Granted Patent
Utility
US 6,352,676 · App. 09/251,083
Abatement of F2 using small particle fluidized bed
Inventors:
Thomas Hsiao-Ling Hsiung, Howard Paul Withers, Jr.
Patented Case
View Patent ↗
Granted: Mar 5, 2002
Filed: Feb 16, 1999
Inventors
Thomas Hsiao-Ling Hsiung
Howard Paul Withers, Jr.
Assignee (at issue)
Air Products and Chemicals, 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.