CAL R & D, Inc.
4Patents
0Active
4Granted
27Portfolio score
Filing activity: Jan 29, 1988 → Aug 26, 1988
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4923428A | Interactive talking toy | Human Necessities | 159 | Expired |
| US4900289A | Mechanism for animating a doll's facial features | Human Necessities | 36 | Expired |
| US4950200A | Whispering doll | Human Necessities | 15 | Expired |
| US4836465A | Magnetic tape transport system | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.