Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7688473 | Tinted edge enhancement using harmonic halftones for the boundary pixels | Connie F. Purdum, Robert P. Loce, Beilei Xu, David J. Lieberman, Jon S. McElvain +1 more | 2010-03-30 |
| 7639389 | Memory for diagnosing imaging component failure | Paul M. Butterfield, Connie F. Purdum, Carlos O. Alva | 2009-12-29 |
| 7110144 | System and method of performing halftone gamma correction in a printing environment | Shirley N. Cheng, Robert P. Loce, Martin S. Maltz, Connie F. Purdum | 2006-09-19 |
| 6456394 | Method for reducing halo print defects associated with color images | Kevin Sheridan | 2002-09-24 |
| 5867198 | Method for estimation of toner usage in digital xerographic copiers and printers | David Wyble | 1999-02-02 |
| 5751432 | Highlight gloss for xerographic engine | — | 1998-05-12 |
| 5600430 | Split recharge method and apparatus for color image formation | Jeffrey J. Folkins, Roger L. Bullock, Thomas J. Fleck, Kenneth W. Pietrowski, Charles H. Tabb +1 more | 1997-02-04 |
| 5579100 | Single positive recharge method and apparatus for color image formation | Zhao-Zhi Yu, Charles H. Tabb, John F. O'Brien, James R. Beachner, Meng H. Lean +1 more | 1996-11-26 |
| 5559579 | Closed-loop developability control in a xerographic copier or printer | Robert E. Grace | 1996-09-24 |
| 5491538 | Development apparatus having an adjustable width development nip | — | 1996-02-13 |