Inventor
JOHNSON KIRK R
US31 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON KIRK R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FLUKE CORP
16 patentsUS7535002B2May 19, 2009
Camera with visible light and infrared image blending
FLUKE CORP76 citations97
US7538326B2May 26, 2009
Visible light and IR combined image camera with a laser pointer
FLUKE CORP123 citations96
US10152811B2Dec 11, 2018
Edge enhancement for thermal-visible combined images and cameras
FLUKE CORP30 citations94
US7994480B2Aug 9, 2011
Visible light and IR combined image camera
FLUKE CORP57 citations93
US11641441B2May 2, 2023
Optical gas imaging systems and method compatible with uncooled thermal imaging cameras
FLUKE CORP7 citations86
US11022546B2Jun 1, 2021
Optical gas imaging systems and methods
FLUKE CORP7 citations84
US9635282B2Apr 25, 2017
Visible light and IR combined image camera
FLUKE CORP11 citations83
US9467605B2Oct 11, 2016
Shutter for thermal imaging camera
FLUKE CORP6 citations73
US9282259B2Mar 8, 2016
Camera and method for thermal image noise reduction using post processing techniques
FLUKE CORP3 citations73
US9277143B2Mar 1, 2016
Thermal imaging camera with repositionable active portions of focal plane array
FLUKE CORP3 citations73
US11032492B2Jun 8, 2021
Visible light and IR combined image camera
FLUKE CORP3 citations72
US10366496B2Jul 30, 2019
Visible light image with edge marking for enhancing IR imagery
FLUKE CORP3 citations72
US9990730B2Jun 5, 2018
Visible light image with edge marking for enhancing IR imagery
FLUKE CORP4 citations72
US12474214B2Nov 18, 2025
Optical gas imaging systems and method compatible with uncooled thermal imaging cameras
FLUKE CORP0 citations62
US10872448B2Dec 22, 2020
Edge enhancement for thermal-visible combined images and cameras
FLUKE CORP0 citations52
US10726559B2Jul 28, 2020
Visible light image with edge marking for enhancing IR imagery
FLUKE CORP0 citations51
SENTROL INC
4 patentsUS5546074AAug 13, 1996
Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy
SENTROL INC252 citations97
USD361732SAug 29, 1995
Smoke detector housing
SENTROL INC17 citations81
USD359701SJun 27, 1995
Smoke detector cover
SENTROL INC19 citations81
US5539381AJul 23, 1996
Fixed threshold and rate of rise heat detector with dynamic thermal reference
SENTROL INC18 citations74