HK

Hendrik K. Kreeft

U.S. Philips: 3 patents #1,741 of 8,851Top 20%
PB Polygram International Holding B.V.: 1 patents #9 of 22Top 45%
Overall (All Time): #1,282,947 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5908234 Luminaire having a synthetic resin cover 1999-06-01
4699328 Method of filling a cassette with a length of magnetic tape Adrianus F. Teunissen 1987-10-13
4681280 Magnetic-tape cassette with stretched liner arrangement Jozef M. Duurland, Sinnighe J. Bos 1987-07-21
4632327 Apparatus for filling a cassette with a length of magnetic tape Adrianus F. Teunissen 1986-12-30