Granted Patent
Utility
US 5,869,030 · App. 08/693,080
Sunscreen compositions comprising micronized, insoluble organic UV absorbers
Inventors:
Walter Dumler, Peter Frankhauser, Helmut Luther
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Aug 12, 1996
Inventors
Walter Dumler
Peter Frankhauser
Helmut Luther
Assignee (at issue)
Ciba Specialty Chemicals Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.