Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5519497 | Control develop mass in a color system | Fred F. Hubble, III, James P. Martin, Ralph A. Shoemaker | 1996-05-21 |
| 5243292 | Electrostatic measuring tuning fork and means for limiting mechanical amplitude thereof | William J. Nowak | 1993-09-07 |
| 5166729 | Toner concentration sensing apparatus | Darrel R. Rathbun, John Buranicz | 1992-11-24 |
| 5083161 | Densitometer for measuring developability | Fred F. Hubble, III, James P. Martin, Theresa K. Mattioli, Ralph A. Shoemaker | 1992-01-21 |
| 5078497 | Densitometer for a liquid developer material | Fred F. Hubble, III, James P. Martin, Theresa K. Mattioli, Ralph A. Shoemaker | 1992-01-07 |
| 4831410 | Automatic exposure control system for flash exposure photocopiers | Jerry F. Adams, Fred F. Hubble, III, James P. Martin, Ralph A. Shoemaker, Alan J. Werner, Jr. +1 more | 1989-05-16 |