| Patents for H05B 31 - Electric arc lamps (423) |
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| 08/30/1983 | CA1153056A1 Arc lamp lighting unit with low and high light levels |
| 08/30/1983 | CA1153055A1 Arc lamp lighting unit with means to prevent prolonged application of starting potentials |
| 05/31/1983 | CA1147476A1 Circuit for starting and ballasting arc discharge lamps |
| 01/06/1981 | US4243833 Carbon electrode for arc lamp |
| 05/06/1980 | CA1077125A1 Metastable argon stabilized arc devices for spectroscopic analysis |
| 02/27/1979 | US4142127 Control means for controlling the position of an electrode in a carbon arc lamp |
| 01/02/1979 | CA1045675A2 Spark sources with electronic switching tubes |
| 09/12/1978 | US4114067 Electrode operating mechanism for carbon arc lamp |
| 08/29/1978 | CA1037552A1 Low-voltage starting means for arc lamp |
| 11/29/1977 | US4060708 Metastable argon stabilized arc devices for spectroscopic analysis |
| 02/01/1977 | US4006380 Mounting of carbon electrodes on a holder of an arc lamp |
| 02/01/1977 | US4006379 Carbon electrodes for an ultraviolet arc lamp for use in a light-fastness tester |
| 01/25/1977 | US4005326 Electrode mounting in an arc lamp for use in light fastness testers |
| 01/25/1977 | US4005325 Carbon electrode for emitting light similar to sunshine for light-fastness testing |
| 01/18/1977 | US4003615 Coated carbon electrode having an inner coating of low resistance material |
| 01/11/1977 | US4002942 Process for joining electrodes and product resulting therefrom |
| 10/12/1976 | US3986063 Carbon arc lamp provided with means to prevent ash deposition |
| 07/20/1976 | US3970883 Arc lamp with movable electrode |
| 03/09/1976 | US3943396 High luminous intensity arc electrode of lantanum chromite |
| 02/24/1976 | US3940653 Arc discharge device, in particular a plasma burner |
| 01/20/1976 | US3934166 Offset stinger for arc lamp |
| 01/13/1976 | US3932785 Carbon electrode support |
| 01/13/1976 | US3932784 Double section carbon electrode |