WJ

Wilhelmus Janssens

AN Agfa-Gevaert Nv: 66 patents #6 of 1,819Top 1%
U.S. Philips: 6 patents #699 of 8,851Top 8%
AN Agfa-Gavaert N.V.: 1 patents #2 of 17Top 15%
📍 Aarschot, BE: #1 of 49 inventorsTop 3%
Overall (All Time): #27,349 of 4,157,543Top 1%
73
Patents All Time

Issued Patents All Time

Showing 26–50 of 73 patents

Patent #TitleCo-InventorsDate
5422334 Dye-donor elements for thermal dye transfer recording Luc Vanmaele 1995-06-06
5420097 Dye-donor element comprising magenta-coloured tricyanovinylaniline dyes Luc Vanmaele 1995-05-30
5397762 Dye-donor element comprising tricyanovinylaniline dyes Luc Vanmaele 1995-03-14
5380619 Polymeric phosphonium mordant and photographic element containing the same Daniel, M. Timmerman, Daniel A. Claeys 1995-01-10
5328887 Thermally transferable fluorescent compounds Luc Vanmaele 1994-07-12
5326666 Dye-donor element for use in thermal dye sublimation transfer Luc Vanmaele 1994-07-05
5326676 Dye-donor element for use according to laser-induced thermal dye transfer Luc Vanmaele 1994-07-05
5324621 Dyes and dye-donor elements for thermal dye transfer recording Luc Vanmaele 1994-06-28
5314860 Method of stabilizing a material for use in a thermal dye transfer imaging process Luc Vanmaele 1994-05-24
5262271 Negative silver salt diffusion transfer material Jean-Pierre Tahon 1993-11-16
5246908 Dyes for use in thermal dye transfer Luc Vanmaele 1993-09-21
5229353 Thermal transfer printing with ultra-violet absorbing compound Luc Vanmaele 1993-07-20
5169828 Black colored thermal dye sublimation transfer donor element Luc Vanmaele 1992-12-08
5151405 Modified dextran binder for use in thermal dye transfer Herman Uytterhoeven, Joan Vermeersch, Jan A. Van der Bogaert 1992-09-29
5122499 Thermal dye sublimation transfer printing method Luc Vanmaele 1992-06-16
5084435 Dye-donor element for use in thermal dye sublimation transfer Luc Vanmaele 1992-01-28
5082823 Cyan dyes for use in thermal dye sublimation transfer Luc Vanmaele 1992-01-21
5043316 Dye-donor element for use in thermal dye sublimation transfer Luc Vanmaele 1991-08-27
5037731 Organic compounds for use in a dye diffusion transfer process and photographic elements incorporating them Hans Vetter, Christian C. Van de Sande, Luc Vanmaele, Armand M. Van den Bergh 1991-08-06
5021393 Cyan dyes in dye-donor elements for thermal dye transfer Luc Vanmaele 1991-06-04
4987119 Cyan dyes in dye-donor elements for use in thermal dye transfer methods Luc Vanmaele 1991-01-22
4987043 Method for the production of a multicolor filter array Raymond Roosen, Marcellus H. De Meyer 1991-01-22
D305971 Fryer 1990-02-13
4861818 Method for the preparation of stable aqueous dispersions of polymer beads and the use of these dispersions in photographic elements Daniel M. Timmerman, Jan J. Priem 1989-08-29
4855211 Polymeric phosphonium mordant and photographic element containing the same Daniel M. Timmerman, Daniel A. Claeys 1989-08-08