Growing community of inventors

Pittsburgh, PA, United States of America

John Lettman

Average Co-Inventor Count = 5.17

ph-index = 2

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 = 26

John LettmanJustin Starr (5 patents)John LettmanTodd Kueny (5 patents)John LettmanFoster J Salotti (5 patents)John LettmanGalin Konakchiev (4 patents)John LettmanTimothy Renton (1 patent)John LettmanAnthony Van Iersel (1 patent)John LettmanJohn Lettman (5 patents)Justin StarrJustin Starr (24 patents)Todd KuenyTodd Kueny (18 patents)Foster J SalottiFoster J Salotti (16 patents)Galin KonakchievGalin Konakchiev (12 patents)Timothy RentonTimothy Renton (4 patents)Anthony Van IerselAnthony Van Iersel (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Redzone Robotics, Inc. (5 from 36 patents)


5 patents:

1. 11674943 - Method and apparatus for robotic, in-pipe water quality testing

2. 10859554 - Method and apparatus for robotic, in-pipe water quality testing

3. 10309949 - Method and apparatus for robotic, in-pipe water quality testing

4. 10115237 - Virtual reality display of pipe inspection data

5. 9927354 - Method and apparatus for pipe imaging with chemical analysis

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as of
12/4/2025
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