Growing community of inventors

East London, South Africa

David Hartwanger

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 = 54

David HartwangerJim Shaikh (1 patent)David HartwangerMike Watkinson (1 patent)David HartwangerDavid Hartwanger (1 patent)Jim ShaikhJim Shaikh (4 patents)Mike WatkinsonMike Watkinson (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)


1 patent:

1. 8319154 - Self-heating fluid container

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as of
12/18/2025
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