Merrill P. Spencer
6Patents
5h-index
10Co-inventors
60Inventor score
Filing activity: Mar 25, 1974 → May 20, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6635017B1 | Method and apparatus combining diagnostic ultrasound with therapeutic ultrasound to enhance thrombolysis | Human Necessities | 142 | Expired |
| US7771358B2 | System and method for grading microemboli monitored by a multi-gate doppler ultrasound system | Human Necessities | 119 | Active |
| US5348015A | Method and apparatus for ultrasonically detecting, counting and/or characterizing emboli | Human Necessities | 55 | Expired |
| US7425198B2 | Method and apparatus for automatic location of blood flow with Doppler ultrasound | Human Necessities | 47 | Expired |
| US4109642A | Apparatus for ultrasonic arteriography | Physics | 30 | Expired |
| US5042490A | Method for diagnosis of early stage of optic nerve blood supply disturbance | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.