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Wurselen, Germany

Fritz Kappertz

Average Co-Inventor Count = 2.67

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 = 21

Fritz Kappertz ↔ Thaddeus J Zylbert (1 patent)Fritz Kappertz ↔ Wolf-Dieter Fuhrmann (1 patent)Fritz Kappertz ↔ Siegmar Bergrath (1 patent)Fritz Kappertz ↔ Hans Hammer (1 patent)Fritz KappertzFritz Kappertz (2 patents)Thaddeus J ZylbertThaddeus J Zylbert (12 patents)Wolf-Dieter FuhrmannWolf-Dieter Fuhrmann (2 patents)Siegmar BergrathSiegmar Bergrath (1 patent)Hans HammerHans Hammer (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Singer Company (1 from 1,246 patents)

2. Singer Spezialnadelfabrik Gmbh (1 from 2 patents)


2 patents:

1. 4573575 - Needle packaging

2. 4519330 - Sewing needle with two portion shank

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idiyas.com
as of
12/31/2025
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