Patent intelligence ยท US
US 6180791
Synthesis of 8-substituted xanthines
Synthesis of 8-substituted xanthines
Patent details โ US 6180791
- Jurisdiction
- US
- Status
- expired
- Grant date
- Jan 30, 2001
- Expiration
- Jan 25, 2021
- Applicant
- BEECHAM GROUP PLC [US]
- CPC classes
- A61K 31/ 52 A I, A61K 31/ 522 A I, A61K 31/ 535 A I, A61K 31/ 5377 A I
Quick answer
US 6180791 (Synthesis of 8-substituted xanthines) is held by BEECHAM GROUP PLC [US]. Status: expired. Granted Jan 30, 2001. Expires Jan 25, 2021 (0 years remaining) โ relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- BEECHAM GROUP PLC [US]
- Grant date
- Expiration
- Claims
- โ
- CPC classes
- A61K 31/ 52 A I, A61K 31/ 522 A I, A61K 31/ 535 A I, A61K 31/ 5377 A I, A61K/3152, A61K31/52
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Frequently asked questions
What is US patent 6180791?
US 6180791 (Synthesis of 8-substituted xanthines) is held by BEECHAM GROUP PLC [US]. Status: expired. Granted Jan 30, 2001. Expires Jan 25, 2021 (0 years remaining) โ relevant for patent-cliff and LOE planning.
Who owns US 6180791?
BEECHAM GROUP PLC [US] is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 25 pharmaceutical patents for this assignee.
When does US 6180791 expire?
Our index shows an expiration date of Jan 25, 2021 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.