Growing community of inventors

Bracknell, United Kingdom

Keith P Johnson

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 = 1

Keith P JohnsonChristopher R Lewington (1 patent)Keith P JohnsonKeith P Johnson (1 patent)Christopher R LewingtonChristopher R Lewington (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Instron Limited (1 from 22 patents)


1 patent:

1. 5454174 - Position setting device and securing arrangement for an extensometer

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12/12/2025
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