TP

Theo J. A. Popma

U.S. Philips: 5 patents #914 of 8,851Top 15%
Overall (All Time): #1,062,951 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4820926 Radiation conversion screen Jacob Den Boer 1989-04-11
4751148 Luminescent aluminoborate glass and luminescent screen provided with such a glass Hendrik J. M. Joormann 1988-06-14
4492721 Method of providing magnesium fluoride layers Paul H. Joosten, Hendrikus J. P. Nabben, Henricus A. M. Van Hal, Jan Haisma 1985-01-08
4475032 Plasma spraying of conversion screens Gerhardus A. te Raa, Adrianus T. Vink 1984-10-02
4199621 Method of producing iron oxide photo masks Maria G. J. Kamminga-Schrijnemakers 1980-04-22