John M. Dawson
16Patents
11h-index
18Co-inventors
69Inventor score
Filing activity: Aug 21, 1974 → Sep 3, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5735899A | Low profile intraosseous anterior spinal fusion system and method | Human Necessities | 263 | Expired |
| US6579321B1 | Intervertebral disc replacement prosthesis | Human Necessities | 196 | Expired |
| US3961197A | X-ray generator | Electricity | 72 | Expired |
| US7842072B2 | Spinal fixation device with variable stiffness | Human Necessities | 60 | Active |
| US4975655A | Method and apparatus for upshifting light frequency by rapid plasma creation | Physics | 25 | Expired |
| US8641609B2 | Surgical access system and method of using the same | Human Necessities | 20 | Active |
| USH554H | Toroidal reactor | General | 16 | Active |
| US4081677A | Isotope separation by magnetic fields | Performing Operations; Transporting | 15 | Expired |
| US4066893A | Isotope separation by ion waves | Performing Operations; Transporting | 12 | Expired |
| US4059761A | Separation of isotopes by time of flight | Performing Operations; Transporting | 12 | Expired |
| US8382840B2 | Spinal implant delivery methods and devices | Human Necessities | 11 | Active |
| US4213043A | Method for flowing a large volume of plasma through an excitation region | Performing Operations; Transporting | 11 | Expired |
| US8323322B2 | Medical implant formed from porous metal and method | Human Necessities | 7 | Active |
| US5780971A | Method and apparatus for generating radiation utilizing DC to AC conversion with a conductive front | Electricity | 7 | Expired |
| US4398872A | Auxiliary powered drive for roller pump used in cardiopulmonary bypass operations | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4937532A | Method of accelerating photons by a relativistic plasma wave | Electricity | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.