Growing community of inventors

Reichelsheim, Germany

Heinrich Hartmann

Average Co-Inventor Count = 4.00

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 = 11

Heinrich Hartmann ↔ Klaus Kerk (1 patent)Heinrich Hartmann ↔ Friedel Emmerich (1 patent)Heinrich Hartmann ↔ Dieter Franitza (1 patent)Heinrich HartmannHeinrich Hartmann (1 patent)Klaus KerkKlaus Kerk (4 patents)Friedel EmmerichFriedel Emmerich (2 patents)Dieter FranitzaDieter Franitza (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rohm Gmbh Chemische Fabrik (1 from 104 patents)


1 patent:

1. 4907648 - Plastic crosscurrent heat exchanger

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as of
12/15/2025
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