Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7938453 | Stabilized connector | Stephen Phillip Frank | 2011-05-10 |
| 6374195 | System for monitoring and tracking tool and tool performance | Wei Li, Karen Wortham | 2002-04-16 |
| 6116275 | Animal, human and industrial waste distribution system | — | 2000-09-12 |
| 5492146 | Pressure regulators | Paul R. Ostand, Timothy M. Garrison | 1996-02-20 |
| 4625752 | Flushing siphon | — | 1986-12-02 |
| 4590990 | Ventilation heat recovery system | — | 1986-05-27 |
| 4494730 | Plug valve with improved plastic sleeve | — | 1985-01-22 |
| 4478388 | Plug valve with removable lip insert means | — | 1984-10-23 |
| 4319601 | Trigger mechanism for siphon apparatus | — | 1982-03-16 |
| 4249559 | Reliable trap filling device for siphon apparatus | — | 1981-02-10 |
| 4181142 | Siphon apparatus | — | 1980-01-01 |