IP Library Granted Patent US 5,950,417
Granted Patent Utility
US 5,950,417 · App. 09/045,178

Topping combustor for low oxygen vitiated air streams

Inventors: Arichbald Stuart Robertson, Jr., Chongqing Lu, Zhen Fan
Patented Case View Patent ↗
Granted: Sep 14, 1999 Filed: Mar 20, 1998
Inventors
Arichbald Stuart Robertson, Jr.
Chongqing Lu
Zhen Fan
Assignee (at issue)
Foster Wheeler Energy International, Inc.

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.

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Quick Facts
Patent No.
US 5,950,417
App. No.
09/045,178
Filed
1998-03-20
Granted
1999-09-14
Kind
A