Oakland, CA, United States of America

Key Source International


USPTO Granted Patents = 3

Trademarks = 2

Forward Citations = 17

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4 inventors (with patents filed for the assignee):

goldMedal Robert A D Schwartz (2 out of 7 patents)

silverMedal David E Baker (2 out of 2 patents)

bronzeMedal Philip J Bruno (1 out of 7 patents)

4 Phillip J Bruno (1 out of 1 patent)


3 patents:

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#126 in Oakland, CA

#16,407 in California

#71,949 in US

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Oakland, CA, United States of America
Forward Citations = 17

4 inventors:

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