Malcolm Williams
25Patents
16h-index
12Co-inventors
78Inventor score
Filing activity: Aug 2, 1979 → Aug 10, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7188621B2 | Portable ventilator system | Mechanical Engineering; Lighting; Heating | 262 | Expired |
| US5868133A | Portable drag compressor powered mechanical ventilator | Human Necessities | 216 | Expired |
| US6877511B2 | Portable drag compressor powered mechanical ventilator | Human Necessities | 197 | Expired |
| US6526970B2 | Portable drag compressor powered mechanical ventilator | Human Necessities | 175 | Expired |
| US5127400A | Ventilator exhalation valve | Human Necessities | 167 | Expired |
| US5694926A | Portable drag compressor powered mechanical ventilator | Human Necessities | 142 | Expired |
| US7222623B2 | Portable drag compressor powered mechanical ventilator | Human Necessities | 122 | Expired |
| US7849854B2 | Portable drag compressor powered mechanical ventilator | Human Necessities | 111 | Expired |
| US5881722A | Portable drag compressor powered mechanical ventilator | Human Necessities | 98 | Expired |
| US7527053B2 | Method and apparatus for attenuating compressor noise | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US6046518A | Axial gap electrical machine | Emerging Cross-Sectional Technologies | 41 | Expired |
| US8627819B2 | Portable ventilator system | Mechanical Engineering; Lighting; Heating | 31 | Active |
| US8156937B2 | Portable ventilator system | Human Necessities | 28 | Active |
| US8297279B2 | Portable ventilator system | Mechanical Engineering; Lighting; Heating | 23 | Active |
| US8522780B2 | Portable ventilator system | Mechanical Engineering; Lighting; Heating | 23 | Active |
| US8683997B2 | Portable ventilator system | Mechanical Engineering; Lighting; Heating | 21 | Active |
| US7607437B2 | Compressor control system and method for a portable ventilator | Human Necessities | 9 | Active |
| US8677995B2 | Compressor control system for a portable ventilator | Human Necessities | 6 | Active |
| US9962514B2 | Ventilator flow valve | Human Necessities | 4 | Active |
| US4268885A | GFI Sensor circuit | Electricity | 3 | Expired |
| US9713438B2 | Flow sensor | Human Necessities | 2 | Active |
| US8888711B2 | Flow sensor | Human Necessities | 2 | Active |
| US9433743B2 | Ventilator exhalation flow valve | Human Necessities | 0 | Active |
| US9962515B2 | Ventilator exhalation flow valve | Human Necessities | 0 | Active |
| US9375166B2 | Flow sensor | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.