Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6226482 | Multi-roller monocomponent toner applicator | Dan E. Kanfoush, Alan R. Murzynowski, Leo Swanson | 2001-05-01 |
| 6160565 | Print cartridge RF return current control | Dennis C. Pollutro | 2000-12-12 |
| 6119943 | Multi-layer bar code arrangement using wavelength separation | — | 2000-09-19 |
| 6002415 | Field effect imaging apparatus using non-conductive non-magnetic toner | — | 1999-12-14 |
| 5933177 | Erase unit for ion deposition web-fed print engine | Dennis C. Pollutro, Theodore F. Cyman, Jr., Kevin J. Hook | 1999-08-03 |
| 5883656 | Field effect toning method/apparatus | — | 1999-03-16 |
| 5873015 | Like polarity biasing to control toner dusting | — | 1999-02-16 |
| 5866286 | Color selection by mixing primary toners | John E. P. Pickett, Mark A. Matheis, Leo Swanson | 1999-02-02 |
| 5862440 | Toner delivery device | Mark A. Muranyi, Kevin J. Hook | 1999-01-19 |
| 5799227 | Non-magnetic toner dynamic recycling | Mark A. Matheis, Daniel E. Kanfoush | 1998-08-25 |
| 5751307 | Print cartridge cleaning apparatus and method using water and air | Paul J. Paroff, James M. Schweitzer, Mark A. Matheis | 1998-05-12 |
| 5745144 | Field effect toning method | — | 1998-04-28 |
| 5656409 | Method of applying non-magnetic toner | Daniel E. Kanfoush, Mark A. Matheis, John E. P. Pickett, Robert I. Thomson | 1997-08-12 |
| 5633108 | Monocomponent resistive toner for field charging | John E. P. Pickett, Leo Swanson, Kevin J. Hook | 1997-05-27 |
| 5630200 | Multi-roller electrostatic toning system application to tri-level imaging process | — | 1997-05-13 |
| 5570170 | Electrostatic printing apparatus with a hopper and applicator roller with method of applying toner to and declumping the applicator roller | Mark J. Muranyi, Dennis C. Pollutro, T. F. Cyman, Kevin J. Hook, Mark A. Matheis | 1996-10-29 |
| 5532100 | Multi-roller electrostatic toning | Daniel E. Kanfoush, Mark A. Matheis, John E. P. Pickett, Robert I. Thomson | 1996-07-02 |
| 5499085 | Trailing edge dust control | Kevin J. Hook, David Hargreaves, Mark Ruchalski, Michael D. Akins | 1996-03-12 |
| 5397623 | Magnetic toner offsetting spot | Dominick L. Monico | 1995-03-14 |
| 5368334 | Variable data clear mark imaging | John E. P. Pickett, Leo Swanson, Mark A. Matheis, Marc Cousoulis | 1994-11-29 |
| 5323217 | Ion deposition printer cleaning apparatus and related method | John E. P. Pickett, Mark A. Matheis, James R. Halliday, Michael D. Akins | 1994-06-21 |
| 5243365 | Positively purged print cartridge | David J. Holler, deceased | 1993-09-07 |
| 5132713 | Ion deposition web-fed print engine | David J. Holler, deceased, Mark A. Matheis, Paul J. Paroff, James R. Halliday | 1992-07-21 |
| 4439012 | Dual-secondary mirror cassegrain optical system | — | 1984-03-27 |