Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8893709 | Kitchen ventilation hood apparatus | Joseph W. Dvorak, James William Ervin, Mark DeLorenzo | 2014-11-25 |
| 7654258 | Kitchen ventilation hood apparatus | Joseph W. Dvorak, James William Ervin, Mark DeLorenzo | 2010-02-02 |
| 5107097 | Forced air convection oven | Jeffrey S. MCMAHON | 1992-04-21 |
| 5042689 | Bottled water cooler having vent on demand delivery system | Ronald J. Mrugala, Doyle Raymer, Robert L. Latzko | 1991-08-27 |
| 4903935 | Bottled water cooler with improved valve construction | Ronald J. Mrugala, Doyle Raymer, Robert L. Latzko | 1990-02-27 |
| 4881380 | Plumbing module for bottled water cooler | Ronald J. Mrugala, Doyle Raymer, Robert L. Latzko | 1989-11-21 |
| 4783002 | Drinking fountain | Doyle Raymer, Dennis J. Heyden, Robert L. Latzko | 1988-11-08 |