Growing community of inventors

Guildford, United Kingdom

David Surman

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 = 7

David SurmanEvelyn Arthur Shervington (1 patent)David SurmanDavid W Birch (1 patent)David SurmanDavid Surman (1 patent)Evelyn Arthur ShervingtonEvelyn Arthur Shervington (9 patents)David W BirchDavid W Birch (8 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Boc Group, Inc. (1 from 1,024 patents)


1 patent:

1. 6047865 - Gas capsule and gas delivery system

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12/31/2025
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