Inventor
LETTMAN JOHN
US5 patents
Patents
5 patentsUS9927354B1Mar 27, 2018
Method and apparatus for pipe imaging with chemical analysis
REDZONE ROBOTICS INC37 citations92
US10309949B2Jun 4, 2019
Method and apparatus for robotic, in-pipe water quality testing
REDZONE ROBOTICS INC4 citations71
US10115237B2Oct 30, 2018
Virtual reality display of pipe inspection data
REDZONE ROBOTICS INC4 citations68
US11674943B2Jun 13, 2023
Method and apparatus for robotic, in-pipe water quality testing
REDZONE ROBOTICS INC0 citations60
US10859554B2Dec 8, 2020
Method and apparatus for robotic, in-pipe water quality testing
REDZONE ROBOTICS INC0 citations50