Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6116100 | Method for automatically assembling a sample cup having a weighted ring on top of a planar sample therewithin and delivering it to a test apparatus | — | 2000-09-12 |
| 6035148 | Shuttering system for a sensitometer | — | 2000-03-07 |
| 5800777 | Method and apparatus for automatic sample preparation and handling | — | 1998-09-01 |
| 5782515 | Rotatable arm mechanism for assembling and disassembling samples | — | 1998-07-21 |
| 5752695 | Film sample positioning apparatus | L. Charles Burgwardt | 1998-05-19 |
| 5400116 | Apparatus and method for producing gradated exposures on radiation sensitive material | Gary A. Granath, Mark R. O'Donnell, James E. Bird | 1995-03-21 |
| 5075716 | Apparatus and method for precisely exposing radiation sensitive materials | Eugene R. Clemons, Thomas W. McKeehan, Brian A. Reed | 1991-12-24 |