Saturday, July 11, 2026

Patent intelligence · US

US 6887862

Method for improving treatment selectivity and efficacy using intravascular photodynamic therapy

expired A61KA61K41/0071A61K41/0076
Status expired
Linked drugs 2
Pipeline programs 6
Years to expiry 0
Applicant portfolio 308
Patent details — US 6887862
Jurisdiction
US
Status
expired
Grant date
May 3, 2005
Expiration
Apr 28, 2025
Claims
59
CPC classes
A61K, A61K41/0071, A61K41/0076
View on Google Patents ↗

Quick answer

US 6887862 (Method for improving treatment selectivity and efficacy using intravascular photodynamic therapy) is held by Miravant Systems, Inc.. Status: expired. Granted May 3, 2005. Expires Apr 28, 2025 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
59
CPC classes
A61K, A61K41/0071, A61K41/0076

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Frequently asked questions

What is US patent 6887862?

US 6887862 (Method for improving treatment selectivity and efficacy using intravascular photodynamic therapy) is held by Miravant Systems, Inc.. Status: expired. Granted May 3, 2005. Expires Apr 28, 2025 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6887862?

Miravant Systems, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 308 pharmaceutical patents for this assignee.

When does US 6887862 expire?

Our index shows an expiration date of Apr 28, 2025 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.