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For the Inventor, By the Inventor

Naperville, IL, United States of America

Dupage Children's Museum, Inc.


USPTO Granted Patents = 3

Trademarks = 3

Forward Citations = 5

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3 inventors (with patents filed for the assignee):

goldMedal Mark A Wickart (2 out of 2 patents)

silverMedal Richard Grant Sparber (1 out of 14 patents)

bronzeMedal Paul E Maass (1 out of 4 patents)


3 patents:

1. 8177120 - Currency donation machine using air current (2012-05-15),
2. 7165861 - Ultraviolet peg illumination (2007-01-23),
3. 6386803 - Drill for inexperienced users (2002-05-14),
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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#51 in Naperville, IL

#3,364 in Illinois

#72,066 in US

...
Naperville, IL, United States of America

Dupage Children's Museum, Inc.

Forward Citations = 5

3 inventors:

goldMedal Mark A Wickart (2 out of 2 patents)

silverMedal Richard Grant Sparber (1 out of 14 patents)

bronzeMedal Paul E Maass (1 out of 4 patents)

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