Individual holder
ANGELL WILLIAM W
4 granted patents·2,443 citations·filing 1975–1979
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0197US4042979AValvuloplasty ring and prosthetic methodANGELL WILLIAM W·Filed 1976·Granted Aug 23, 1977·706 cites·13 claims
- 0297US4035849AHeart valve stent and process for preparing a stented heart valve prosthesisANGELL WILLIAM W·Filed 1976·Granted Jul 19, 1977·1.4k cites·17 claims
- 0394US3983581AHeart valve stentANGELL WILLIAM W·Filed 1975·Granted Oct 5, 1976·291 cites·24 claims
- 0481US4247292ANatural tissue heart valve fixation processANGELL WILLIAM W·Filed 1979·Granted Jan 27, 1981·78 cites·11 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →