Framingham, MA, United States of America

Extension Technology Corp.


USPTO Granted Patents = 3

Forward Citations = 79

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3 inventors (with patents filed for the assignee):

goldMedal Eugene Y Chang (3 out of 6 patents)

silverMedal David B Richardson (3 out of 5 patents)

bronzeMedal Bennett C Baker (3 out of 5 patents)


3 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

3 Patents

#61 in Framingham, MA

#3,875 in Massachusetts

#71,968 in US

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Framingham, MA, United States of America
Forward Citations = 79

3 inventors:

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