Growing community of inventors

Amsterdam, Netherlands

Martyn Gray Darnbrough Beedham

Average Co-Inventor Count = 8.00

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 = 16

Martyn Gray Darnbrough BeedhamJoseph W Grez (3 patents)Martyn Gray Darnbrough BeedhamWolter F Benning (3 patents)Martyn Gray Darnbrough BeedhamCharles B Cook (3 patents)Martyn Gray Darnbrough BeedhamGregg Heard (3 patents)Martyn Gray Darnbrough BeedhamChristopher Dabrowski (3 patents)Martyn Gray Darnbrough BeedhamRick Peterson (3 patents)Martyn Gray Darnbrough BeedhamHanne Lindholt Caspersen (3 patents)Martyn Gray Darnbrough BeedhamMartyn Gray Darnbrough Beedham (3 patents)Joseph W GrezJoseph W Grez (51 patents)Wolter F BenningWolter F Benning (28 patents)Charles B CookCharles B Cook (5 patents)Gregg HeardGregg Heard (4 patents)Christopher DabrowskiChristopher Dabrowski (4 patents)Rick PetersonRick Peterson (3 patents)Hanne Lindholt CaspersenHanne Lindholt Caspersen (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Koninklijke Philips Corporation N.v. (2 from 21,443 patents)

2. Koninklijkle Philips N.v. (1 from 39 patents)


3 patents:

1. 11083281 - System for operating modes for an electric toothbrush

2. 9648945 - System for operating modes for an electric toothbrush

3. 8789227 - System for operating modes for an electric toothbrush

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as of
1/21/2026
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