Granted Patent
Utility
US 6,227,150 · App. 09/542,557
Load based control system for active leakage control in air preheater
Inventors:
Harlan E. Finnemore, Danny K. Hall, Alan G. Marshall, Robert J. Rausa, Kent E. Ritter
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Apr 3, 2000
Inventors
Harlan E. Finnemore
Danny K. Hall
Alan G. Marshall
Robert J. Rausa
Kent E. Ritter
Assignee (at issue)
ABB Air Preheater 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.