Growing community of inventors

Kansas City, MO, United States of America

Edwin O Johnson

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 = 9

Edwin O JohnsonThomas S Carter (1 patent)Edwin O JohnsonEdwin O Johnson (1 patent)Thomas S CarterThomas S Carter (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Kansas City Southern Railway Company (1 from 5 patents)


1 patent:

1. 3957201 - Concrete railroad tie anchor structure

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12/18/2025
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