Growing community of inventors

Pokagon Township, Cass County, MI, United States of America

John W Marsman

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 = 8

John W MarsmanG Norman Heaton (1 patent)John W MarsmanJohn W Marsman (1 patent)G Norman HeatonG Norman Heaton (3 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Victor Comptometer Corporation (1 from 13 patents)


1 patent:

1. 4072232 - Package for multiple containers

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12/15/2025
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