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For the Inventor, By the Inventor

Fairport Harbor, OH, United States of America

Napro, Inc.


USPTO Granted Patents = 1

Trademarks = 3

Forward Citations = 93

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1 inventor (with patents filed for the assignee):

goldMedal Steven Tsengas (1 out of 99 patents)


1 patent:

1. 6237538 - Pet toy ball feeder (2001-05-29),
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USPTO Data Jan 1 1976 - Dec 23 2025

1 Patents

#4 in Fairport Harbor, OH

#5,173 in Ohio

#133,811 in US

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Fairport Harbor, OH, United States of America

Napro, Inc.

Forward Citations = 93

1 inventor:

goldMedal Steven Tsengas (1 out of 99 patents)

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