Sunnyvale, CA, United States of America

Chatterbeak, Inc.


USPTO Granted Patents = 2

% Expired Patents = 50.0

Forward Citations = 3

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2 inventors (with patents filed for the assignee):

goldMedal Roger B Spreen (2 out of 3 patents)

silverMedal Robert Alan Swirsky (2 out of 14 patents)


2 patents:

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USPTO Data Jan 1 1976 - Sep 15 2026

2 Patents

#719 in Sunnyvale, CA

#20,941 in California

#94,628 in US

Sunnyvale, CA (US)
Sunnyvale, CA, United States of America
Forward Citations = 3

2 inventors:

Please report any incorrect information to [email protected]
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