Granted Patent
Utility
US 5,330,556 · App. 07/939,917
Method for treating gas and particulate solids in a fluid bed
Inventors:
Gregory J. Hardie, John M. Ganser, Ian D. Webb, Timo Hyppanen, Karl Myohanen, Ismo Nopanen
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Sep 3, 1992
Inventors
Gregory J. Hardie
John M. Ganser
Ian D. Webb
Timo Hyppanen
Karl Myohanen
Ismo Nopanen
Assignees (at issue)
Hismelt Corporation PTY. Limited
Ahlstrom 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.