Growing community of inventors

Holland, MI, United States of America

John E Hartman

Average Co-Inventor Count = 1.33

ph-index = 2

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 = 11

John E HartmanJoseph M Reed (1 patent)John E HartmanJohn E Hartman (2 patents)Joseph M ReedJoseph M Reed (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)

2. Favorite Manufacturing, Inc. (1 from 11 patents)


2 patents:

1. 7032347 - Potted plant hanger assembly

2. 4149659 - Feed return impeller

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as of
12/19/2025
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