Ronald A. Devries
8Patents
8h-index
12Co-inventors
66Inventor score
Filing activity: Mar 24, 1988 → Aug 16, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6645194B2 | Flexible disc obturator for a cannula assembly | Human Necessities | 128 | Expired |
| US6146371A | Oval-shaped cardiac cannula | Human Necessities | 51 | Expired |
| US5817071A | Oval-shaped cardiac cannula | Human Necessities | 49 | Expired |
| US6447484B1 | Flexible disc obturator for a cannula assembly | Human Necessities | 47 | Expired |
| US7276055B2 | Oval-shaped cardiac cannula | Human Necessities | 35 | Expired |
| US5082025A | Antegrade-retrograde switch and occluder and system for using the same | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4846804A | Combined needle protector and guidewire feeder | Human Necessities | 24 | Expired |
| US8167867B2 | Oval-shaped cardiac cannula | Human Necessities | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.