Granted Patent
Utility
US 6,098,653 · App. 09/171,938
Electrohydraulic control valve
Inventors:
Wolfgang Kobow, Werner Reinelt
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Oct 28, 1998
Inventors
Wolfgang Kobow
Werner Reinelt
Assignee (at issue)
DBT Automation GmbH
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.