Granted Patent
Utility
US 6,061,908 · App. 08/928,311
Energy-efficient grinding rolls for coal pulverizers
Inventors:
Brian P. DeMarey, James F. Durant, Martin J. Kozlak, Robert S. Prairie, Reed S. C. Rogers, Anthony J. Rooney, Gregory R. Strich
Patented Case
View Patent ↗
Granted: May 16, 2000
Filed: Sep 12, 1997
Inventors
Brian P. DeMarey
James F. Durant
Martin J. Kozlak
Robert S. Prairie
Reed S. C. Rogers
Anthony J. Rooney
Gregory R. Strich
Assignee (at issue)
Combustion Engineering, 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.