JV

Johannes W. ter Vrugt

U.S. Philips: 1 patents #4,133 of 8,851Top 50%
📍 Geldrop, NL: #108 of 187 inventorsTop 60%
Overall (All Time): #3,947,250 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4727283 Low-pressure mercury vapour discharge lamp Johannes Trudo Cornelis Van Kemenade, Gerardus H. M. Siebers, Jean J. Heuvelmans, Johannes T. W. deHair 1988-02-23