Granted Patent
Utility
US 5,783,173 · App. 08/752,585
Stable sunscreen composition containing dibenzoylmethane derivative, E. G., PARSOL 1789, and C12, C16, C18, branched chain hydroxybenzoate and/or C12, C16, branched chain benzoate stabilizers/solubilizers
Inventors:
Craig A. Bonda, Steven P. Hopper
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Nov 21, 1996
Inventors
Craig A. Bonda
Steven P. Hopper
Assignee (at issue)
The C.P. Hall Company
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.