Growing community of inventors

Hayward, CA, United States of America

Frederick P Brechtel

Average Co-Inventor Count = 4.00

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 = 12

Frederick P Brechtel ↔ Robert J Espinosa (1 patent)Frederick P Brechtel ↔ Sherman Lloyd Rutherford (1 patent)Frederick P Brechtel ↔ Ronald M Paitich (1 patent)Frederick P BrechtelFrederick P Brechtel (1 patent)Robert J EspinosaRobert J Espinosa (6 patents)Sherman Lloyd RutherfordSherman Lloyd Rutherford (5 patents)Ronald M PaitichRonald M Paitich (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Duniway Stockroom Corporation (1 from 3 patents)


1 patent:

1. 6566884 - Ionization vacuum pressure gauge

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as of
12/15/2025
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