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USPTO Data Jan 1 1976 - Sep 22 2026
1 Patents
#277 in Santa Monica, CA
#28,987 in California
#136,583 in US
Sigma Design Group
Forward Citations = 10
4 inventors:
Santa Monica, CA, United States of America
Sigma Design Group
CIPO Patents = 1
Forward Citations = 10
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4 inventors (with patents filed for the assignee):
Robert Evans Wetmore (1 out of 11 patents)
Gerald C Nash (1 out of 1 patent)
Donald R Stewart (1 out of 1 patent)
4. Glenn M Berggren (1 out of 2 patents)
5. Donald R Stewart (0 patent)
6. Robert E Wetmore (0 patent)
1 patent:
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1 patent (CIPO):
Please report any incorrect information to [email protected]
Please report any incorrect information to [email protected]