Growing community of inventors

Redwood City, CA, United States of America

Ruth M Johnson

Average Co-Inventor Count = 4.00

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 = 6

Ruth M Johnson ↔ Yuh-Geng Tsay (1 patent)Ruth M Johnson ↔ Emanuel Calenoff (1 patent)Ruth M Johnson ↔ John R Scott (1 patent)Ruth M JohnsonRuth M Johnson (1 patent)Yuh-Geng TsayYuh-Geng Tsay (14 patents)Emanuel CalenoffEmanuel Calenoff (9 patents)John R ScottJohn R Scott (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


1 patent:

1. 4845027 - Fluorometric assay of allergic reactions

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as of
12/20/2025
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