Granted Patent
Utility
US 5,536,285 · App. 08/246,221
Ceramic filtering of gases
Inventors:
Juhani Isaksson, Timo Eriksson, Pekka Lehtonen
Patented Case
View Patent ↗
Granted: Jul 16, 1996
Filed: May 18, 1994
Inventors
Juhani Isaksson
Timo Eriksson
Pekka Lehtonen
Assignee (at issue)
FOSTER WHEELER ENERGIA OY
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.