David M. Walker
9Patents
7h-index
20Co-inventors
63Inventor score
Filing activity: Aug 3, 1979 → Oct 19, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6775646B1 | Excitation signal and radial basis function methods for use in extraction of nonlinear black-box behavioral models | Physics | 38 | Expired |
| US4661709A | Modular all-electrostatic electron-optical column and assembly of said columns into an array and method of manufacture | Electricity | 28 | Expired |
| US4665315A | Method and apparatus for in-situ plasma cleaning of electron beam optical systems | Electricity | 28 | Expired |
| US4661203A | Low defect etching of patterns using plasma-stencil mask | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4419580A | Electron beam array alignment means | Electricity | 25 | Expired |
| US4262644A | Spark timing control circuit for controlling the timing of spark ignition of an internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5678734A | Instant hot water dispenser | Human Necessities | 12 | Expired |
| US4667108A | Impedance matched and thermally cooled deflection amplifiers for charged particle beam apparatus employing deflectors | Electricity | 3 | Expired |
| US8680758B2 | Spark plug having a plastic upper insulator and method of construction | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.