Growing community of inventors

Perach, Germany

Helmut Grumann

Average Co-Inventor Count = 9.00

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

Helmut Grumann ↔ Winfried Lork (1 patent)Helmut Grumann ↔ Peter Kammerhofer (1 patent)Helmut Grumann ↔ Manfred Stoger (1 patent)Helmut Grumann ↔ Dieter Jaculi (1 patent)Helmut Grumann ↔ Hermann Tropp (1 patent)Helmut Grumann ↔ Arend Greve (1 patent)Helmut Grumann ↔ Jurgen Eichler (1 patent)Helmut Grumann ↔ Jan Wilkens (1 patent)Helmut GrumannHelmut Grumann (1 patent)Winfried LorkWinfried Lork (18 patents)Peter KammerhoferPeter Kammerhofer (13 patents)Manfred StogerManfred Stoger (3 patents)Dieter JaculiDieter Jaculi (2 patents)Hermann TroppHermann Tropp (1 patent)Arend GreveArend Greve (1 patent)Jurgen EichlerJurgen Eichler (1 patent)Jan WilkensJan Wilkens (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Vinnolit Technologie Gmbh & Co. (1 from 2 patents)

2. Vintron Gmbh (1 from 1 patent)


1 patent:

1. 7309804 - Process for purifying 1,2-dichloroethane

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12/11/2025
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