RG

Ronald Pierre Griessen

U.S. Philips: 1 patents #4,133 of 8,851Top 50%
📍 Kortenhoef, NL: #5 of 9 inventorsTop 60%
Overall (All Time): #2,074,104 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8474177 Reflecting device, solar collector, pitched roof provided with a solar collector of this type, and greenhouse Marinus Johannes Slaman 2013-07-02
5635729 Hydrogen-activated thin film switching device Johannes Huiberts, Jan Hendrik Rector 1997-06-03