12 Utility Patents
#442 in Toronto
#4,771 in Canada
#325,978 in the World
Forward Citations = 225
Company Filing History:

Ponder & Best, Inc.
Opcon Associates of Canada, Ltd.
4. 1 out of 7,865

5. 1 out of 48
U.S. Precision Lens Incorporated
where one patent can have more than one assignee
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