Peter E. Haferl
56Patents
11h-index
10Co-inventors
75Inventor score
Filing activity: Feb 10, 1975 → Apr 29, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4687972A | Raster distortion correction circuitry for a video display apparatus that includes a square-planar picture tube | Electricity | 21 | Expired |
| US4634937A | East-west correction circuit | Electricity | 20 | Expired |
| US4532457A | Television receiver standby circuit | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4547708A | Variable picture size circuit for a television receiver | Electricity | 19 | Expired |
| US4829415A | Push-pull drive circuit for a power converter | Electricity | 19 | Expired |
| US4048544A | Switched vertical deflection system | Electricity | 16 | Expired |
| US4488181A | Electron beam suppression circuit for a television receiver | Electricity | 15 | Expired |
| US5083198A | Nonlinear RGB video signal processing | Electricity | 15 | Expired |
| US4232254A | Regulated deflection circuit | Electricity | 14 | Expired |
| US4429257A | Variable horizontal deflection circuit capable of providing east-west pincushion correction | Electricity | 13 | Expired |
| US4468593A | Horizontal drive and nonlinearity correction circuit | Electricity | 11 | Expired |
| US5313294A | Beam current limiting arrangement having a peak amplitude, responsive threshold | Electricity | 10 | Expired |
| US4516058A | Linearity corrected horizontal deflection circuit | Electricity | 10 | Expired |
| US4719392A | Raster correction circuit | Electricity | 10 | Expired |
| US5402044A | Raster distortion avoidance arrangement | Electricity | 10 | Expired |
| US4088931A | Pincushion correction circuit | Electricity | 9 | Expired |
| US4101814A | Side pincushion distortion correction circuit | Electricity | 9 | Expired |
| US5287042A | Display aspect ratio adaptation | Electricity | 8 | Expired |
| US4682085A | Gullwing distortion corrected deflection circuitry for a square-planar picture tube | Electricity | 8 | Expired |
| US5115171A | Raster distortion correction circuit | Physics | 8 | Expired |
| US4668897A | North-south pincushion corrected deflection circuit | Electricity | 8 | Expired |
| US4565949A | Television raster distortion correction circuit | Electricity | 8 | Expired |
| US5399945A | Raster distortion correction circuit | Electricity | 8 | Expired |
| US4906902A | Raster distortion corrected deflection circuit | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4737881A | Resonant degaussing apparatus | Electricity | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.