13 Utility Patents
#123 in Washington, DC
#124 in District of Columbia
#147,719 in US
#297,024 in the World
Forward Citations = 748
Company Filing History:
Active Signal Technologies, Inc.
Martin Marietta Magnesia Specialties, Inc.

4. 1 out of 832,575 patents
Other
5. 1 out of 444

where one patent can have more than one assignee
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