Growing community of inventors

Friesland, Netherlands

Sybren Ytsma

Average Co-Inventor Count = 1.00

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 = 5

Sybren YtsmaSybren Ytsma (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Impress Group B.v. (1 from 14 patents)

2. Ardagh Mp Group Netherlands B.v. (22 patents)


1 patent:

1. 8671730 - Method and apparatus for making a can with a curled end, such can and body

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12/15/2025
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