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Patent applications and USPTO patent grants for Whitfield; Richard G..The latest application filed is for "demand ink jet utilizing a phase change ink and method of operating".
Patent | Date |
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Demand ink jet utilizing a phase change ink and method of operating Grant 5,182,572 - Merritt , et al. January 26, 1 | 1993-01-26 |
Low corrosion impulse ink jet ink containing anti-oxidant Grant 4,793,264 - Lin , et al. December 27, 1 | 1988-12-27 |
Stearic acid-containing ink jet inks Grant 4,758,276 - Lin , et al. July 19, 1 | 1988-07-19 |
Natural wax-containing ink jet inks Grant 4,484,948 - Merritt , et al. * November 27, 1 | 1984-11-27 |
Ink jet ink formulation for reduced start-up problems Grant 4,400,215 - Cooke , et al. August 23, 1 | 1983-08-23 |
Natural wax-containing ink jet inks Grant 4,390,369 - Merritt , et al. June 28, 1 | 1983-06-28 |
Ink jet compositions and method Grant 4,361,843 - Cooke , et al. November 30, 1 | 1982-11-30 |
Ink jet printing formulations Grant 4,303,445 - Whitfield , et al. December 1, 1 | 1981-12-01 |
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