Individual holder
CARROLL WILLIAM M
US·3 granted patents·41 citations·filing 1987–1989
Individually held — no corporate assignee on record.
Technology mixG11B3
Top patents by PatentIndex Score
3 records- 0182US4770367AMagnetic tape cassettesCARROLL WILLIAM M·Filed 1987·Granted Sep 13, 1988·25 cites·25 claims
- 0254US4773615AMagnetic tape cassettesCARROLL WILLIAM M·Filed 1987·Granted Sep 27, 1988·9 cites·3 claims
- 0349US5046683ACassette reel spring tip configurationCARROLL WILLIAM M·Filed 1989·Granted Sep 10, 1991·7 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →