Growing community of inventors

Saint Paul, MN, United States of America

Roy F Johnson

Average Co-Inventor Count = 3.43

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 = 33

Roy F JohnsonJohn Ellwood Thomas (1 patent)Roy F JohnsonJames L Copeland (1 patent)Roy F JohnsonJamie W Lerbs (1 patent)Roy F JohnsonRonald D Jungmann (1 patent)Roy F JohnsonRichard V Mullen (1 patent)Roy F JohnsonRoy F Johnson (2 patents)John Ellwood ThomasJohn Ellwood Thomas (65 patents)James L CopelandJames L Copeland (56 patents)Jamie W LerbsJamie W Lerbs (11 patents)Ronald D JungmannRonald D Jungmann (6 patents)Richard V MullenRichard V Mullen (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ecolab Inc. (2 from 792 patents)


2 patents:

1. 6675840 - Fill probe with in-line mixer

2. 6131774 - Flowable material dispenser with automatic shutoff and vessel for

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