Joseph Wu
22Patents
7h-index
31Co-inventors
69Inventor score
Filing activity: Nov 21, 1975 → Dec 28, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6791473B2 | Smart parking meter system | Physics | 94 | Expired |
| US4027332A | Apparatus for monitoring television receivers | Electricity | 57 | Expired |
| US4710970A | Method of and apparatus for generating a frequency modulated ultrahigh frequency radio transmission signal | Electricity | 23 | Expired |
| US6265684A | Wafer ID optical sorting system | Performing Operations; Transporting | 9 | Expired |
| US6719670B1 | One-way output device with a clockwise-counterclockwise rotating unit | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5065450A | Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system | Electricity | 7 | Expired |
| US6479852B1 | Memory cell having a deep trench capacitor and a vertical channel | Electricity | 7 | Expired |
| US5046124A | Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system | Electricity | 6 | Expired |
| US6677740B1 | Applied control system of the power periphery of a health apparatus having function of power generation | Human Necessities | 5 | Expired |
| US6633793B2 | Method to reduce lot-to-lot variation of array threshold voltage in a DRAM device | Electricity | 5 | Expired |
| USRE34540E | Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system | General | 4 | Expired |
| US6312983A | Etching method for reducing bit line coupling in a DRAM | Electricity | 4 | Expired |
| US6578177B2 | Method to improve isolation layer fill in a DRAM array area | Electricity | 3 | Expired |
| US5698239A | Heating mechanism for zipper forming machines | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6942603B1 | Control system of resisting and assisting force for a rehabilitation apparatus | Human Necessities | 3 | Expired |
| US5688539A | Zipper teeth forming mechanism for zipper forming machines | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6837124B2 | Directly-driven power swing rod device without dead points | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6187650A | Method for improving global planarization uniformity of a silicon nitride layer used in the formation of trenches by using a sandwich stop layer | Electricity | 2 | Expired |
| US10888958B2 | Hybrid high temperature lead-free solder preform | Performing Operations; Transporting | 1 | Active |
| US10170313B2 | Systems and methods for a tunable electromagnetic field apparatus to improve doping uniformity | Electricity | 0 | Active |
| USRE34499E | Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system | General | 0 | Expired |
| US10734231B2 | Systems and methods for a tunable electromagnetic field apparatus to improve doping uniformity | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.