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USPTO Data Jan 1 1976 - Dec 23 2025
1 Patents
#558 in Vancouver
#9,173 in Canada
Fortress Optical Features Ltd.
Forward Citations = 23
4 inventors:
Fortress Optical Features Ltd.
CIPO Patents = 1
EPO Patents = 1
Forward Citations = 23
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4 inventors (with patents filed for the assignee):
Charles Douglas MacPherson (1 out of 31 patents)
Denis Gerard Vendette (1 out of 3 patents)
Gilles Girouard (1 out of 2 patents)
4. A Oliver Stone (1 out of 2 patents)
5. Charles Douglas Macpherson (0 patent)
1 patent:
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1 patent (CIPO):
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1 patent (EPO):
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