Inventor · disambiguated record
John Lettman
Also filed as: LETTMAN JOHN
5 granted patents·45 citations·filing 2016–2020
76Inventor score
Files withREDZONE ROBOTICS INC5
Top patents by PatentIndex Score
5 records- 0196US9927354B1Method and apparatus for pipe imaging with chemical analysisREDZONE ROBOTICS INC·Filed 2016·Granted Mar 27, 2018·37 cites·20 claims
- 0290US10309949B2Method and apparatus for robotic, in-pipe water quality testingREDZONE ROBOTICS INC·Filed 2016·Granted Jun 4, 2019·4 cites·14 claims
- 0379US10115237B2Virtual reality display of pipe inspection dataREDZONE ROBOTICS INC·Filed 2016·Granted Oct 30, 2018·4 cites·15 claims
- 0470US11674943B2Method and apparatus for robotic, in-pipe water quality testingREDZONE ROBOTICS INC·Filed 2020·Granted Jun 13, 2023·0 cites·20 claims
- 0553US10859554B2Method and apparatus for robotic, in-pipe water quality testingREDZONE ROBOTICS INC·Filed 2019·Granted Dec 8, 2020·0 cites·20 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →