Granted Patent
Utility
US 6,121,198 · App. 09/317,752
Synergistic composition of biocides
Inventors:
Karen Winkowski, Techen Tsao
Patented Case
View Patent ↗
Granted: Sep 19, 2000
Filed: May 24, 1999
Inventors
Karen Winkowski
Techen Tsao
Assignee (at issue)
CREANOVA 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.