Growing community of inventors

Drachten, Netherlands

Willem Drachten

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 = 6

Willem DrachtenErik Houbolt (1 patent)Willem DrachtenAndre Kuijper (1 patent)Willem DrachtenMartin Leonard Bakker (1 patent)Willem DrachtenWillem Drachten (1 patent)Erik HouboltErik Houbolt (4 patents)Andre KuijperAndre Kuijper (1 patent)Martin Leonard BakkerMartin Leonard Bakker (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Koninklijke Philips Corporation N.V. (1 from 21,384 patents)


1 patent:

1. 9409301 - Cap with multi-angle annular corrugation surfaces for shaving apparatus

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12/28/2025
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