Saturday, July 11, 2026

Patent intelligence · US

US 6013256

Method of preventing acute rejection following solid organ transplantation

expired A61KA61K2039/505A61K38/00A61K39/39533
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 201
Patent details — US 6013256
Jurisdiction
US
Status
expired
Grant date
Jan 11, 2000
Expiration
Jan 6, 2020
Claims
23
CPC classes
A61K, A61K2039/505, A61K38/00, A61K39/39533
View on Google Patents ↗

Quick answer

US 6013256 (Method of preventing acute rejection following solid organ transplantation) is held by Protein Design Labs, Inc.. Status: expired. Granted Jan 11, 2000. Expires Jan 6, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
23
CPC classes
A61K, A61K2039/505, A61K38/00, A61K39/39533, A61K39/39541, A61P

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Frequently asked questions

What is US patent 6013256?

US 6013256 (Method of preventing acute rejection following solid organ transplantation) is held by Protein Design Labs, Inc.. Status: expired. Granted Jan 11, 2000. Expires Jan 6, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6013256?

Protein Design Labs, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 201 pharmaceutical patents for this assignee.

When does US 6013256 expire?

Our index shows an expiration date of Jan 6, 2020 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.