Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658800 | Method for extraction, using extraction cartridge and automated extraction processing system | John H. Burrows | 1997-08-19 |
| 5603160 | Method for making an extraction cartridge | John H. Burrows | 1997-02-18 |
| 5598933 | Method for extraction, extraction cartridge and automated extraction processing system | John H. Burrows | 1997-02-04 |