Patent · US Active

Polymorphs of bromfenac sodium and methods for preparing bromfenac sodium polymorphs

US9216947B2 · kind B2 · utility

1Cited by

6References

36Claims

0Family size

Assignee

Johnson Matthey Public Limited Company · GB

Inventors

Saroop Singh Matharu · Shirley, US
Gurijala Venu Reddy · Lancaster, US
James J. Mencel · North Wales, US
Xiaoyong Sun · Acton, US

Key dates

Filing date	Jun 24, 2013
Grant date	Dec 22, 2015
Priority date	—
Expiry date	Jun 24, 2033

Classification

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

Abstract

Different polymorphs of bromfenac sodium may be prepared and interconverted using crystallization/recrystallization, drying and/or hydration techniques.

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