Growing community of inventors

Manchester, NH, United States of America

Robert G Crandall

Average Co-Inventor Count = 3.00

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

Robert G CrandallEarl F Crandall (1 patent)Robert G CrandallRobert C Smallwood, Sr (1 patent)Robert G CrandallRobert G Crandall (1 patent)Earl F CrandallEarl F Crandall (6 patents)Robert C Smallwood, SrRobert C Smallwood, Sr (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Purespectrum, Inc. (1 from 5 patents)


1 patent:

1. 7388334 - High frequency electronic ballast with sine wave oscillator

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as of
12/19/2025
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