Growing community of inventors

Spring Lake Park, MN, United States of America

Richard A Johnson

Average Co-Inventor Count = 4.00

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 = 23

Richard A JohnsonDennis Edward Vogel (2 patents)Richard A JohnsonJames P Gardner, Jr (2 patents)Richard A JohnsonLeonard Stulc (2 patents)Richard A JohnsonRichard A Johnson (2 patents)Dennis Edward VogelDennis Edward Vogel (41 patents)James P Gardner, JrJames P Gardner, Jr (24 patents)Leonard StulcLeonard Stulc (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Minnesota Mining and Manufacturing Company (1 from 7,865 patents)

2. Imation Corporation (1 from 621 patents)


2 patents:

1. 5939237 - Top coats for shoot and run printing plates

2. 5506090 - Process for making shoot and run printing plates

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as of
1/7/2026
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