Gregory Holderfield
46Patents
19h-index
33Co-inventors
77Inventor score
Filing activity: Mar 3, 1995 → May 11, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5558501A | Portable ceiling fan | Mechanical Engineering; Lighting; Heating | 180 | Expired |
| US5518370A | Portable electric fan with swivel mount | Mechanical Engineering; Lighting; Heating | 103 | Expired |
| US5988542A | Document shredding devices | Performing Operations; Transporting | 72 | Expired |
| USD417442S | Transit vehicle card reader | General | 39 | Expired |
| USD409577S | Remote control transmitter | General | 33 | Expired |
| USD410246S | Paper shredder | General | 33 | Expired |
| USD425225S | Lighting unit | General | 28 | Expired |
| USD435834S | Remote control for electric blanket | General | 28 | Expired |
| USD583859S1 | Shredder | General | 27 | Expired |
| USD451748S | Refrigerated juice dispensing machine | General | 27 | Expired |
| USD602074S1 | Shredder | General | 26 | Expired |
| USD402369S | Housing for a device for measuring the concentration of an analyte in a sample of blood | General | 26 | Expired |
| USD591335S1 | Shredder | General | 25 | Expired |
| USD483214S1 | Coffeemaker | General | 23 | Expired |
| USD598048S1 | Shredder | General | 23 | Expired |
| USD602073S1 | Shredder | General | 22 | Expired |
| USD488957S1 | Blender jar | General | 20 | Expired |
| USD421648S | Humidifier | General | 19 | Expired |
| USD454465S1 | Beverage dispenser | General | 19 | Expired |
| USD399960S | Housing for a device for measuring the concentration of an analyte in a sample of blood | General | 19 | Expired |
| USD474640S1 | Two-slice toaster | General | 18 | Expired |
| USD382635S | Humidifier | General | 17 | Expired |
| USD604763S1 | Shredder | General | 17 | Expired |
| USD478467S1 | Hand mixer | General | 16 | Expired |
| USD475884S1 | 4-slice toaster | General | 16 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.