Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444130 | Process for rendering waste from electric furnace production of phosphorus non-hazardous | James L. Manganaro, Henry A. Pfeffer, Jay R. Brummer, Bert D. McMunn, William M. Copa | 2002-09-03 |
| 6372402 | Developer compositions and processes | David H. Pan | 2002-04-16 |
| 6348292 | Developer compositions and processes | David H. Pan, Weizhong Zhao, Thomas W. Smith | 2002-02-19 |
| 6346357 | Developer compositions and processes | David H. Pan, Weizhong Zhao | 2002-02-12 |
| 6335136 | Developer compositions and processes | David H. Pan | 2002-01-01 |
| 6218066 | Developer compositions and processes | Weizhong Zhao, David H. Pan, John W. Spiewak | 2001-04-17 |
| 6212347 | Imaging apparatuses and processes thereof containing a marking material with a charge acceptance additive of an aluminum complex | Weizhong Zhao, David H. Pan, John W. Spiewak | 2001-04-03 |
| 6187499 | Imaging apparatus | Weizhong Zhao, David H. Pan, John W. Spiewak | 2001-02-13 |
| 6187498 | Liquid developers and processes thereof | George A. Gibson, David H. Pan, John W. Spiewak | 2001-02-13 |
| 6180308 | Developer compositions and processes | David H. Pan, Weizhong Zhao, John W. Spiewak | 2001-01-30 |
| 6060204 | Liquid developers and processes thereof | George A. Gibson, David H. Pan, John W. Spiewak | 2000-05-09 |
| 5866292 | Liquid developer compositions with copolymers | Scott D. Chamberlain, David H. Pan, John W. Spiewak, George A. Gibson, Frank J. Bonsignore | 1999-02-02 |
| 5783349 | Liquid developer compositions | John W. Spiewak, Mary A. Machonkin, David H. Pan, Scott D. Chamberlain | 1998-07-21 |
| 5723244 | Charging neutralization processes | Scott D. Chamberlain, David H. Pan | 1998-03-03 |
| 5714297 | Liquid developer compositions with rhodamine | Scott D. Chamberlain, John W. Spiewak, David H. Pan, George A. Gibson, Roger N. Ciccarelli | 1998-02-03 |
| 5688624 | Liquid developer compositions with copolymers | Scott D. Chamberlain, David H. Pan, John W. Spiewak, George A. Gibson, Frank J. Bonsignore | 1997-11-18 |