33 Utility Patents
#51 in Acton, MA
#1,952 in Massachusetts
#39,246 in US
#75,305 in the World
Forward Citations = 462
Company Filing History:


Betzdearborn, Inc.
4. 3 out of 830,757 patents
Other
5. 2 out of 9
Snf S.a.s.
where one patent can have more than one assignee
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