Assignee
AYERS DAVID B
US·4 granted patents·43 citations·filing 1986–1991
Technology mixA63F3
Top patents by PatentIndex Score
4 records- 0161US4708345AManipulative amusement deviceAYERS DAVID B·Filed 1986·Granted Nov 24, 1987·19 cites·20 claims
- 0259US4881738AManipulative amusement deviceAYERS DAVID B·Filed 1989·Granted Nov 21, 1989·18 cites·11 claims
- 0334USD315751SPuzzleAYERS DAVID B·Filed 1989·Granted Mar 26, 1991·1 cites·1 claims
- 0432US5178576AApparatus and method for manupulating a spring toyAYERS DAVID B·Filed 1991·Granted Jan 12, 1993·5 cites·14 claims
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