Granted Patent
Utility
US 5,620,935 · App. 08/664,010
Method for the regeneration of a catalyst
Inventor:
Georg Thiele
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Jun 14, 1996
Inventor
Georg Thiele
Assignee (at issue)
Degussa AG
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.