Growing community of inventors

Encino, CA, United States of America

David Frees

Average Co-Inventor Count = 2.00

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 = 55

David FreesEdwin L Schwartz (4 patents)David FreesDavid Frees (4 patents)Edwin L SchwartzEdwin L Schwartz (26 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (2 from 832,912 patents)


4 patents:

1. 4759842 - In-line fuel filtering device

2. D290348 - Timing light

3. D289400 - Electronic fuel pump

4. 4537216 - Anti-knock liquid flow control valve

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