Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7073403 | Method and apparatus for the collection of samples | John C. Berends, Jr. | 2006-07-11 |
| 6819253 | Method and apparatus for the collection of near real time confirmation samples | John C. Berends, Jr. | 2004-11-16 |
| 6321609 | Magazine for use with a gas sampling system | R. William Mengel, John C. Berends, Jr., Robert S. Marshall, Christopher Dale Sloop | 2001-11-27 |
| 6272937 | Gas sampling system | R. William Mengel, John C. Berends, Jr., Robert S. Marshall, Christopher Dale Sloop | 2001-08-14 |
| 6244117 | Means for trapping contaminants contained in a gas | R. William Mengel, John C. Berends, Jr., Robert S. Marshall, Christopher Dale Sloop | 2001-06-12 |
| 6167767 | Automated sequential gas sampling system | R. William Mengel, John C. Berends, Jr., Robert S. Marshall, Christopher Dale Sloop | 2001-01-02 |