H01J 31/065
For electrography or electrophotography, for transferring a charge pattern through the faceplate
Official title: {for electrography or electrophotography, for transferring a charge pattern through the faceplate (leading-in arrangements H01J29/90; Lenard tubes H01J33/00; electrography or electrophotography per se G03C)}
H01J31/065 (For electrography or electrophotography, for transferring a charge pattern through the faceplate) appears on 13 US grants and 0 published applications in this corpus.
Search patents in H01J- Granted patents
- 13
- Published applications
- 0
- Assignees
- 9
- Inventors
- 14
- Latest grant
- 5 Sep 1989
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Charge transfer signal processor and charge transfer feedthrough plate fabrication assembly and method5 Sep 1989US 4,863,759 AOptron Systems, Inc.
- Charge transfer signal processor27 Dec 1988US 4,794,296 AOptron System, Inc.
- Electron beam window15 Jan 1985US 4,494,036 AHewlett-Packard Company
- Method and apparatus for controlling electrode voltage in electron beam tubes27 Dec 1983US 4,423,354 AKCR Technology, Inc.
- Electrostatic printing apparatus including an electron beam tube18 May 1982US 4,330,789 AThorn EMI plc
No published applications in this class yet.
Most cited
By later US patents
- Charge transfer signal processor15US 4,794,296 AOptron System, Inc. · 1988
- Electron beam window14US 4,494,036 AHewlett-Packard Company · 1985
- Charge transfer signal processor and charge transfer feedthrough plate fabrication assembly and method8US 4,863,759 AOptron Systems, Inc. · 1989
- Device with control grid for electrostatographic reproduction of an optical image7US 4,005,438 AXerox Corporation · 1977
- Thermal image camera6US 4,031,393 AThe United States of America as represented by the Secretary of the Army · 1977