Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880628 | Sustained release composition | Bernard F. Sansom, Alan D. Wilson, Havard J. Prosser, David M. Groffman | 1989-11-14 |
| 4868608 | Highlight color imaging apparatus | Delmer G. Parker, Howard M. Stark | 1989-09-19 |
| 4847655 | Highlight color imaging apparatus | Delmer G. Parker, Jerome E. May | 1989-07-11 |
| 4833504 | Single pass highlight color printer including a scavengeless developer housing | Delmer G. Parker | 1989-05-23 |