Granted Patent
Utility
US 6,607,175 · App. 09/709,894
Media control valve
Inventors:
Phuong Taylor Nguyen, Robert E. Thompson, Joshua J. Kimmel
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Nov 10, 2000
Inventors
Phuong Taylor Nguyen
Robert E. Thompson
Joshua J. Kimmel
Assignee (at issue)
United States Filter 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.