St. Louis, MO, United States of America

Particle and Coating Technologies, Inc.


USPTO Granted Patents = 2

Forward Citations = 28

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3 inventors (with patents filed for the assignee):

goldMedal Robert E Sparks (2 out of 14 patents)

silverMedal Irwin C Jacobs (1 out of 16 patents)

bronzeMedal Norbert S Mason (1 out of 10 patents)


2 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

2 Patents

#473 in St. Louis, MO

#1,289 in Missouri

#92,599 in US

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St. Louis, MO, United States of America
Forward Citations = 28

3 inventors:

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