Wednesday, July 8, 2026

Patent intelligence · US

US 6268350

Polynucleotides for inhibiting metastasis and tumor cell growth

expired A61KA61K38/177A61K48/00A61P
Status expired
Linked drugs 3
Pipeline programs 6
Years to expiry 0
Applicant portfolio 72
Patent details — US 6268350
Jurisdiction
US
Status
expired
Grant date
Jul 31, 2001
Expiration
Jul 26, 2021
Applicant
BioCrystal, Ltd.
Claims
10
CPC classes
A61K, A61K38/177, A61K48/00, A61P
View on Google Patents ↗

Quick answer

US 6268350 (Polynucleotides for inhibiting metastasis and tumor cell growth) is held by BioCrystal, Ltd.. Status: expired. Granted Jul 31, 2001. Expires Jul 26, 2021 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Applicant
BioCrystal, Ltd.
Grant date
Expiration
Claims
10
CPC classes
A61K, A61K38/177, A61K48/00, A61P, A61P35/04

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Frequently asked questions

What is US patent 6268350?

US 6268350 (Polynucleotides for inhibiting metastasis and tumor cell growth) is held by BioCrystal, Ltd.. Status: expired. Granted Jul 31, 2001. Expires Jul 26, 2021 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6268350?

BioCrystal, Ltd. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 72 pharmaceutical patents for this assignee.

When does US 6268350 expire?

Our index shows an expiration date of Jul 26, 2021 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.