Growing community of inventors

Esslingen, Germany

Hellfried Sandig

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 = 42

Hellfried SandigHubert Zwick (1 patent)Hellfried SandigHellfried Sandig (1 patent)Hubert ZwickHubert Zwick (12 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Reitter & Schefenacker Gmbh & Co. Kg (1 from 54 patents)


1 patent:

1. 5704709 - Optical receiving body for at least one LED

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12/7/2025
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