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For the Inventor, By the Inventor

San Bruno, CA, United States of America

Kass Enterprises


USPTO Granted Patents = 1

Forward Citations = 15

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1 inventor (with patents filed for the assignee):

goldMedal Boris Shteynberg (1 out of 11 patents)


1 patent:

1. 5191973 - Adjustable paintbrush holder (1993-03-09),
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USPTO Data Jan 1 1976 - Dec 23 2025

1 Patents

#21 in San Bruno, CA

#28,429 in California

#133,811 in US

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San Bruno, CA, United States of America

Kass Enterprises

Forward Citations = 15

1 inventor:

goldMedal Boris Shteynberg (1 out of 11 patents)

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