Granted Patent
Utility
US 6,585,989 · App. 09/957,959
Mixtures of phenolic and inorganic materials with antimicrobial activity
Inventors:
Heinz Herbst, Urs Stadler
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Sep 21, 2001
Inventors
Heinz Herbst
Urs Stadler
Assignee (at issue)
Ciba Specialty Chemicals 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.