Andrew Cheung
34Patents
19h-index
32Co-inventors
81Inventor score
Filing activity: Jun 13, 1990 → Oct 25, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6935337B2 | Humidifier with structure to prevent backflow of liquid through the humidifier inlet | Emerging Cross-Sectional Technologies | 198 | Expired |
| USD493520S1 | Flow generator casing | General | 143 | Expired |
| US6938076B2 | System, computer product and method for interfacing with a private communication portal from a wireless device | Electricity | 133 | Expired |
| USD493884S1 | Flow generator casing with humidifier | General | 128 | Expired |
| US7137388B2 | Air pressure signal monitoring in apparatus for treating sleep disordered breathing | Human Necessities | 123 | Expired |
| USD467335S1 | Air delivery device | General | 119 | Expired |
| USD468011S1 | Air delivery device | General | 114 | Expired |
| US7614398B2 | Humidifier with structure to prevent backflow of liquid through the humidifier inlet | Emerging Cross-Sectional Technologies | 109 | Active |
| USD487311S1 | Air delivery device | General | 104 | Expired |
| USRE44453E1 | Humidifier with structure to prevent backflow of liquid through the humidifier inlet | General | 99 | Active |
| USD498527S1 | Humidifier assembly | General | 88 | Expired |
| USD454393S1 | Flow generator | General | 68 | Expired |
| USD476077S1 | Air delivery device | General | 56 | Expired |
| USD503796S1 | Control panel for an air delivery device | General | 49 | Expired |
| USD497203S1 | Air delivery device | General | 44 | Expired |
| US6928479B1 | System computer product and method for providing a private communication portal | Electricity | 33 | Expired |
| USD477868S1 | Air delivery device | General | 26 | Expired |
| USD464724S1 | Flow generator | General | 26 | Expired |
| USRE46079E1 | Humidifier with structure to prevent backflow of liquid through the humidifier inlet | General | 24 | Active |
| USRE46571E1 | Humidifier with structure to prevent backflow of liquid through the humidifier inlet | General | 17 | Active |
| US5352596A | Pseudorabies virus deletion mutants involving the EPO and LLT genes | Emerging Cross-Sectional Technologies | 15 | Expired |
| USD486916S1 | Patient management module | General | 9 | Expired |
| US8234701B2 | System, method and computer program for remotely sending digital signal(s) to a computer | Electricity | 6 | Active |
| US10628172B2 | Systems and methods for using distributed universal serial bus (USB) host drivers | Emerging Cross-Sectional Technologies | 2 | Active |
| US11669833B1 | Blockchain endpoint protection | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.