Issued Patents All Time
Showing 26–50 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8099024 | Systems and methods of producing gradient index optics by sequential printing of toners having different indices of refraction | — | 2012-01-17 |
| 8036583 | Preheating of substrates | — | 2011-10-11 |
| 7995956 | Developer system and method for providing variable flow rate of developer in an electrographic printer | — | 2011-08-09 |
| 7983604 | Magnetic scavenger for an electrostatographic printer | Kenneth J. Brown | 2011-07-19 |
| 7867678 | Toner for use in a chilled finish roller system | Andrew Ciaschi, Dinesh Tyagi, James H. Hurst, Arun Chowdry, Robert D. Bobo +1 more | 2011-01-11 |
| 7792467 | Dual channel apparatus for transporting powder in an electrostatographic printer | Joseph E. Guth | 2010-09-07 |
| 7706706 | Method and system for wide format toning | Michael W. Frauens, Joseph E. Guth, Laverne N. Lincoln, Jr. | 2010-04-27 |
| 7687213 | Custom color toner | Lloyd A. Lobo | 2010-03-30 |
| 7672623 | Electrographic distributed replenishment apparatus and method | James R. Flick, Joseph E. Guth | 2010-03-02 |
| 7561833 | Electrographic distributed replenishment apparatus and method | James R. Flick, Joseph E. Guth | 2009-07-14 |
| 7517076 | Phase-change ink jet printing with electrostatic transfer | Joseph E. Guth | 2009-04-14 |
| 7481884 | Powder coating apparatus and method of powder coating using an electromagnetic brush | Patrick M. Lambert, Joseph E. Guth, Laverne N. Lincoln, Jr., Michael W. Frauens, Kenneth P. Friedrich | 2009-01-27 |
| 7426361 | Developer mixing apparatus having four ribbon blenders | Paul Thompson, Joseph E. Guth | 2008-09-16 |
| 7258407 | Custom color printing apparatus and process | John R. Thompson | 2007-08-21 |
| 7146125 | Transfer roller with resistivity range | Joseph E. Guth, Paul Gloyer, George R. Walgrove, III | 2006-12-05 |
| 7033720 | Development systems for magnetic toners and toners having reduced magnetic loadings | Thomas A. Jadwin, John F. Crichton, Robert D. Fields | 2006-04-25 |
| 7031626 | Fixing roller system and method | John R. Thompson | 2006-04-18 |
| 6959162 | Electrographic image developing apparatus and process | Joseph E. Guth | 2005-10-25 |
| 6946230 | Electrostatic image developing processes and compositions | Joseph E. Guth, Ulrich Mutze | 2005-09-20 |
| 6885833 | Reduction of banding and mottle in electrophotographic systems | Kenneth P. Friedrich, Joseph E. Guth | 2005-04-26 |
| 6873805 | Toner replenishment based on writer current | Kenneth P. Friedrich, Joseph E. Guth | 2005-03-29 |
| 6775505 | Electrostatic image developing process with optimized setpoints | Joseph E. Guth, Matthias H. Regelsberger, Edward M. Eck | 2004-08-10 |
| 6766136 | Development systems for magnetic toners and toners having reduced magnetic loadings | Thomas A. Jadwin, John F. Crichton, Robert D. Fields | 2004-07-20 |
| 6728503 | Electrophotographic image developing process with optimized average developer bulk velocity | Joseph E. Guth, Matthias H. Regelsberger, Edward M. Eck, Ulrich Mutze | 2004-04-27 |
| 6723481 | Method for using hard magnetic carriers in an electrographic process | Patrick M. Lambert, William K. Goebel, Peter S. Alexandrovich | 2004-04-20 |