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Hastings, MN, United States of America

John A Calkins

Average Co-Inventor Count = 2.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 10

John A CalkinsSteve MacWilliams (1 patent)John A CalkinsPhilip O Jesme (1 patent)John A CalkinsJohn A Calkins (2 patents)Steve MacWilliamsSteve MacWilliams (5 patents)Philip O JesmePhilip O Jesme (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Smead Manufacturing Company (2 from 80 patents)


2 patents:

1. 6969092 - Desktop printable file folder blank and filing system

2. 4159767 - Folder-tang assembly apparatus

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