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For the Inventor, By the Inventor

Palmyra, NY, United States of America

Proven Designs, Inc.


USPTO Granted Patents = 2

Forward Citations = 12

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3 inventors (with patents filed for the assignee):

goldMedal David I Laber (2 out of 3 patents)

silverMedal William D Ellsworth (2 out of 4 patents)

bronzeMedal David Z Dike (2 out of 2 patents)


2 patents:

1. 5749822 - Gusset folding mechanism and method for plastic bag making machine (1998-05-12),
2. 5529659 - Machine and associated apparatus for attaching zippers to plastic bags (1996-06-25),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#4 in Palmyra, NY

#5,647 in New York

#92,551 in US

...
Palmyra, NY, United States of America

Proven Designs, Inc.

Forward Citations = 12

3 inventors:

goldMedal David I Laber (2 out of 3 patents)

silverMedal William D Ellsworth (2 out of 4 patents)

bronzeMedal David Z Dike (2 out of 2 patents)

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