Michael T. Shepherd
8Patents
7h-index
7Co-inventors
52Inventor score
Filing activity: May 21, 1985 → Jan 14, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5727546A | Powder inhaler with breath flow regulation valve | Human Necessities | 165 | Expired |
| US6109261A | Powder inhaler with breath flow regulation valve | Human Necessities | 81 | Expired |
| US4642230A | Release device | Human Necessities | 72 | Expired |
| US6138673A | Inhalation device and method | Human Necessities | 50 | Expired |
| US5162116A | Intra-ruminal device for delivering drugs | Performing Operations; Transporting | 11 | Expired |
| US5074857A | Bolus for releasing a biologically active substance into a liquid environment | Human Necessities | 7 | Expired |
| US4867980A | Heavy density depot | Human Necessities | 7 | Expired |
| US4883484A | Delivery device | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.