Growing community of inventors

Pinneberg, Germany

Rolf Heerssen

Average Co-Inventor Count = 3.00

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 = 20

Rolf Heerssen ↔ Martin Herrenknecht (1 patent)Rolf Heerssen ↔ Gebhard Lehmann (1 patent)Rolf HeerssenRolf Heerssen (1 patent)Martin HerrenknechtMartin Herrenknecht (2 patents)Gebhard LehmannGebhard Lehmann (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Herrenknecht (1 from 5 patents)


1 patent:

1. 5437500 - Tunneling machine with center cutter and debris removing means

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12/13/2025
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