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Granby, MA, United States of America

Robert Phelps

Average Co-Inventor Count = 3.00

ph-index = 3

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 = 63

Robert PhelpsThomas J Kennedy, Iii (3 patents)Robert PhelpsStephen Green (3 patents)Robert PhelpsRobert Phelps (3 patents)Thomas J Kennedy, IiiThomas J Kennedy, Iii (223 patents)Stephen GreenStephen Green (13 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Callaway Golf Company (3 from 2,054 patents)


3 patents:

1. 7765931 - Method for applying indicia to a golf ball

2. 7448323 - Method for applying indicia to a golf ball

3. 7048651 - Golf Ball

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as of
1/13/2026
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