Granted Patent
Utility
US 6,696,193 · App. 09/920,914
Manifold attachment system for a fuel cell stack
Inventors:
Stanley P. Bonk, Xiaoguang Yu
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Aug 2, 2001
Inventors
Stanley P. Bonk
Xiaoguang Yu
Assignee (at issue)
UTC Fuel Cells, LLC
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.