Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5181427 | Thermally-releasable-sample collecting device | Andre H. Lawrence, Francis W. Lemon | 1993-01-26 |
| 4980294 | Method for testing the freshness of fish | Marek E. Krzymien | 1990-12-25 |
| 4890502 | Sorbent tube trace sample releasing apparatus | Andre H. Lawrence | 1990-01-02 |
| 4732046 | Method and apparatus for the introduction of a vaporizable sample into an analytical test apparatus | Andre H. Lawrence | 1988-03-22 |
| 4701306 | Concentrator for detection of amine vapors | Andre H. Lawrence | 1987-10-20 |
| 4698071 | Trace vapor concentrator | — | 1987-10-06 |