Growing community of inventors

Scottsdale, AZ, United States of America

Howard H Johnston

Average Co-Inventor Count = 1.33

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 = 14

Howard H JohnstonRonald A Yapp (1 patent)Howard H JohnstonHoward H Johnston (2 patents)Ronald A YappRonald A Yapp (10 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (2 from 832,843 patents)


2 patents:

1. 7261327 - Fishing hook tying apparatus

2. 6209930 - Angling accessory device

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as of
12/28/2025
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