Patent · US Expired

Use of sunscreen combinations comprising, as essential constituent, amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations

US6387355B2 · kind B2 · utility

24Cited by

2References

14Claims

0Family size

Assignee

BASF SE

Inventors

Thomas Heidenfelder · Münstermaifeld, DE
Thorsten Habeck · Meckenheim, DE
Thomas Wunsch · Speyer, DE

Key dates

Filing date	Mar 7, 2001
Grant date	May 14, 2002
Priority date	—
Expiry date	Mar 7, 2021

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/59
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Use of sunscreen combinations comprising as essential constituent, amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations.

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