Growing community of inventors

Racine, WI, United States of America

Donald R Johnson

Average Co-Inventor Count = 5.46

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 = 4

Donald R JohnsonDaniel J Bosch (2 patents)Donald R JohnsonHal W Cousins (2 patents)Donald R JohnsonThomas F Mitchell (2 patents)Donald R JohnsonEd L Hendricks (2 patents)Donald R JohnsonJames L Wehrman (1 patent)Donald R JohnsonDonald R Johnson (2 patents)Daniel J BoschDaniel J Bosch (4 patents)Hal W CousinsHal W Cousins (2 patents)Thomas F MitchellThomas F Mitchell (2 patents)Ed L HendricksEd L Hendricks (2 patents)James L WehrmanJames L Wehrman (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Modine Manufacturing Company (2 from 446 patents)


2 patents:

1. 6360818 - Baffle for a header in a heat exchanger

2. 5799396 - Method of installing a baffle in a header in a heat exchanger

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12/17/2025
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