Growing community of inventors

Near Bury, United Kingdom

David Hardman

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 = 9

David Hardman ↔ Ian Christison Sayers (1 patent)David HardmanDavid Hardman (1 patent)Ian Christison SayersIan Christison Sayers (14 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Scapa Group Plc (1 from 46 patents)


1 patent:

1. 5857561 - Tobacco conveyor belt

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1/20/2026
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