Patent · US Active

Ophthalmic compositions with an amphoteric surfactant and an anionic biopolymer

US9096819B2 · kind B2 · utility

2Cited by

18References

16Claims

0Family size

Assignee

BAUSCH & LOMB INCORPORATED · US

Inventors

Erning Xia · Penfield, US
Susan E. Burke · Batavia, US
Srini Venkatesh · Hudson, US
Vicki Barniak · Fairport, US
Praveen Tyle · Spring, US

Key dates

Filing date	Jan 31, 2008
Grant date	Aug 4, 2015
Priority date	—
Expiry date	Oct 2, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61L12/143
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Ophthalmic compositions that comprise 0.1 ppm to 50 ppm of a cationic antimicrobial component selected from the group consisting of biguanides, polymeric biguanides, quaternium ammonium compounds and any one mixture thereof; 0.005 wt. % to 2 wt. % of an anionic biopolymer; and 0.01 wt. % to 2 wt. % of an amphoteric surfactant of general formula I

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