Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4501817 | Method for the analysis of materials by chromatography and mass spectrometry | Brian D. Andresen | 1985-02-26 |
| 4391778 | Method and apparatus for the analysis of materials by chromatography and mass spectrometry | Brian D. Andresen | 1983-07-05 |