Growing community of inventors

Blue Springs, MO, United States of America

David K Johnston

Average Co-Inventor Count = 2.00

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 = 24

David K JohnstonMichael R Stuber (1 patent)David K JohnstonDonald A Suderman (1 patent)David K JohnstonDavid K Johnston (2 patents)Michael R StuberMichael R Stuber (3 patents)Donald A SudermanDonald A Suderman (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Allis-chalmers Corporation (2 from 532 patents)


2 patents:

1. 4270551 - Air baffle for harvester accelerator rolls

2. 4222395 - Threshing cage fingers for retarding the flow of material through an

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as of
12/31/2025
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