Growing community of inventors

Wil, Switzerland

Fredi Widmer

Average Co-Inventor Count = 1.00

ph-index = 2

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 = 29

Fredi WidmerFredi Widmer (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Unilever Patent Holdings B.v. (1 from 336 patents)

2. Hart Chemical Limited (1 from 5 patents)


2 patents:

1. 5273186 - Dispensing device for liquid detergent

2. D273661 - Bottle

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as of
12/18/2025
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