Granted Patent
Utility
US 6,162,446 · App. 09/038,026
In-situ generation of zinc pyrithione in personal care compositions
Inventors:
Rahim Hani, George Polson
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Mar 11, 1998
Inventors
Rahim Hani
George Polson
Assignee (at issue)
Arch Chemicals, 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.