Inventor
HASKER JAN
US16 patents
⚠️ This page may combine multiple inventors who share the name “HASKER JAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILIPS CORP
15 patentsUS4594220AJun 10, 1986
Method of manufacturing a scandate dispenser cathode and dispenser cathode manufactured by means of the method
PHILIPS CORP28 citations90
US5006753AApr 9, 1991
Scandate cathode exhibiting scandium segregation
PHILIPS CORP24 citations86
US5407633AApr 18, 1995
Method of manufacturing a dispenser cathode
PHILIPS CORP18 citations80
US5064397ANov 12, 1991
Method of manufacturing scandate cathode with scandium oxide film
PHILIPS CORP11 citations69
US5936334AAug 10, 1999
Impregnated cathode with composite top coat
PHILIPS CORP6 citations62
US4163169AJul 31, 1979
Low-pressure gas discharge lamp
PHILIPS CORP2 citations62
US4904897AFeb 27, 1990
Oxide cathode
PHILIPS CORP4 citations61
US4221988ASep 9, 1980
Low pressure gas discharge lamp having fibers evenly distributed between the electrodes
PHILIPS CORP2 citations59
US4143447AMar 13, 1979
Method of making a low-pressure gas discharge lamp
PHILIPS CORP2 citations59
US5261845ANov 16, 1993
Scandate cathode
PHILIPS CORP4 citations57
US4471260ASep 11, 1984
Oxide cathode
PHILIPS CORP4 citations57
US4101185AJul 18, 1978
Method for producing a low-pressure gas discharge lamp
PHILIPS CORP4 citations57
US5518520AMay 21, 1996
Dispenser cathode and method of manufacturing a dispenser cathode
PHILIPS CORP0 citations50
US4179777ADec 25, 1979
Method of producing a low-pressure gas discharge lamp
PHILIPS CORP1 citations48
US4277713AJul 7, 1981
Low-pressure gas discharge lamp and method for making
PHILIPS CORP1 citations43