PZ

Pieter Zalm

U.S. Philips: 3 patents #1,741 of 8,851Top 20%
Overall (All Time): #1,682,318 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4476214 Optical information disk comprising tellurium, selenium and antimony Bernardus A. J. Jacobs, Adriaan W. De Poorter 1984-10-09
4290075 Optical recording device having several ablative recording layers Bernardus A. J. Jacobs, Adriaan W. De Poorter 1981-09-15
4230939 Information-recording element having a dye-containing auxiliary layer Marinus R. J. de Bont, Petrus J. Kivits, Cornelis J. Schoot 1980-10-28