David Chen
46Patents
17h-index
13Co-inventors
78Inventor score
Filing activity: Jul 18, 1985 → Feb 12, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6615832B1 | Wear article with detachable interface assembly | Human Necessities | 215 | Expired |
| US5538265A | Retractable step for a truck | Performing Operations; Transporting | 97 | Expired |
| US5897460A | Dual action air resistance treadmill | Human Necessities | 67 | Expired |
| US5078389A | Exercise machine with three exercise modes | Human Necessities | 67 | Expired |
| US4871141A | Adjustable umbrella support | Mechanical Engineering; Lighting; Heating | 45 | Expired |
| US5690339A | Collapsible sports goal apparatus | Human Necessities | 43 | Expired |
| US6780081B2 | Backless, strapless bra | Human Necessities | 36 | Expired |
| US6913541B2 | Golf putting training apparatus | Human Necessities | 31 | Expired |
| US6758720B2 | Attachable breast form enhancement system | Human Necessities | 30 | Expired |
| US5423731A | Exercise device with two seats | Human Necessities | 28 | Expired |
| USD393297S | Foldable treadmill | General | 25 | Expired |
| USD412540S | Toy drum | General | 25 | Expired |
| US5595555A | Walking exercise apparatus | Human Necessities | 25 | Expired |
| US6857932B2 | Breast form encased with fabric laminated thermoplastic film | Human Necessities | 23 | Expired |
| US5547443A | Rocking exercise device with two seats | Human Necessities | 23 | Expired |
| US7604647B2 | Ophthalmic cannula insertion tool and method | Human Necessities | 19 | Expired |
| US5665032A | Manual treadmill exerciser with air blowing retardant assembly | Human Necessities | 17 | Expired |
| US5366246A | Vehicle fuel tank mounting and protective cage | Performing Operations; Transporting | 17 | Expired |
| USD300154S | Combined toy guitar and microphone | General | 16 | Expired |
| US6916224B2 | Backless, strapless bra | Human Necessities | 16 | Expired |
| US5603549A | Nestable multipiece truck cab roof fairing assembly | Performing Operations; Transporting | 16 | Expired |
| US7089601B2 | Buttock form enhancement device | Human Necessities | 15 | Expired |
| US6852001B2 | Attachable breast form enhancement system | Human Necessities | 15 | Expired |
| US7052359B2 | Backless, strapless bra | Human Necessities | 14 | Expired |
| US8221189B2 | Attachable breast form enhancement system | Human Necessities | 14 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.