Granted Patent
Utility
US 6,076,554 · App. 09/320,313
Multiport plug valve with selectable port exclusion
Inventors:
Robert M. Jensen, Edward C. Teter
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: May 26, 1999
Inventors
Robert M. Jensen
Edward C. Teter
Assignee (at issue)
H-TECH 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.