Growing community of inventors

Leverkusen, Germany

Helmut Lehmann

Average Co-Inventor Count = 2.00

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 = 14

Helmut LehmannArtur Klotz (1 patent)Helmut LehmannHelmut Lehmann (1 patent)Artur KlotzArtur Klotz (3 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Agfa-gevaert Ag (1 from 1,473 patents)


1 patent:

1. 4205436 - Device for loading film cassettes

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12/11/2025
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