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For the Inventor, By the Inventor

US

Duo-tang, Inc.


USPTO Granted Patents = 3

Forward Citations = 137

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2 inventors (with patents filed for the assignee):

goldMedal Howard R Mullin (3 out of 10 patents)

silverMedal Peter D Doninelli (3 out of 9 patents)


3 patents:

1. 5782569 - Molded binder assembly (1998-07-21),
2. 5425592 - Hinge binder device (1995-06-20),
3. 5393156 - Molded binder assembly (1995-02-28),
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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#305 in undefined, undefined

#734 in

#72,042 in US

...
US

Duo-tang, Inc.

Forward Citations = 137

2 inventors:

goldMedal Howard R Mullin (3 out of 10 patents)

silverMedal Peter D Doninelli (3 out of 9 patents)

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