Granted Patent
Utility
US 6,335,413 · App. 09/485,069
Hardenable mass with silane dendrimers
Inventors:
Joachim W. Zech, Gunther Lechner
Patented Case
View Patent ↗
Granted: Jan 1, 2002
Filed: Feb 3, 2000
Inventors
Joachim W. Zech
Gunther Lechner
Assignee (at issue)
ESPE Dental 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.