Growing community of inventors

Drachten, Netherlands

Atze De Haan

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 = 15

Atze De HaanEduard W Tietjens (1 patent)Atze De HaanJochem J De Vries (1 patent)Atze De HaanHendrik Poel (1 patent)Atze De HaanGerrit J Groothuis (1 patent)Atze De HaanAtze De Haan (1 patent)Eduard W TietjensEduard W Tietjens (22 patents)Jochem J De VriesJochem J De Vries (13 patents)Hendrik PoelHendrik Poel (9 patents)Gerrit J GroothuisGerrit J Groothuis (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. U.S. Philips Corporation (1 from 14,087 patents)


1 patent:

1. 4510687 - Shaving apparatus

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as of
1/7/2026
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