Granted Patent
Utility
US 4,319,928 · App. 06/146,533
Technique to reduce the zeolite molecular sieve solubility in an aqueous system
Inventors:
Santi Kulprathipanja, Richard W. Neuzil
Patented Case
View Patent ↗
Granted: Mar 16, 1982
Filed: May 2, 1980
Inventors
Santi Kulprathipanja
Richard W. Neuzil
Assignee (at issue)
UOP LLC
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.