HW

Harm Wierenga

Philips: 3 patents #1,693 of 7,731Top 25%
U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #1,262,456 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6904011 Multilayer record carrier with shifted recording start and stop positions Roel Van Woudenberg 2005-06-07
6711110 Method of recording a multi-layer optically recordable information carrier 2004-03-23
6552985 Method of recording a multi-layer optically recordable information carrier 2003-04-22
6190750 Rewritable optical information medium Johannes C. N. Rijpers 2001-02-20