Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7791777 | Method and apparatus for providing a color-balanced multiple print engine | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, NEAL TOMPKINS | 2010-09-07 |
| 7554687 | Methods and apparatus for determining toner level in electro-photographic print engines | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2009-06-30 |
| 7532347 | Methods and apparatus for routing pages to printers in a multi-print engine as a function of print job parameters | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2009-05-12 |
| 7489422 | Methods and apparatus for real time calibration of a print system marking engine | — | 2009-02-10 |
| 7349124 | Methods and apparatus for real time calibration of a marking engine in a print system | — | 2008-03-25 |
| 7342686 | Method and apparatus for providing a color-balanced multiple print engine | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, NEAL TOMPKINS | 2008-03-11 |
| 7301665 | Method and apparatus for determining toner level in electrophotographic print engines | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2007-11-27 |
| 7301671 | Method for calibrating a color marking engine for halftone operation | — | 2007-11-27 |
| 7206082 | Method and apparatus for routing pages to printers in a multi-print engine as a function of print job parameters | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2007-04-17 |
| 7116444 | Method and apparatus for determining toner level in electrophotographic print engines | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2006-10-03 |
| 7046391 | Method and apparatus for providing a color-balanced multiple print engine | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2006-05-16 |
| 7027187 | Real time calibration of a marking engine in a print system | — | 2006-04-11 |
| 6977752 | Method and apparatus for determining toner level in electrophotographic print engines | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2005-12-20 |
| 6888644 | Method and apparatus for determining toner level in electrophotographic print engines | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2005-05-03 |
| 6850335 | Method and apparatus for distributing pages to individual print engines in a multiple print engine | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2005-02-01 |
| 6707563 | Multiple print engine with error handling capability | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2004-03-16 |
| 6636326 | Method for calibrating a color marking engine for halftone operation | — | 2003-10-21 |
| 6633396 | Page synchronization in a color print system | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2003-10-14 |
| 6606165 | Method and apparatus for routing pages to printers in a multi-print engine as a function of print job parameters | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 2003-08-12 |
| 6271937 | Color correction of dot linearities in multiple print engine system | — | 2001-08-07 |
| 6219155 | Color correction of contone images in a multiple print engine system | — | 2001-04-17 |
| 6035103 | Color correction for multiple print engine system with half tone and bi-level printing | — | 2000-03-07 |
| 5859711 | Multiple print engine with virtual job routing | Michael W. Barry, Jack N. Bartholmae, Francis A. Rowe, E. Neal Tompkins | 1999-01-12 |
| 5799232 | Friction drive for an electrophotographic print engine | E. Neal Tompkins, Keith J. Bradley | 1998-08-25 |
| 5134439 | Exposure compensation system for a dual mode electrophotographic print engine | — | 1992-07-28 |