Growing community of inventors

Essen, Germany

Peter Hartogh

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 = 0

Peter Hartogh ↔ Hugo Vogelsang (1 patent)Peter Hartogh ↔ Michael Rolfes (1 patent)Peter Hartogh ↔ Michael Rolfes (1 patent)Peter HartoghPeter Hartogh (1 patent)Hugo VogelsangHugo Vogelsang (5 patents)Michael RolfesMichael Rolfes (3 patents)Michael RolfesMichael Rolfes (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Vogelsang Gmbh & Co. Kg (1 from 15 patents)


1 patent:

1. 11841016 - Rotor for an eccentric screw pump and method for the manufacture thereof

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12/19/2025
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