Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Infant development ring toy

Infant development ring toy

US Patent 4249333 · Granted Feb 10, 1981

Estimated economic value: $4,694,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Burn-in pads for tab interconnects1991
Method for identifying hydrocarbon-zones in subsurface formations1990
Acoustic logging method for determining the dip angle and dip direction of a sub1990
Spiral cylinder toy1989
Mobile element1989
Support for toy mobile1989
Crib attachment toy1988
Spinner paddle toy1988
Baby's toy and things to arouse attention therefor1988
Baby's marble runway toy1988
Rattle bird toy1987
Infant teething toy1987