Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5042689 | Bottled water cooler having vent on demand delivery system | Ronald J. Mrugala, Doyle Raymer, Dipak J. Negandhi | 1991-08-27 |
| 4903935 | Bottled water cooler with improved valve construction | Ronald J. Mrugala, Doyle Raymer, Dipak J. Negandhi | 1990-02-27 |
| 4881380 | Plumbing module for bottled water cooler | Ronald J. Mrugala, Doyle Raymer, Dipak J. Negandhi | 1989-11-21 |
| 4783002 | Drinking fountain | Doyle Raymer, Dipak J. Negandhi, Dennis J. Heyden | 1988-11-08 |