David G. Waples
10Patents
7h-index
11Co-inventors
63Inventor score
Filing activity: Nov 2, 1984 → Aug 26, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4750223A | Portable crib | Human Necessities | 45 | Expired |
| US4842331A | Highchair with adjustable removable tray for one-hand operation | Human Necessities | 34 | Expired |
| US4768243A | Latch for a drop side crib | Emerging Cross-Sectional Technologies | 22 | Expired |
| US8366135B2 | Children's ride-on vehicles having detection systems | Performing Operations; Transporting | 22 | Active |
| US7207588B2 | Children's ride-on vehicle assemblies having trailing vehicle detection systems | Performing Operations; Transporting | 17 | Expired |
| US7621552B2 | Children's ride-on vehicle assemblies having trailing vehicle detection systems | Performing Operations; Transporting | 13 | Active |
| US6964634B2 | Jumping device with convertible stabilizing base | Human Necessities | 9 | Expired |
| US4580833A | Safety lock for a folding high chair | Human Necessities | 7 | Expired |
| USD294894S | Portable crib | General | 3 | Expired |
| US7857454B2 | Image Projecting device | Physics | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.