Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6968871 | Hazardous materials transfer system and method | Robert D. Husband, Larry D. Heller | 2005-11-29 |
| 6698461 | Hazardous materials transfer system and method | Robert D. Husband, Larry D. Heller | 2004-03-02 |
| 5667651 | Apparatus and associated method for reducing an undesired constituent of gas associated with wastewater and having sensor fault detection | — | 1997-09-16 |
| 5162077 | Device for in situ cleaning a fouled sensor membrane of deposits | Michael R. Cushman | 1992-11-10 |
| 5098547 | Dissolved oxygen sensor calibration, monitoring and reporting system | Michael R. Cushman | 1992-03-24 |
| 5046028 | System for calibrating, monitoring and reporting the status of a pH sensor | Michael R. Cushman | 1991-09-03 |
| 5016201 | System for calibrating, monitoring and reporting the status of a pH sensor | Michael R. Cushman | 1991-05-14 |
| 4961163 | System for monitoring and reporting the operability and calibration status of a pH sensor | Michael R. Cushman | 1990-10-02 |
| 4900422 | System for monitoring and reporting the operability and calibration status of a dissolved oxygen sensor | Michael R. Cushman | 1990-02-13 |
| 4822456 | Ion measuring apparatus and monitoring system | — | 1989-04-18 |