Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8547241 | Human waste bag overflow alarm | Timothy R. Collins, Brian D. Collins, Daniel John Smith | 2013-10-01 |
| 7193233 | Variable area flow rate meter using optical sensing of float position in the duct | Daniel J. Smith, Haresh C. Lakhan | 2007-03-20 |