Growing community of inventors

Vienna, Austria

Roland Krewenka

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 = 9

Roland Krewenka ↔ Harald Neumayer (1 patent)Roland KrewenkaRoland Krewenka (1 patent)Harald NeumayerHarald Neumayer (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Evva-werk Spezialerzeugung Von Zylinder- Und Sicherheitsschlossern (1 from 15 patents)


1 patent:

1. 5699686 - Device for electromagnetically securing a lock barrel

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as of
12/19/2025
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