David E. Mehaffey
29Patents
14h-index
20Co-inventors
81Inventor score
Filing activity: Sep 6, 1989 → Feb 3, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD683558S1 | Chair | General | 67 | Active |
| USD707461S1 | Chair | General | 62 | Active |
| USD440019S | Canister vacuum power head | General | 59 | Expired |
| USD743180S1 | Chair | General | 58 | Active |
| USD431335S | Vacuum cleaner handle | General | 58 | Expired |
| USD352797S | Wall mounted lighting fixture | General | 52 | Expired |
| USD348531S | Outdoor roadway lighting fixture | General | 46 | Expired |
| USD398098S | Upright vacuum cleaner | General | 45 | Expired |
| USD416114S | Upright vacuum cleaner | General | 29 | Expired |
| USD759414S1 | Chair | General | 27 | Active |
| USD444275S | Dirt container for bagless upright vacuum cleaner | General | 26 | Expired |
| USD403475S | Canister vacuum cleaner | General | 24 | Expired |
| US5341680A | Disabled driver assessment system | Human Necessities | 15 | Expired |
| USD796883S1 | Chair | General | 14 | Active |
| USD405568S | Canister vacuum wheel | General | 14 | Expired |
| USD348965S | Golf motorcaddie | General | 14 | Expired |
| USD442751S | Dust cover for an upright vacuum cleaner | General | 14 | Expired |
| USD357992S | Adjustable floodlight | General | 14 | Expired |
| US5105738A | Articulated hand stamp | Performing Operations; Transporting | 12 | Expired |
| USD348945S | Outdoor roadway lighting fixture | General | 12 | Expired |
| USD530533S1 | Chair | General | 8 | Expired |
| USD347080S | Outdoor roadway lighting fixture | General | 8 | Expired |
| USD326276S | Hand stamp | General | 7 | Expired |
| USD833193S1 | Chair | General | 5 | Active |
| US9801470B2 | Molded chair with integrated support and method of making same | Performing Operations; Transporting | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.