Individual holder
SPOFFORD BRYAN T
US·4 granted patents·433 citations·filing 1987–1991
Individually held — no corporate assignee on record.
Technology mixA61M4
Top patents by PatentIndex Score
4 records- 0170US5090408ATranstracheal catheter system and methodSPOFFORD BRYAN T·Filed 1987·Granted Feb 25, 1992·110 cites·35 claims
- 0268US5297546ATranstracheal catheter system and methodSPOFFORD BRYAN T·Filed 1990·Granted Mar 29, 1994·117 cites·16 claims
- 0365US5186168ATranstracheal catheter system and methodSPOFFORD BRYAN T·Filed 1990·Granted Feb 16, 1993·117 cites·36 claims
- 0458US5181509ATranstracheal catheter systemSPOFFORD BRYAN T·Filed 1991·Granted Jan 26, 1993·89 cites·21 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →