Helbig; Colleen A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Helbig; Colleen A..The latest application filed is for "photoreceptor charge transport layer composition".
- Helbig; Colleen A. - Penfield NY
| Patent | Date |
|---|---|
| Photoreceptor charge transport layer composition Grant 7,267,917 - Tong , et al. September 11, 2 | 2007-09-11 |
| Photoreceptor charge transport layer composition Grant 7,192,678 - Tong , et al. March 20, 2 | 2007-03-20 |
| Imaging member Grant 7,052,813 - Tong , et al. May 30, 2 | 2006-05-30 |
| Imaging member Grant 7,022,445 - Tong , et al. April 4, 2 | 2006-04-04 |
| Dual charge transport layer and photoconductive imaging member including the same Grant 7,018,756 - Pai , et al. March 28, 2 | 2006-03-28 |
| Photoreceptor charge transport layer composition App 20060063080 - Tong; Yuhua ; et al. | 2006-03-23 |
| Extrusion coating system App 20060024445 - Willnow; Alfred H. ; et al. | 2006-02-02 |
| Photoreceptor charge transport layer composition App 20060014089 - Tong; Yuhua ; et al. | 2006-01-19 |
| Imaging member App 20050271958 - Tong, Yuhua ; et al. | 2005-12-08 |
| Imaging member Grant 6,933,089 - Horgan , et al. August 23, 2 | 2005-08-23 |
| Dual charge transport layer and photoconductive imaging member including the same App 20050053854 - Pai, Damodar M. ; et al. | 2005-03-10 |
| Imaging member Grant 6,780,554 - Tong , et al. August 24, 2 | 2004-08-24 |
| Imaging member App 20040115547 - Tong, Yuhua ; et al. | 2004-06-17 |
| Imaging members App 20040115545 - Horgan, Anthony M. ; et al. | 2004-06-17 |
| Imaging member App 20040115544 - Fu, Min-Hong ; et al. | 2004-06-17 |
| Imaging member App 20040115546 - Tong, Yuhua ; et al. | 2004-06-17 |
| Electrophotographic imaging members Grant 6,645,686 - Fu , et al. November 11, 2 | 2003-11-11 |
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