Michael Murphy
28Patents
11h-index
31Co-inventors
75Inventor score
Filing activity: Nov 4, 1985 → Sep 9, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7084475B2 | Lateral conduction Schottky diode with plural mesas | Electricity | 78 | Expired |
| US6533216B1 | System and methods for providing under-wrap access to optical fiber wound onto spools | Performing Operations; Transporting | 48 | Expired |
| US7501670B2 | Cascode circuit employing a depletion-mode, GaN-based FET | Electricity | 46 | Active |
| US7115896B2 | Semiconductor structures for gallium nitride-based devices | Electricity | 38 | Expired |
| US5844451A | Circuit element having at least two physically separated coil-layers | Electricity | 29 | Expired |
| US6127886A | Switched amplifying device | Electricity | 24 | Expired |
| US7863172B2 | Gallium nitride semiconductor device | Electricity | 22 | Active |
| US7939853B2 | Termination and contact structures for a high voltage GaN-based heterojunction transistor | Electricity | 22 | Active |
| US7229866B2 | Non-activated guard ring for semiconductor devices | Electricity | 16 | Expired |
| US6643445B2 | Fiber optic spools and methods of making the same | Performing Operations; Transporting | 15 | Expired |
| US6351183B1 | Switched amplifying device | Electricity | 11 | Expired |
| US8928037B2 | Heterostructure power transistor with AlSiN passivation layer | Electricity | 8 | Active |
| US7253015B2 | Low doped layer for nitride-based semiconductor device | Electricity | 8 | Expired |
| US4654887A | Radio frequency mixer | Electricity | 8 | Expired |
| US5921036A | Drive-through restaurant | Fixed Constructions | 8 | Expired |
| USD437207S | Optical waveguide spool | General | 6 | Expired |
| US10207552B2 | Deployable containers, systems and methods for deploying containers | Performing Operations; Transporting | 6 | Active |
| US8169003B2 | Termination and contact structures for a high voltage GaN-based heterojunction transistor | Electricity | 6 | Active |
| USD561789S1 | Industrial compactor system | General | 5 | Expired |
| US7954426B2 | Compactor systems and methods for compacting a mass | Performing Operations; Transporting | 4 | Active |
| US7436039B2 | Gallium nitride semiconductor device | Electricity | 4 | Expired |
| USD499006S1 | Optical waveguide spool | General | 4 | Expired |
| US9574969B2 | Apparatuses for screen testing an optical fiber and methods for using the same | Emerging Cross-Sectional Technologies | 2 | Active |
| US5685789A | Speed measuring sports goal system | Human Necessities | 2 | Expired |
| US10446676B2 | Heterostructure power transistor with AlSiN passivation layer | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.