Granted Patent
Utility
US 6,477,891 · App. 09/897,357
Process for affinity viscosimetry and viscosimetric affinity sensor
Inventors:
Rudolf Ehwald, Karl-Ernst Ehwald, Andreas Thomas, Uwe Beyer
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jul 2, 2001
Inventors
Rudolf Ehwald
Karl-Ernst Ehwald
Andreas Thomas
Uwe Beyer
Assignee (at issue)
Disetronic Licensing 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.