Granted Patent
Utility
US 6,489,486 · App. 09/765,268
2-hydroxyphenyl benzotriazoles as UV-A/B filters
Inventor:
Ulrich Huber
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Jan 18, 2001
Inventor
Ulrich Huber
Assignee (at issue)
Roche Vitamins Inc.
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.