John Collins
35Patents
20h-index
42Co-inventors
85Inventor score
Filing activity: Mar 19, 1975 → Jul 25, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5197955A | Universal seal for trocar assembly | Human Necessities | 380 | Expired |
| US5342315A | Trocar seal/protector assemblies | Human Necessities | 379 | Expired |
| US5314417A | Safety trocar | Human Necessities | 330 | Expired |
| US5350364A | Universal seal for trocar assembly | Human Necessities | 274 | Expired |
| US6047108A | Blood warming apparatus | Human Necessities | 118 | Expired |
| US5209736A | Trocar method and apparatus | Human Necessities | 109 | Expired |
| US6213044A | Water craft with adjustable fin | Performing Operations; Transporting | 70 | Expired |
| US4609563A | Metered charge system for catalytic coating of a substrate | Emerging Cross-Sectional Technologies | 63 | Expired |
| US4712740A | Venturi spray nozzle for a cleaning device | Human Necessities | 53 | Expired |
| US4550034A | Method of impregnating ceramic monolithic structures with predetermined amounts of catalyst | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4570856A | Liquid and detergent mixing chamber and valves | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5142968A | Automated deep fat fryer | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US5224415A | Frozen food storage and dispensing system | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US5846224A | Container for use with blood warming apparatus | Human Necessities | 33 | Expired |
| US5305615A | Frozen food storage & dispensing system | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US5319939A | Frozen food storage and dispensing system | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US4637322A | Adjustable computer work table | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6603378B1 | Magnetic switch assembly | Electricity | 24 | Expired |
| US5230279A | Frying apparatus | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| USD281488S | Cap for the bed of a pick-up truck | General | 21 | Expired |
| US4627655A | Pick-up cap construction | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5802452A | Multiple channel radio frequency repeater | Electricity | 18 | Expired |
| US4157201A | Pick-up truck camper door assembly | Performing Operations; Transporting | 17 | Expired |
| US3981045A | Stunning and overload circuit | Electricity | 17 | Expired |
| US4890561A | Extendable keyboard support assembly | Human Necessities | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.