Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6216384 | Insect bait station | Stephen M. Costa, Ezra A. Theys | 2001-04-17 |
| D390305 | Insect bait station | Frank Knafelc, Ronald E. Heiskell, Ezra A. Theys, David E. Kolarich | 1998-02-03 |
| D377961 | Insect bait station | Frank Knafelc, Ronald E. Heiskell, Ezra A. Theys, David E. Kolarich | 1997-02-11 |
| D374703 | Insect bait station | Frank Knafelc, Ronald E. Heiskell, Ezra A. Theys, David E. Kolarich | 1996-10-15 |
| 5398869 | Display-ready shipping carton | Ronald E. Heiskell, Ezra E. Theys, Michael J. Silveira, Frank Knafelc, Larry F. Morice | 1995-03-21 |
| 5282567 | Transport and display carton | — | 1994-02-01 |