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Patents
Patents Assigned to Water Resources International, Inc.
Patents Assigned to Water Resources International, Inc.
Reverse osmosis water purifier
Patent number:
D290638
Type:
Grant
Filed:
December 20, 1985
Date of Patent:
June 30, 1987
Assignee:
Water Resources International, Inc.
Inventor:
Jerry M. Bishop
Water purification unit
Patent number:
D407462
Type:
Grant
Filed:
July 9, 1997
Date of Patent:
March 30, 1999
Assignee:
Water Resources International Inc.
Inventors:
Jerry M. Bishop, Douglas M. Horn