David James Keener (1 out of 12 patents)
Company Badge
USPTO Data Jan 1 1976 - Sep 29 2026
1 Patents
#296 in Tulsa, OK
#881 in Oklahoma
#136,675 in US
Zephyrus Electronics, Ltd.
Forward Citations = 6
1 inventor:
Tulsa, OK, United States of America
Zephyrus Electronics, Ltd.
Forward Citations = 6
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1 inventor (with patents filed for the assignee):
1 patent:
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Please report any incorrect information to [email protected]
Please report any incorrect information to [email protected]