Young-Hwan Choi
32Patents
5h-index
30Co-inventors
69Inventor score
Filing activity: Oct 2, 1992 → Apr 20, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US10516388B1 | Voltage generator, voltage waveform generator, semiconductor device manufacturing apparatus, voltage waveform generation method, and semiconductor device manufacturing method | Electricity | 9 | Active |
| USD347809S | Tricycle | General | 9 | Expired |
| USD663438S1 | Umbrella scaffolding structure | General | 8 | Active |
| US7170039B2 | Combined toaster and microwave oven | Electricity | 6 | Expired |
| US9602602B2 | Apparatus and method for identifying interoperability between object identifier-based heterogeneous identifier nodes for next generation network | Electricity | 5 | Active |
| US10104038B2 | Method of defining interface identifier (IID) of IPv6 address and a communication device operating the same | Electricity | 4 | Active |
| US5900730A | Magnetometer using two squids | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10165054B2 | Control system and method for IoT boilers using central management server | Physics | 1 | Active |
| US10034158B2 | Method of maintaining internet protocol (IP) connectivity in low power internet of things (IoT) communication device based on near field communication (NFC), and device operating the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US11408693B2 | System for automatically cleaning boiler pipes | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7361864B2 | Combined toaster and microwave oven | Electricity | 1 | Active |
| US11041662B2 | Instantaneous water heater having guide portion | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12215895B2 | Carbon monoxide leak alerting device and method | Physics | 0 | Active |
| US7312578B2 | Plasma lighting bulb with metal provided in grooves formed on surface thereof | Electricity | 0 | Expired |
| US11035588B2 | Boiler with heating blower | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10159399B2 | Dust suction apparatus | Human Necessities | 0 | Active |
| US11333400B2 | Hot water storage-type boiler having both heat amount proportional control function and backflow prevention function | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12117206B2 | System and method for discharging carbon monoxide by using carbon monoxide leakage alarm device | Physics | 0 | Active |
| US10551096B2 | Combined heat and power system with energy control module | Emerging Cross-Sectional Technologies | 0 | Active |
| US12431199B2 | Memory device and operating method of the memory device | Physics | 0 | Active |
| US10928099B2 | Boiler with gas sensing and earthquake sensing function and control method thereof | Electricity | 0 | Active |
| US12235147B2 | Apparatus and method for sensing water level | Physics | 0 | Active |
| US11578864B2 | Method of automatically cleaning boiler pipes | Performing Operations; Transporting | 0 | Active |
| US11348647B2 | Memory device and method of operating the same | Electricity | 0 | Active |
| US10900693B2 | Hot water storage boiler having scale prevention function | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.