Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891654 | Ink jet array | Paul A. Hoisington, Robert R. Schaffer | 1990-01-02 |
| 4864328 | Dual mode ink jet printer | — | 1989-09-05 |
| 4835554 | Ink jet array | Paul A. Hoisington, Robert R. Schaffer | 1989-05-30 |
| 4825227 | Shear mode transducer for ink jet systems | Paul A. Hoisington | 1989-04-25 |
| 4775232 | Catadioptric projection lantern | Paul A. Hoisington | 1988-10-04 |
| 4584590 | Shear mode transducer for drop-on-demand liquid ejector | Allen T. Wright | 1986-04-22 |
| 4546360 | Electrothermic ink jet | Linda T. Creagh, Curt R. Raschke | 1985-10-08 |
| 4524364 | Circuitry for correcting dot placement for oscillating carriage ink jet printer | Lee L. Bain | 1985-06-18 |
| 4509058 | Ink jet printing using horizontal interlacing | — | 1985-04-02 |
| 4496960 | Ink jet ejector utilizing check valves to prevent air ingestion | — | 1985-01-29 |
| 4487662 | Electrodeposition method for check valve | — | 1984-12-11 |
| 4395720 | Configurational reduction of pulse ejector crosstalk | Joel Grover | 1983-07-26 |
| 4389652 | Bidirectional ink jet printing | — | 1983-06-21 |
| 4386358 | Ink jet printing using electrostatic deflection | — | 1983-05-31 |
| 4382263 | Method for ink jet printing where the print rate is increased by simultaneous multiline printing | Edward Forest | 1983-05-03 |
| 4379301 | Method for ink jet printing | — | 1983-04-05 |
| 4379300 | Ink jet printing | — | 1983-04-05 |
| 4349828 | Method and apparatus for oscillating an array of marking elements | Marcus M. Schnarr, Demetris F. Paraskevopoulos | 1982-09-14 |
| 4326205 | Coincidence fluid displacement and velocity expression of droplet | Marcus M. Schnarr | 1982-04-20 |
| 4322063 | Suspension for an oscillating bar | Allen T. Wright | 1982-03-30 |
| 4314282 | Multifunction graphic engine based on an oscillating scanner | Allen T. Wright, Lee L. Bain, Demetris E. Paraskevopoulos | 1982-02-02 |
| 4243995 | Encapsulated piezoelectric pressure pulse drop ejector apparatus | Allen T. Wright | 1981-01-06 |
| 4233610 | Hydrodynamically damped pressure pulse droplet ejector | Stig-Goran Larsson, S. Bertil Sultan | 1980-11-11 |
| 4201995 | Coincidence gate ink jet with increased operating pressure window | Ganesh L. Harpavat | 1980-05-06 |
| 4199769 | Coincidence gate ink jet with increased operating pressure window | — | 1980-04-22 |