Granted Patent
Utility
US 6,034,152 · App. 09/049,079
Plaque-inhibiting composites
Inventors:
Bernd K. Burger, Bernd Gangnus, Rainer Guggenberger
Patented Case
View Patent ↗
Granted: Mar 7, 2000
Filed: Mar 27, 1998
Inventors
Bernd K. Burger
Bernd Gangnus
Rainer Guggenberger
Assignees (at issue)
Thera Patent GmbH & Co. KG
Gesellschaft fur industrielle Schutzrechte
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.