Wednesday, July 8, 2026

Patent intelligence · US

US 6149891

X-ray contrast medium and method for protecting against harmful effects thereof

expired A61KA61K45/06A61K49/0002A61K49/0452
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 2
Patent details — US 6149891
Jurisdiction
US
Status
expired
Grant date
Nov 21, 2000
Expiration
Nov 16, 2020
Claims
3
CPC classes
A61K, A61K45/06, A61K49/0002, A61K49/0452
View on Google Patents ↗

Quick answer

US 6149891 (X-ray contrast medium and method for protecting against harmful effects thereof) is held by Jade Holding Inc. B.V.I. Status: expired. Granted Nov 21, 2000. Expires Nov 16, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
3
CPC classes
A61K, A61K45/06, A61K49/0002, A61K49/0452

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Frequently asked questions

What is US patent 6149891?

US 6149891 (X-ray contrast medium and method for protecting against harmful effects thereof) is held by Jade Holding Inc. B.V.I. Status: expired. Granted Nov 21, 2000. Expires Nov 16, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6149891?

Jade Holding Inc. B.V.I is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 2 pharmaceutical patents for this assignee.

When does US 6149891 expire?

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