Granted Patent
Utility
US 4,333,768 · App. 06/217,945
Technique to reduce the zeolite molecular sieve solubility in an aqueous system
Inventors:
Santi Kulprathipanja, Herman S. Bloch
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Dec 18, 1980
Inventors
Santi Kulprathipanja
Herman S. Bloch
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.