Growing community of inventors

Miramar, New Zealand

Grant David Purvis

Average Co-Inventor Count = 3.00

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 = 111

Grant David PurvisDavid M Raffo (3 patents)Grant David PurvisRudy Anthony Vandenbelt (2 patents)Grant David PurvisTroy Gene Anderson (2 patents)Grant David PurvisGrant David Purvis (3 patents)David M RaffoDavid M Raffo (47 patents)Rudy Anthony VandenbeltRudy Anthony Vandenbelt (61 patents)Troy Gene AndersonTroy Gene Anderson (26 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Headwaters Research and Development, Inc. (2 from 33 patents)

2. Other (1 from 832,843 patents)


3 patents:

1. 6283930 - Travel massage brush

2. 6071215 - Multi-mode exercise machine

3. D406650 - Massage brush

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as of
12/29/2025
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