74 Utility Patents
#5 in Rockville, MD
#76 in Maryland
#9,687 in US
#17,751 in the World
Forward Citations = 1,211
Company Filing History:

Srchem Incorporated

4. 9 out of 9
Calwood Chemical Industries, Inc.
5. 6 out of 6
Purification Engineering, Inc.
where one patent can have more than one assignee
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