Wednesday, July 8, 2026

Patent intelligence · US

US 6040167

Synthetic membrane vesicles containing functionally active fusion peptides as drug delivery systems

expired A61KA61K47/6839A61K47/6849A61K47/6913
Status expired
Years to expiry 0
Applicant portfolio 69
Patent details — US 6040167
Jurisdiction
US
Status
expired
Grant date
Mar 21, 2000
Expiration
Mar 16, 2020
Claims
39
CPC classes
A61K, A61K47/6839, A61K47/6849, A61K47/6913
View on Google Patents ↗

Quick answer

US 6040167 (Synthetic membrane vesicles containing functionally active fusion peptides as drug delivery systems) is held by Nika Health Products Limited. Status: expired. Granted Mar 21, 2000. Expires Mar 16, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
39
CPC classes
A61K, A61K47/6839, A61K47/6849, A61K47/6913, A61K9/1271, A61K9/1277

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Frequently asked questions

What is US patent 6040167?

US 6040167 (Synthetic membrane vesicles containing functionally active fusion peptides as drug delivery systems) is held by Nika Health Products Limited. Status: expired. Granted Mar 21, 2000. Expires Mar 16, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6040167?

Nika Health Products Limited is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 69 pharmaceutical patents for this assignee.

When does US 6040167 expire?

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