David G. Williams
24Patents
12h-index
14Co-inventors
78Inventor score
Filing activity: Apr 19, 1974 → Nov 29, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4670748A | Programmable chip select decoder | Physics | 53 | Expired |
| US5467641A | Method of and apparatus for detecting fuel system leak | Performing Operations; Transporting | 47 | Expired |
| US4788444A | Liquid level detection | Physics | 43 | Expired |
| US4686384A | Fuse programmable DC level generator | Physics | 32 | Expired |
| US4204190A | Brake pad wear detection system | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5157613A | Adaptive control system for an engine | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5001645A | Adaptive control system for an engine | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6725769B1 | Method and apparatus for applying a viscous or paste material onto a substrate | Electricity | 19 | Expired |
| US5050556A | Control system for an internal combustion engine | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5672823A | Front-removable gauge | Performing Operations; Transporting | 15 | Expired |
| US5979312A | Support frame and stencil having flexible end regions for attachment to the support frame | Electricity | 15 | Expired |
| US4761570A | Programmable logic device with programmable signal inhibition and inversion means | Electricity | 15 | Expired |
| US6067903A | Apparatus for supporting and tensioning a stencil | Electricity | 12 | Expired |
| US5463827A | Display device | Electricity | 11 | Expired |
| US4574835A | Valve component | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4283719A | Liquid level sensing circuit | Physics | 9 | Expired |
| US6123024A | Stencil incorporating electronic tag | Performing Operations; Transporting | 8 | Expired |
| US6289804A | Apparatus for supporting and tensioning a stencil | Electricity | 7 | Expired |
| US5394746A | Hot wire flow rate measuring circuit | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6533557B1 | Positive displacement pump | Emerging Cross-Sectional Technologies | 3 | Expired |
| US3945153A | Grinding machine with tilted conveyor and conveyor clearing means | Performing Operations; Transporting | 2 | Expired |
| US7040523B2 | Method and apparatus for applying viscous or paste material onto a substrate | Electricity | 1 | Expired |
| US7000538B2 | Stencil and apparatus for supporting and tensioning the stencil | Electricity | 0 | Expired |
| US6237489A | Apparatus for supporting and tensioning a stencil | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.