Friday, July 10, 2026

Patent intelligence · US

US 6150508

Monoclonal antibodies specific for the extracellular domain of prostate-specific membrane antigen

expired A61KA61K38/00A61PA61P13/08
Status expired
Linked drugs 2
Pipeline programs 6
Years to expiry 0
Applicant portfolio 595
Patent details — US 6150508
Jurisdiction
US
Status
expired
Grant date
Nov 21, 2000
Expiration
Nov 16, 2020
Claims
16
CPC classes
A61K, A61K38/00, A61P, A61P13/08
View on Google Patents ↗

Quick answer

US 6150508 (Monoclonal antibodies specific for the extracellular domain of prostate-specific membrane antigen) is held by Northwest Biotherapeutics, Inc.. Status: expired. Granted Nov 21, 2000. Expires Nov 16, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
16
CPC classes
A61K, A61K38/00, A61P, A61P13/08, A61P35/00

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Frequently asked questions

What is US patent 6150508?

US 6150508 (Monoclonal antibodies specific for the extracellular domain of prostate-specific membrane antigen) is held by Northwest Biotherapeutics, Inc.. Status: expired. Granted Nov 21, 2000. Expires Nov 16, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6150508?

Northwest Biotherapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 595 pharmaceutical patents for this assignee.

When does US 6150508 expire?

Our index shows an expiration date of Nov 16, 2020 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.