Growing community of inventors

Royston, United Kingdom

John David Marsh

Average Co-Inventor Count = 3.43

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 = 57

John David MarshDexter R Plummer (1 patent)John David MarshGerald Avison (1 patent)John David MarshPaul Barnes (1 patent)John David MarshPhilip T Blenkinsop (1 patent)John David MarshAndrew Robert Fry (1 patent)John David MarshJohn David Marsh (2 patents)Dexter R PlummerDexter R Plummer (9 patents)Gerald AvisonGerald Avison (6 patents)Paul BarnesPaul Barnes (6 patents)Philip T BlenkinsopPhilip T Blenkinsop (4 patents)Andrew Robert FryAndrew Robert Fry (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bespak Plc (1 from 66 patents)

2. Facit Aktiebolag (1 from 29 patents)


2 patents:

1. 5653227 - Atomizing dispenser

2. 4149807 - Method of typewriting or printing

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as of
12/16/2025
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