171 Utility Patents
#3 in Woodbury, MN
#41 in Minnesota
#1,730 in US
#2,981 in the World
Forward Citations = 1,657
Company Filing History:
Ethyl Corporation

Ecolab Inc.
4. 4 out of 831,952 patents
Other
5. 3 out of 543

where one patent can have more than one assignee
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