Growing community of inventors

Lincoln, NE, United States of America

David W Johnson

Average Co-Inventor Count = 1.33

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 = 2

David W JohnsonAlan C Echtenkamp (1 patent)David W JohnsonDavid W Johnson (2 patents)Alan C EchtenkampAlan C Echtenkamp (4 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Contitech Transportbandsysteme Gmbh (2 from 70 patents)

2. Johnson; David (1 patent)


2 patents:

1. 10874053 - Draper belt with a rubber insert inside the cleats to increase belt durability and reduce fiberglass rod

2. 10233022 - Draper belt having improved cleat design

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as of
1/10/2026
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