Patent · US Active

Pharmaceutically acceptable salts and polymorphic forms of hydrocodone benzoic acid enol ester and processes for making same

US10870654B2 · kind B2 · utility

0Cited by

6References

11Claims

0Family size

Assignee

KEMPHARM, INC. · US

Inventors

Travis Mickle · Four Corners, US
Sven Guenther · Coralville, US
Christal Mickle · Charlottesville, US
Guochen Chi · Coralville, US
Jaroslaw Kanski · Blacksburg, US
Andrea K. Martin · Fincastle, US
Bindu Bera · Blacksburg, US

Key dates

Filing date	Mar 18, 2019
Grant date	Dec 22, 2020
Priority date	—
Expiry date	Mar 18, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/13
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Compositions comprising hydrocodone benzoic acid enol ester to form novel prodrugs including hydrocodone benzoic acid enol ester salts, and various polymorphs. Also provided are processes for the preparation of hydrocodone benzoic acid enol ester salts, and various polymorphs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.