Growing community of inventors

Stockelsdorf, Germany

Helmut Holtmann

Average Co-Inventor Count = 1.83

ph-index = 3

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 = 28

Helmut HoltmannWolfgang Franz (1 patent)Helmut HoltmannUte Ollmann (1 patent)Helmut HoltmannKatja Nicke (1 patent)Helmut HoltmannThomas Haase (1 patent)Helmut HoltmannWolfgang Specht (1 patent)Helmut HoltmannSiegfried Preiniger (1 patent)Helmut HoltmannAxel Mummert (1 patent)Helmut HoltmannHelmut Holtmann (3 patents)Wolfgang FranzWolfgang Franz (7 patents)Ute OllmannUte Ollmann (2 patents)Katja NickeKatja Nicke (1 patent)Thomas HaaseThomas Haase (1 patent)Wolfgang SpechtWolfgang Specht (1 patent)Siegfried PreinigerSiegfried Preiniger (1 patent)Axel MummertAxel Mummert (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dragerwerk Aktiengesellschaft (2 from 552 patents)

2. Dräger Medizintechnik Gmbh (1 from 11 patents)


3 patents:

1. 6513195 - Hinge for a container

2. 6031968 - Humidifying system with a filling level control for the liquid to be

3. 5830123 - Pivotable irradiating device

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1/13/2026
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