Mark Marvin
35Patents
9h-index
22Co-inventors
75Inventor score
Filing activity: Nov 16, 1987 → Feb 16, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7139219B2 | Hydraulic impulse generator and frequency sweep mechanism for borehole applications | Emerging Cross-Sectional Technologies | 85 | Expired |
| US6237701A | Impulsive suction pulse generator for borehole | Fixed Constructions | 53 | Expired |
| US5704824A | Method and apparatus for abrasive water jet millins | Performing Operations; Transporting | 39 | Expired |
| US7201238B2 | Low friction face sealed reaction turbine rotors | Fixed Constructions | 26 | Expired |
| US4854091A | Abrasive swivel assembly and method | Performing Operations; Transporting | 22 | Expired |
| US7198456B2 | Floating head reaction turbine rotor with improved jet quality | Fixed Constructions | 21 | Expired |
| US8360369B2 | Emergency collective actuator and method for a helicopter | Performing Operations; Transporting | 19 | Active |
| US4936059A | Abrasive swivel assembly and method | Performing Operations; Transporting | 14 | Expired |
| US8651425B2 | Emergency collective actuator and method for a helicopter | Performing Operations; Transporting | 12 | Active |
| US9511856B2 | Emergency collective actuator and method for a helicopter | Performing Operations; Transporting | 9 | Active |
| US8910909B2 | Emergency collective actuator and method for a helicopter | Performing Operations; Transporting | 9 | Active |
| US7524160B2 | Hydrokinetic speed governor | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US9957041B2 | Advanced emergency collective actuator with friction pull-off and method for a helicopter | Performing Operations; Transporting | 5 | Active |
| US6318194A | Furnace tube inspection apparatus | Physics | 5 | Expired |
| US9789958B2 | Emergency collective actuator and method for a helicopter | Performing Operations; Transporting | 5 | Active |
| US9272780B2 | Rotorcraft autopilot and methods | Emerging Cross-Sectional Technologies | 4 | Active |
| US10464662B2 | Rotorcraft autopilot system, components and methods | Emerging Cross-Sectional Technologies | 2 | Active |
| US9150308B2 | Rotorcraft autopilot system, components and methods | Emerging Cross-Sectional Technologies | 2 | Active |
| US10843796B2 | Rotorcraft advanced autopilot control arrangement and methods | Emerging Cross-Sectional Technologies | 2 | Active |
| US9650125B2 | Control interface, system and method | Physics | 2 | Active |
| US10919622B2 | Advanced emergency collective actuator with friction pull-off and method for a helicopter | Performing Operations; Transporting | 1 | Active |
| US8915311B2 | Method and apparatus for drilling a zero-radius lateral | Fixed Constructions | 1 | Active |
| US10124882B2 | Control interface, system and method | Physics | 1 | Active |
| US10351231B2 | Rotorcraft autopilot and methods | Emerging Cross-Sectional Technologies | 1 | Active |
| US9415862B2 | Control interface, system and method | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.