Wednesday, July 8, 2026

Patent intelligence · US

US 6387979

Bonding composition

expired A61KA61K6/30
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 132
Patent details — US 6387979

Quick answer

US 6387979 (Bonding composition) is held by KURARAY CO., LTD.. Status: expired. Granted May 14, 2002. Expires May 9, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Applicant
KURARAY CO., LTD.
Grant date
Expiration
Claims
23
CPC classes
A61K, A61K6/30

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Frequently asked questions

What is US patent 6387979?

US 6387979 (Bonding composition) is held by KURARAY CO., LTD.. Status: expired. Granted May 14, 2002. Expires May 9, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6387979?

KURARAY CO., LTD. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 132 pharmaceutical patents for this assignee.

When does US 6387979 expire?

Our index shows an expiration date of May 9, 2022 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.