Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11873919 | Actuation ball valve | Guntas Singh Padda | 2024-01-16 |
| 11548776 | Dual dilution rate closed loop insert | — | 2023-01-10 |
| 10815117 | Dual dilution rate closed loop insert | — | 2020-10-27 |
| 6990993 | Vacuum drainage system | Volker W. Hafner, Thomas K. Zinn | 2006-01-31 |
| 6837258 | Vacuum operated sealed liquid accumulator | — | 2005-01-04 |
| 6684902 | Dual sensor liquid accumulator | Thomas K. Zinn, Ron T. Hahn | 2004-02-03 |
| 6311718 | Activator valve for providing a timed vacuum at an output port | V. Walter Hafner, Ron T. Hahn | 2001-11-06 |