Inventor
KREIKEBAUM GERHARD
18 patents
⚠️ This page may combine multiple inventors who share the name “KREIKEBAUM GERHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VENTUREDYNE LTD
8 patentsUS5467189ANov 14, 1995
Improved particle sensor and method for assaying a particle
VENTUREDYNE LTD150 citations98
US5600438AFeb 4, 1997
Particle sensor with variable-speed blower
VENTUREDYNE LTD50 citations96
US5515164AMay 7, 1996
Particle sensor with low-pressure-drop air flow system
VENTUREDYNE LTD52 citations96
USRE37353ESep 4, 2001
Particle sensor with variable-speed blower
VENTUREDYNE LTD17 citations92
US6091494AJul 18, 2000
Particle sensor with cooled light trap and related method
VENTUREDYNE LTD37 citations92
US5731875AMar 24, 1998
Particle sensor with fiber optic conductor
VENTUREDYNE LTD41 citations90
US7752930B2Jul 13, 2010
Microbial gaseous-fluid sampler and method of operating the same
VENTUREDYNE LTD14 citations81
US5175596ADec 29, 1992
Liquid nephelometer
VENTUREDYNE LTD11 citations69
ENVIRONMENTAL SYSTEMS CORP
3 patentsUS4122719AOct 31, 1978
System for accurate measurement of temperature
ENVIRONMENTAL SYSTEMS CORP159 citations96
US4140395AFeb 20, 1979
Electro-optical method and system for in situ measurements of particle size and distribution
ENVIRONMENTAL SYSTEMS CORP34 citations92
US4017186AApr 12, 1977
Electro-optical method and system for in situ measurements of particulate mass density
ENVIRONMENTAL SYSTEMS CORP35 citations92
PPM INC
3 patentsUS4473296ASep 25, 1984
System and method and apparatus for a continuous aerosol monitor (CAM) using electro-optical weighing for general aerosols
PPM INC79 citations95
US4249244AFeb 3, 1981
Electro-optical system and method and apparatus for providing automatically-compensating, traceable calibration and zeroing for light scattering devices
PPM INC51 citations92
US4396286AAug 2, 1983
Electro-optical system and method and apparatus for providing automatically-compensating, traceable calibration and zeroing for light scattering devices
PPM INC6 citations62