Growing community of inventors

London, United Kingdom

Derek Anthony Smith

Average Co-Inventor Count = 3.00

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 = 24

Derek Anthony Smith ↔ Michael Alan Dudley (1 patent)Derek Anthony Smith ↔ Michael John Chase (1 patent)Derek Anthony SmithDerek Anthony Smith (1 patent)Michael Alan DudleyMichael Alan Dudley (10 patents)Michael John ChaseMichael John Chase (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Imperial Metal Industries (kynoch) Limited (1 from 28 patents)


1 patent:

1. 3973397 - Rocket motor with ablative insulating casing liner

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as of
12/19/2025
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