Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9562542 | Efficient drying fan | — | 2017-02-07 |
| 9470425 | Dehumidifier | David M. Cink, Vincent Yu, Timothy S. O'Brien | 2016-10-18 |
| 9052132 | Dehumidifier | David M. Cink, Vincent Yu, Timothy S. O'Brien | 2015-06-09 |
| 8579582 | Efficient drying fan | — | 2013-11-12 |
| 8069681 | Dehumidifier, cross-flow heat exchanger and method of making a cross-flow heat exchanger | David M. Cink, Vincent Yu, Timothy S. O'Brien | 2011-12-06 |
| D570988 | Heat exchanger | David M. Cink, Vincent Yu | 2008-06-10 |
| 5031411 | Efficient dehumidification system | Joel C. Zabel, Phillip R. Steinmetz | 1991-07-16 |
| 4665712 | Heat pump water heater system | Ralph K. Rustebakke | 1987-05-19 |