Growing community of inventors

Frankfurt-am-Main, Germany

Willi Apel

Average Co-Inventor Count = 5.00

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 = 2

Willi Apel ↔ Walter Fabinski (1 patent)Willi Apel ↔ Heinz Wolf (1 patent)Willi Apel ↔ Guenter Bernhardt (1 patent)Willi Apel ↔ Rudolf Jezdinsky (1 patent)Willi ApelWilli Apel (1 patent)Walter FabinskiWalter Fabinski (29 patents)Heinz WolfHeinz Wolf (3 patents)Guenter BernhardtGuenter Bernhardt (2 patents)Rudolf JezdinskyRudolf Jezdinsky (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hartmann & Braun Ag (1 from 46 patents)


1 patent:

1. 4671664 - Photometer for measuring hot gases

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12/17/2025
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