NASTER BERT K has a total of 11 patent applications. Its first patent ever was published in 1941. It filed its patents most often in United States and Canada. Its main competitors in its focus markets electrical machinery and energy, machines and control are METRON DESIGNS LTD, NAT INV S CORP and KATSURAI MAKOTO.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | Canada | 2 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Machines | |
#3 | Control |
# | Name | Total Patents |
---|---|---|
#1 | Naster Bert K | 11 |
Publication | Filing date | Title |
---|---|---|
US3235789A | Voltage regulators | |
US3021473A | Voltage regulators | |
US2886767A | Electromagnetic voltage regulator | |
US2885597A | Ballasts for gaseous discharge lamps | |
US2545164A | Instant-start device for energizing a pair of fluorescent lamps | |
US2545163A | Silent energizing device for use with fluorescent lamp assemblies | |
US2436661A | Electrical socket | |
US2305487A | Lighting device | |
US2331040A | Switch for controlling operation of gaseous discharge lamps | |
CA605712A | Voltage regulator | |
CA630758A | Ballasts for gaseous discharge lamps |