Growing community of inventors

Boulder, CO, United States of America

Larry A Friedman

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 = 257

Larry A Friedman ↔ Douglas John Ertz (1 patent)Larry A Friedman ↔ David J Marinelli (1 patent)Larry A Friedman ↔ William Katamura (1 patent)Larry A Friedman ↔ Cheuk W Kwok (1 patent)Larry A FriedmanLarry A Friedman (1 patent)Douglas John ErtzDouglas John Ertz (6 patents)David J MarinelliDavid J Marinelli (2 patents)William KatamuraWilliam Katamura (1 patent)Cheuk W KwokCheuk W Kwok (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. At&t Bell Laboratories (1 from 3,345 patents)


1 patent:

1. 5003577 - Voice and data interface to a voice-mail service system

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1/14/2026
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