Qinghua Chen
15Patents
2h-index
30Co-inventors
54Inventor score
Filing activity: Dec 3, 1999 → Dec 6, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD956768S1 | Notebook computer stand | General | 14 | Active |
| USD986235S1 | Smartphone stand | General | 9 | Active |
| US6268751A | Duty cycle optimized prescaler | Electricity | 2 | Expired |
| US8114184B2 | Honeycomb ceramic particulate filtration substrate, a particulate filter and a filtration system as well as production methods thereof | Chemistry; Metallurgy | 2 | Active |
| US11073189B2 | Pre-compression type emergency air spring assembly | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8462838B2 | Programmable SFP or SFP+ module | Electricity | 1 | Active |
| USD1064257S1 | Snorkel mask | General | 1 | Active |
| US11287006B2 | Emergency air spring assembly | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12164838B1 | Intelligent drawing-model checking method and apparatus | Physics | 0 | Active |
| US11873719B2 | Gas-liquid spray dust settlement system for fully mechanized mining face | Fixed Constructions | 0 | Active |
| US11492906B2 | Sprayer for settling dust of coal mine | Fixed Constructions | 0 | Active |
| USD1063064S1 | Snorkel mask | General | 0 | Active |
| US9042689B2 | Optical switch and optical switch array | Physics | 0 | Active |
| USD1070571S1 | Storage strap | General | 0 | Active |
| US11287007B2 | Prepressed emergency air spring assembly | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.