Growing community of inventors

Washington, DC, United States of America

Ronald E Harrigal

Average Co-Inventor Count = 2.00

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 = 10

Ronald E HarrigalJames P Chew (1 patent)Ronald E HarrigalRonald E Harrigal (1 patent)James P ChewJames P Chew (14 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. American Standard Inc. (1 from 1,121 patents)


1 patent:

1. 4665858 - Mounting bracket for railway vehicle couplers

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as of
12/19/2025
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