Growing community of inventors

Grossheubach, Germany

Sandra Hefner

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 = 1

Sandra Hefner ↔ Ulrich Demuth (1 patent)Sandra Hefner ↔ Peter Bretz (1 patent)Sandra HefnerSandra Hefner (1 patent)Ulrich DemuthUlrich Demuth (17 patents)Peter BretzPeter Bretz (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wika Alexander Wiegand Se & Co. Kg (1 from 51 patents)


1 patent:

1. D961673 - Type font

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as of
1/16/2026
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