For the Inventor, By the Inventor

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Pittsburgh, PA, United States of America

Wean Incorporated

USPTO Granted Patents = 3

Forward Citations = 9

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4 inventors (with patents filed for the assignee):

Robert H Messerly (3 out of 3 patents)

Robert J Prox (3 out of 3 patents)

Norman H Fobes (3 out of 4 patents)

4. William Semenik (3 out of 3 patents)

3 patents: Sort by Forward Citations

1. 5221177 - Arrangement for stacking blanks (1993-06-22),

2. 5039084 - Arrangement for stacking blanks (1991-08-13),

3. 4820102 - Arrangement for and method of stacking blanks (1989-04-11),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#340 in Pittsburgh, PA

#2,631 in Pennsylvania

#71,961 in US

Pittsburgh, PA, United States of America

Wean Incorporated

Forward Citations = 9

4 inventors:

Robert H Messerly (3 out of 3 patents)

Robert J Prox (3 out of 3 patents)

Norman H Fobes (3 out of 4 patents)

4. William Semenik (3 out of 3 patents)

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