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| US4037132 | 6 Jan 1976 | 19 Jul 1977 | International Telephone and Telegraph Corporation | Image tube power supply |
| US4382180 | 30 May 1979 | 3 May 1983 | English Electric Valve Company Limited | Image intensifier devices |
| US4383169 | 30 May 1979 | 10 May 1983 | English Electric Valve Company Limited | Luminescent screen devices |
| US4385232 | 30 May 1979 | 24 May 1983 | English Electric Valve Company Limited | Image intensifier devices |
| US4723096 | 27 Jun 1986 | 2 Feb 1988 | The United States of America as represented by the Administrator of the National Aeronautics and Space Administration | Arc lamp power supply using a voltage multiplier |
