Growing community of inventors

Pulheim, Germany

Josef Hannappel

Average Co-Inventor Count = 4.00

ph-index = 2

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 = 17

Josef HannappelJuergen Reuter (2 patents)Josef HannappelRoland Gerlach (2 patents)Josef HannappelDorothea Rohrmann (2 patents)Josef HannappelJosef Hannappel (2 patents)Juergen ReuterJuergen Reuter (6 patents)Roland GerlachRoland Gerlach (2 patents)Dorothea RohrmannDorothea Rohrmann (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Caremed Medical Produkte Ag (2 from 3 patents)


2 patents:

1. 6350285 - Implant holder

2. 6197005 - Check valve, in particular for use in an implantable artificial bladder

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as of
12/17/2025
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