David L. Layden
9Patents
7h-index
14Co-inventors
56Inventor score
Filing activity: Mar 4, 1986 → Mar 29, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5602462A | Uninterruptible power system | Emerging Cross-Sectional Technologies | 397 | Expired |
| US6310783A | Modular method and apparatus for building an uninterruptible power system (UPS) | Emerging Cross-Sectional Technologies | 124 | Expired |
| US5619076A | Method and apparatus for connection and disconnection of batteries to uninterruptible power systems and the like | Electricity | 39 | Expired |
| US6266260A | Inverter having center switch and uninterruptible power supply implementing same | Electricity | 34 | Expired |
| US7132833B2 | System for detecting defective battery packs | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5182518A | Inverter and battery testing for uninterruptible power systems | Physics | 24 | Expired |
| US4692854A | Method and apparatus for modulating inverter pulse width | Electricity | 20 | Expired |
| US4717996A | Gated parallel power switching devices protection circuit | Electricity | 7 | Expired |
| US5001399A | Power supply for vacuum fluorescent displays | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.