Assignee
WALKER FRANK J
4 granted patents·109 citations·filing 1975–1991
Top patents by PatentIndex Score
4 records- 0196USD247562SCeiling speakerWALKER FRANK J·Filed 1975·Granted Mar 21, 1978·57 cites·1 claims
- 0266US5096323AProng type stacked paper fastenerWALKER FRANK J·Filed 1991·Granted Mar 17, 1992·24 cites·5 claims
- 0354US4123621AAcoustical speaker deviceWALKER FRANK J·Filed 1977·Granted Oct 31, 1978·18 cites·14 claims
- 0438US3975018ARacket constructionWALKER FRANK J·Filed 1975·Granted Aug 17, 1976·10 cites·15 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →