Growing community of inventors

Doringkloof, South Africa

Johanna Catharina Viljoen

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 = 7

Johanna Catharina ViljoenJean Pierre Le Roux (1 patent)Johanna Catharina ViljoenJohanna Catharina Viljoen (1 patent)Jean Pierre Le RouxJean Pierre Le Roux (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Aeci Explosives Limited (1 from 3 patents)


1 patent:

1. 5665932 - Initiation of blasting

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12/20/2025
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