Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308978 | Method of preparing a sample for analysis | John S. Cottrell | 1994-05-03 |
| 5281538 | Method of preparing a sample for analysis by laser desorption mass spectrometry | John S. Cottrell | 1994-01-25 |