7 Utility Patents
#18 in Rowley, MA
#15,667 in Massachusetts
#288,068 in US
#590,709 in the World
Forward Citations = 32
Company Filing History:
Wheelabrator Environmental Systems, Inc.
Wheelabrator Technologies, Inc.

4. 1 out of 164
The Carborundum Company
where one patent can have more than one assignee
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