RK

Robertus A. J. Keijser

U.S. Philips: 7 patents #535 of 8,851Top 7%
Overall (All Time): #761,672 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6300729 Metal halide lamp with increased lamp voltage Johannes G. W. Etman, Hannelore Marie Lea Elise Herremans 2001-10-09
5923127 High-pressure discharge lamp with miniature discharge vessel and integrated circuitry Oscar Deurloo, Aswin J. G. Linden, Arthur Kimmels, Willem J. Van Den Hoek 1999-07-13
5461285 Switching arrangement Franciscus A. M. Schleijpen, Machiel A. M. Hendrix 1995-10-24
5153482 High-pressure sodium discharge lamp Monique M. F. Eerdekens 1992-10-06
5103141 Switching arrangement for increasing the white life of a high pressure sodium lamp Petrus A. M. Weerdestein 1992-04-07
5097176 High-pressure sodium discharge lamp having a color temperature of at least 2800.degree. K. Johannes T. W. De Hair, Johannes H. M. Van Der Sande, Monique M. F. Eerdekens 1992-03-17
4213100 Gas discharge laser Gustaaf A. Wesselink, Bram J. Derksema, Johannes A. T. Verhoeven 1980-07-15