Granted Patent
Utility
US 5,477,701 · App. 08/433,594
Apparatus and method for mass flow control of a working fluid
Inventors:
Richard L. Kenyon, Roy M. Yabuki, Chester D. Campbell, Sandra L. Harper, Michael Nolan, Virender Jain, Alan Matthies
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: May 3, 1995
Inventors
Richard L. Kenyon
Roy M. Yabuki
Chester D. Campbell
Sandra L. Harper
Michael Nolan
Virender Jain
Alan Matthies
Assignee (at issue)
Parker-Hannifin 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.