Willow Grove, PA, United States of America

Sigma Dynamics Corporation


USPTO Granted Patents = 1

Forward Citations = 32

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2 inventors (with patents filed for the assignee):

goldMedal Eric F Brown (1 out of 1 patent)

silverMedal Frank J Brown (1 out of 2 patents)


1 patent:

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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#15 in Willow Grove, PA

#4,878 in Pennsylvania

#133,919 in US

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Willow Grove, PA, United States of America
Forward Citations = 32

2 inventors:

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