Granted Patent
Utility
US 6,064,628 · App. 08/467,886
Ultrasonic processes and circuits for performing them
Inventors:
Volkmar Uhlendorf, Thomas Fritzsch, Joachim Siegert
Patented Case
View Patent ↗
Granted: May 16, 2000
Filed: Jun 6, 1995
Inventors
Volkmar Uhlendorf
Thomas Fritzsch
Joachim Siegert
Assignee (at issue)
SCHERING 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.