David M. Mathis
12Patents
9h-index
32Co-inventors
68Inventor score
Filing activity: Aug 2, 1991 → Apr 27, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5131231A | Method for operating a closed Brayton engine and engine adapted for use with method | Mechanical Engineering; Lighting; Heating | 73 | Expired |
| US5636848A | Oil seal for a high speed rotating shaft | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US5256537A | Culturette safety sleeve | Emerging Cross-Sectional Technologies | 23 | Expired |
| US7033134B2 | Air turbine starter having a force balanced, pressure energized, weighted check valve | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5574246A | Underwater vehicle with improved jet pump propulsion configuration | Performing Operations; Transporting | 16 | Expired |
| US7186081B2 | Air turbine starter enhancement for clearance seal utilization | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5425915A | Culturette safety sleeve | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7367427B2 | Accessory lubrication system for a turbine plant | Mechanical Engineering; Lighting; Heating | 11 | Active |
| US7251550B2 | Aircraft accessory monitor | Physics | 10 | Expired |
| US7232289B2 | Shroud for an air turbine starter | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7491127B2 | Spline with lubricant retention feature for use in torque limiter | Emerging Cross-Sectional Technologies | 5 | Active |
| US7413418B2 | Fluidic compressor | Mechanical Engineering; Lighting; Heating | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.