Granted Patent
Utility
US 6,586,519 · App. 08/451,109
Thioether substituted hydroxybenzophenones and stabilized compositions
Inventors:
Joseph Suhadolnik, Carmen Hendricks, Roger Meuwly
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: May 25, 1995
Inventors
Joseph Suhadolnik
Carmen Hendricks
Roger Meuwly
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.