Granted Patent
Utility
US 6,403,642 · App. 09/638,837
Sulfur adsorbent for reducing onion or garlic breath odor
Inventor:
Kenneth A. Berg
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Aug 14, 2000
Inventor
Kenneth A. Berg
Assignee (at issue)
PQ 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.