Patent intelligence · US
US 8530675
Process for the synthesis of 4,5,6,7-tetrachloro-3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (rose bengal) and related xanthenes
Process for the synthesis of 4,5,6,7-tetrachloro-3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (rose beng…
Patent details — US 8530675
- Jurisdiction
- US
- Status
- granted
- Grant date
- Sep 10, 2013
- Expiration
- Sep 5, 2033
- Applicant
- Provectus Pharmaceuticals, Inc.
- Claims
- 83
- CPC classes
- A61P, A61P1/00, A61P1/02, A61P11/00
Quick answer
US 8530675 (Process for the synthesis of 4,5,6,7-tetrachloro-3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (rose bengal) and related xanthenes) is held by Provectus Pharmaceuticals, Inc.. Status: granted. Granted Sep 10, 2013. Expires Sep 5, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- Provectus Pharmaceuticals, Inc.
- Grant date
- Expiration
- Claims
- 83
- CPC classes
- A61P, A61P1/00, A61P1/02, A61P11/00, A61P13/00, A61P15/00
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Frequently asked questions
What is US patent 8530675?
US 8530675 (Process for the synthesis of 4,5,6,7-tetrachloro-3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (rose bengal) and related xanthenes) is held by Provectus Pharmaceuticals, Inc.. Status: granted. Granted Sep 10, 2013. Expires Sep 5, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.
Who owns US 8530675?
Provectus Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 29 pharmaceutical patents for this assignee.
When does US 8530675 expire?
Our index shows an expiration date of Sep 5, 2033 (7 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.