Growing community of inventors

Lübeck-Travemünde, Germany

Ryzard Kummerfeld

Average Co-Inventor Count = 5.00

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 = 10

Ryzard KummerfeldIngolf Diez (2 patents)Ryzard KummerfeldMargret Hünerbein (2 patents)Ryzard KummerfeldJoachim Schröter (2 patents)Ryzard KummerfeldGeorg Schlör (2 patents)Ryzard KummerfeldRyzard Kummerfeld (2 patents)Ingolf DiezIngolf Diez (4 patents)Margret HünerbeinMargret Hünerbein (2 patents)Joachim SchröterJoachim Schröter (2 patents)Georg SchlörGeorg Schlör (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dräger Medical Ag & Co Kgaa (2 from 44 patents)


2 patents:

1. 7441923 - Operating room light fixture and handle with control element

2. 7401944 - Operating room light fixture having two light sources and a control unit

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as of
1/13/2026
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