Inventor
PONKALA JORMA
FI9 patents
⚠️ This page may combine multiple inventors who share the name “PONKALA JORMA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VAISALA OY
7 patentsUS4295091AOct 13, 1981
Circuit for measuring low capacitances
VAISALA OY59 citations94
US5485747AJan 23, 1996
Method of measurement of relative humidity, in particular in radiosondes, and humidity detectors that make use of the method
VAISALA OY19 citations89
US5511418AApr 30, 1996
Method for measurement of relative humidity, in particular in radiosondes, and humidity detectors that make use of the method
VAISALA OY18 citations79
US5156045AOct 20, 1992
Method related to impedance detectors in radiosondes
VAISALA OY13 citations72
US4295090AOct 13, 1981
Electronic selector switch particularly for use in radioscondes
VAISALA OY10 citations72
US5631418AMay 20, 1997
Electrically detected impedance detector for the measurement of physical quantities, in particular of temperature or humidity, and process for the manufacture of said detectors
VAISALA OY14 citations71
US5557042ASep 17, 1996
Impedance detector, in particular for radiosonde operation, as well as a process for the manufacture of a detector
VAISALA OY8 citations71