Patent intelligence · US
US 6514988
Condensed-ring thiophene derivatives, their production and use
Condensed-ring thiophene derivatives, their production and use
Patent details — US 6514988
- Jurisdiction
- US
- Status
- expired
- Grant date
- Feb 4, 2003
- Expiration
- Jan 30, 2023
- Applicant
- Takeda Chemical Industries Ltd.
- Claims
- 4
- CPC classes
- A61P, A61P5/04, A61P5/24
Quick answer
US 6514988 (Condensed-ring thiophene derivatives, their production and use) is held by Takeda Chemical Industries Ltd.. Status: expired. Granted Feb 4, 2003. Expires Jan 30, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Expiration
- Claims
- 4
- CPC classes
- A61P, A61P5/04, A61P5/24
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Frequently asked questions
What is US patent 6514988?
US 6514988 (Condensed-ring thiophene derivatives, their production and use) is held by Takeda Chemical Industries Ltd.. Status: expired. Granted Feb 4, 2003. Expires Jan 30, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Who owns US 6514988?
Takeda Chemical Industries Ltd. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 1,436 pharmaceutical patents for this assignee.
When does US 6514988 expire?
Our index shows an expiration date of Jan 30, 2023 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.