Jan Ryaa
60Patents
17h-index
12Co-inventors
81Inventor score
Filing activity: Jun 20, 1977 → Dec 21, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD353856S | Adult male doll | General | 62 | Expired |
| US4403733A | Track assembly for toy trains | Human Necessities | 54 | Expired |
| USD354318S | Element for a toy building set | General | 38 | Expired |
| USD327185S | Toy box | General | 32 | Expired |
| US4988324A | Toy figure with ball and socket joint | Emerging Cross-Sectional Technologies | 32 | Expired |
| USD353418S | Boy doll | General | 29 | Expired |
| US5782185A | Play and storage table | Human Necessities | 28 | Expired |
| USD327178S | Combined table and plural seating unit | General | 23 | Expired |
| USD354527S | Element for a toy building set | General | 23 | Expired |
| US5380232A | Toy with slide open-snap shut access to interior | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4430826A | Connecting device for adjustably and detachably interconnecting a plurality of elongated building components | Emerging Cross-Sectional Technologies | 21 | Expired |
| USD771199S1 | Building block for a toy building set | General | 20 | Active |
| USD290476S | Toy building element | General | 20 | Expired |
| USD290721S | Toy construction piece | General | 19 | Expired |
| USD608400S1 | Toy element for a building set | General | 18 | Expired |
| US5378191A | Toy device for picking up objects from a plane face | Human Necessities | 18 | Expired |
| USD354533S | Girl Doll | General | 17 | Expired |
| USD614707S1 | Element for a toy construction set | General | 16 | Expired |
| USD353417S | Adult female doll | General | 16 | Expired |
| USD350789S | Element for a toy building set | General | 15 | Expired |
| USD309927S | Toy building element | General | 14 | Expired |
| USD290482S | Movable toy figure | General | 14 | Expired |
| USD757862S1 | Building block for a toy building set | General | 13 | Active |
| US5494471A | Saddle for a toy horse | Human Necessities | 11 | Expired |
| USD358618S | Swing for a toy building set | General | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.