Growing community of inventors

Portland, OR, United States of America

Philip James Witham

Average Co-Inventor Count = 1.77

ph-index = 5

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 = 314

Philip James WithamJohn R French (4 patents)Philip James WithamNoel S Smith (1 patent)Philip James WithamPaul P Tesch (1 patent)Philip James WithamNoel Paul Martin (1 patent)Philip James WithamRoderick W Boswell (1 patent)Philip James WithamDavid M Giuntoli (1 patent)Philip James WithamThomas K Bailey (1 patent)Philip James WithamPhilip James Witham (7 patents)John R FrenchJohn R French (8 patents)Noel S SmithNoel S Smith (20 patents)Paul P TeschPaul P Tesch (13 patents)Noel Paul MartinNoel Paul Martin (4 patents)Roderick W BoswellRoderick W Boswell (3 patents)David M GiuntoliDavid M Giuntoli (3 patents)Thomas K BaileyThomas K Bailey (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Carttronics, Llc. (3 from 11 patents)

2. Other (2 from 832,718 patents)

3. Thomson Licensing (1 from 3,471 patents)

4. Oregon Physics, LLC (1 from 4 patents)


7 patents:

1. 10128076 - Inductively coupled plasma ion source with tunable radio frequency power

2. 8653443 - Neutral particle microscope

3. 8315509 - Video player for digital video server

4. 6975205 - Cart return credit system

5. 6486768 - Cart return loyalty credit system

6. 6125972 - Security apparatus and method for shopping carts and the like

7. 5973596 - Golf club and bag security system

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as of
12/10/2025
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