PH

Paul Christiaan van Hal

SB Sonion Nederland B.V.: 23 patents #3 of 106Top 3%
SB Sonionmicrotronic Nederland B.V.: 4 patents #1 of 24Top 5%
MB Microtronic Nederland, B.V.: 1 patents #5 of 10Top 50%
Overall (All Time): #136,573 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
7062058 Cylindrical microphone having an electret assembly in the end cover Michael G. M. Steeman, Hendrik Dolleman, Adrianus Maria Lafort, Jan Hijman, Dion Ivo de Roo +2 more 2006-06-13
6658134 Shock improvement for an electroacoustic transducer Benno Hartog 2003-12-02
6078677 Electroacoustic transducer with improved diaphragm attachment Henk Dolleman, Onno Geschiere, Engbert Wilmink 2000-06-20