prepared without formation of native disulfide bonds) is held by Biotherapeutics, Inc.. Status: expired. Granted Dec 30, 2003. Expires Dec 25, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
9
CPC classes
A61P, A61P37/00

More from Biotherapeutics, Inc.

Related pharmaceutical patents in our USPTO index.

  1. US 12343380

    Expansion of TILs utilizing AKT pathways inhibitors

    Iovance Biotherapeutics, Inc. · Expires Jun 26, 2045

    granted
  2. US 12280140

    Processes for production of tumor infiltrating lymphocytes and uses of the same in immunotherapy

    Iovance Biotherapeutics, Inc. · Expires Apr 17, 2045

    granted
  3. US 12233075

    Remnant tumor infiltrating lymphocytes and methods of preparing and using the same

    Iovance Biotherapeutics, Inc. · Expires Feb 20, 2045

    granted
  4. US 12230378

    Systems and methods for coordinating manufacturing of cells for patient-specific immunotherapy

    Iovance Biotherapeutics, Inc. · Expires Feb 13, 2045

    granted
  5. US 12226434

    Processes for production of tumor infiltrating lymphocytes and uses of same in immunotherapy

    Iovance Biotherapeutics, Inc. · Expires Feb 13, 2045

    granted
  6. US 12230379

    Systems and methods for coordinating manufacturing of cells for patient-specific immunotherapy

    Iovance Biotherapeutics, Inc. · Expires Feb 13, 2045

    granted
  7. US 12194061

    Processes for production of tumor infiltrating lymphocytes and uses of same in immunotherapy

    Iovance Biotherapeutics, Inc. · Expires Jan 9, 2045

    granted
  8. US 12188048

    Restimulation of cryopreserved tumor infiltrating lymphocytes

    Iovance Biotherapeutics, Inc. · Expires Jan 2, 2045

    granted

Frequently asked questions

What is US patent 6670148?

US 6670148 (Compositions comprising bioactive peptides prepared without formation of native disulfide bonds) is held by Biotherapeutics, Inc.. Status: expired. Granted Dec 30, 2003. Expires Dec 25, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6670148?

Biotherapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 94 pharmaceutical patents for this assignee.

When does US 6670148 expire?

Our index shows an expiration date of Dec 25, 2023 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.