New York, NY, United States of America

National Patent Development Co.


USPTO Granted Patents = 2

Forward Citations = 36

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2 inventors (with patents filed for the assignee):

goldMedal Richard Chen (1 out of 7 patents)

silverMedal Charles K Kliment (1 out of 4 patents)


2 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

2 Patents

#2,090 in New York, NY

#5,647 in New York

#92,598 in US

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New York, NY, United States of America
Forward Citations = 36

2 inventors:

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