|
| US3949211 | 21 Jun 1974 | 6 Apr 1976 | Westinghouse Electric Corporation | Luminaire having ballast circuitry in photocontrol housing |
| US4044249 | 15 Dec 1975 | 23 Aug 1977 | A Division of Varo, Inc. Biometrics Instrument Corporation | Voltage supply including bilateral attenuator |
| US4121136 | 12 May 1977 | 17 Oct 1978 | Etat Francais | Apparatus for feeding discharge lamps from a direct current source |
| US4394603 | 2 Apr 1981 | 19 Jul 1983 | Controlled Environment Systems Inc. | Energy conserving automatic light output system |
| US4555741 | 1 Jun 1984 | 26 Nov 1985 | Ken Hayashibara | Device for eliminating inrush-current |
| US4612479 | 20 Jul 1984 | 16 Sep 1986 | Honeywell Inc. | Fluorescent light controller |
| US4682084 | 28 Aug 1985 | 21 Jul 1987 | Innovative Controls, Incorporated | High intensity discharge lamp self-adjusting ballast system sensitive to the radiant energy or heat of the lamp |
| US4686428 | 18 Jun 1986 | 11 Aug 1987 | Innovative Controls, Incorporated | High intensity discharge lamp self-adjusting ballast system with current limiters and a current feedback loop |
| US4733135 | 6 May 1986 | 22 Mar 1988 | Intent Patents A.G. | Self-regulating, no load protected electronic ballast system |
| US4777410 | 22 Jun 1987 | 11 Oct 1988 | Innovative Controls, Inc. | Ballast striker circuit |
| US4999547 | 25 Sep 1986 | 12 Mar 1991 | Innovative Controls, Incorporated | Ballast for high pressure sodium lamps having constant line and lamp wattage |
| US5057748 | 16 Oct 1989 | 15 Oct 1991 | Everbrite, Inc. | Power supply circuit for gas discharge tube |
| US5075598 | 16 Oct 1989 | 24 Dec 1991 | Everbrite, Inc. | Power supply circuit for gas discharge tube |
| US5087860 | 16 Oct 1989 | 11 Feb 1992 | Everbrite, Inc. | Power supply circuit for gas discharge tube |
| US5352956 | 16 Oct 1989 | 4 Oct 1994 | Everbrite Electronics, Inc. | Power supply for gas discharge tube |
| US6181075 | 16 Oct 1989 | 30 Jan 2001 | Everbrite Electronics, Inc. | Power supply circuit for gas discharge tube |