Growing community of inventors

Witten, Germany

Wilhelm Schaefer

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 = 22

Wilhelm SchaeferErich John (1 patent)Wilhelm SchaeferWilhelm Schaefer (1 patent)Erich JohnErich John (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Renk Tack Gmbh (1 from 1 patent)


1 patent:

1. 4993848 - Thrust bearing system for counter-rotating propeller shafts,

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12/18/2025
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