Richard Hannah
10Patents
9h-index
11Co-inventors
69Inventor score
Filing activity: Mar 16, 1979 → May 11, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4248214A | Illuminated urethral catheter | Human Necessities | 181 | Expired |
| US4292270A | Method and apparatus for making coude catheters | Performing Operations; Transporting | 33 | Expired |
| US4793652A | Orthopaedic seating device | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4317550A | Apparatus for suspending a drainage bag | Human Necessities | 19 | Expired |
| US5357955A | Reinforced catheter probe | Human Necessities | 18 | Expired |
| US8177773B2 | Locking medical catheter | Human Necessities | 15 | Active |
| US4256135A | High flow lined valve for medical applications | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4368023A | Apparatus for making coude catheters | Performing Operations; Transporting | 11 | Expired |
| US9079006B1 | Suture locking mechanism | Human Necessities | 10 | Active |
| US5339671A | Calibration cuvette | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.