Danny E. Simpson
18Patents
8h-index
8Co-inventors
57Inventor score
Filing activity: Dec 2, 1977 → Aug 23, 1984
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD264359S | Rattle ball and handling toy | General | 33 | Expired |
| US4282679A | Infant's toy--rattle and peek-a-boo ball | Human Necessities | 18 | Expired |
| USD275022S | Puzzle toy | General | 17 | Expired |
| US4437668A | Puzzle post toy | Human Necessities | 14 | Expired |
| US4249333A | Infant development ring toy | Human Necessities | 13 | Expired |
| USD254860S | Combined grasping and handling toy rattle or similar article | General | 10 | Expired |
| USD266101S | Combined puzzle and construction toy | General | 8 | Expired |
| US4334382A | Infant development ring toy | Human Necessities | 8 | Expired |
| USD254560S | Crib toy or similar article | General | 7 | Expired |
| USD286556S | Toy rattle | General | 7 | Expired |
| USD265844S | Combined ball collection and receptacle | General | 6 | Expired |
| USD288849S | Infant teething toy | General | 6 | Expired |
| USD269533S | Rolling toy | General | 5 | Expired |
| USD263405S | Combined grasping and handling toy rattle or similar article | General | 5 | Expired |
| USD285460S | Return top rattle | General | 3 | Expired |
| USD255135S | Animate figure toy | General | 3 | Expired |
| USD258160S | Combined toy harbor, village and figure therefor | General | 1 | Expired |
| USD263323S | Combined puzzle and construction toy | General | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.