Growing community of inventors

San Diego, CA, United States of America

Joseph A Ference

Average Co-Inventor Count = 5.00

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 = 2

Joseph A Ference ↔ Michael L Duhl (1 patent)Joseph A Ference ↔ Ronald E Bullock (1 patent)Joseph A Ference ↔ Sam A Ropelato (1 patent)Joseph A Ference ↔ Donald A Uhlir (1 patent)Joseph A FerenceJoseph A Ference (1 patent)Michael L DuhlMichael L Duhl (3 patents)Ronald E BullockRonald E Bullock (3 patents)Sam A RopelatoSam A Ropelato (1 patent)Donald A UhlirDonald A Uhlir (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hughes Missile Systems Company (1 from 102 patents)


1 patent:

1. 5486382 - Method for preparing a cermet-coated article

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1/13/2026
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