Growing community of inventors

Eich, Switzerland

Pierre Fredy Kirchhofer

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 = 5

Pierre Fredy KirchhoferArmin Bärtschi (1 patent)Pierre Fredy KirchhoferMartin Zwimpfer (1 patent)Pierre Fredy KirchhoferHerbert Fischer (1 patent)Pierre Fredy KirchhoferMatthew Kwang (1 patent)Pierre Fredy KirchhoferChristoph Willi (1 patent)Pierre Fredy KirchhoferVivek Patel (1 patent)Pierre Fredy KirchhoferGerhart Huy (1 patent)Pierre Fredy KirchhoferPierre Fredy Kirchhofer (2 patents)Armin BärtschiArmin Bärtschi (24 patents)Martin ZwimpferMartin Zwimpfer (15 patents)Herbert FischerHerbert Fischer (8 patents)Matthew KwangMatthew Kwang (2 patents)Christoph WilliChristoph Willi (1 patent)Vivek PatelVivek Patel (1 patent)Gerhart HuyGerhart Huy (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Trisa Holding Ag (2 from 122 patents)


2 patents:

1. 11666426 - Brush attachment, electric toothbrush handpiece and electric toothbrush comprising the electric toothbrush handpiece and the brush attachment

2. 10470558 - Toothbrush with moved elements

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as of
12/11/2025
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