Santa Clara, CA, United States of America

Middlefield Ventures, Inc.


USPTO Granted Patents = 2

% Expired Patents = 100.0

Forward Citations = 488

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2 inventors (with patents filed for the assignee):

goldMedal Boon-Lock Yeo (2 out of 53 patents)

silverMedal Edward Kihyen Lee (2 out of 46 patents)


2 patents:

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USPTO Data Jan 1 1976 - Sep 15 2026

2 Patents

#741 in Santa Clara, CA

#20,971 in California

#94,722 in US

Santa Clara, CA (US)
Santa Clara, CA, United States of America
Forward Citations = 488

2 inventors:

Please report any incorrect information to [email protected]
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