42 Utility and 1 Design Patents
#78 in Lexington, MA
#1,311 in Massachusetts
#27,704 in US
#52,518 in the World
rank by utility patentsForward Citations = 1,658
Company Filing History:


United States Filter Corporation
4. 3 out of 922

5. 3 out of 125
Ionics, Inc.
where one patent can have more than one assignee
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