Inventor · disambiguated record
Billy D. Purcell
Also filed as: PURCELL BILLY D
6 granted patents·53 citations·filing 1980–1990
82Inventor score
Technology areasB41J
Files withIBM6
Top patents by PatentIndex Score
6 records- 0167US4359288ASingle pass ribbon cartridge for impact printers having means to prevent incorrect insertionIBM·Filed 1980·Granted Nov 16, 1982·15 cites·11 claims
- 0261US4624592ARibbon cartridge retentionIBM·Filed 1984·Granted Nov 25, 1986·13 cites·11 claims
- 0358US4467976ARibbon cartridge comprising a stuffer box intermediate a supply reel and take-up reelIBM·Filed 1982·Granted Aug 28, 1984·12 cites·11 claims
- 0448USD332947SFront panel for a data processing systemIBM·Filed 1990·Granted Feb 2, 1993·6 cites·1 claims
- 0539US4636098ARibbon drive coupling and cartridge tilt arrangement for print line visibilityIBM·Filed 1984·Granted Jan 13, 1987·5 cites·11 claims
- 0631US4650356ARibbon cartridge motion control with a non-concentric driveIBM·Filed 1984·Granted Mar 17, 1987·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →