Growing community of inventors

Kobe, Japan

Eckehard Weigand

Average Co-Inventor Count = 3.00

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 = 2

Eckehard Weigand ↔ Masaru Honda (1 patent)Eckehard Weigand ↔ Yoshinori Kihara (1 patent)Eckehard WeigandEckehard Weigand (1 patent)Masaru HondaMasaru Honda (7 patents)Yoshinori KiharaYoshinori Kihara (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Bayer Urethane Co., Ltd. (1 from 8 patents)


1 patent:

1. 4853417 - Process for manufacturing rigid polyurethane foam

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as of
12/9/2025
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