Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9206721 | Cyclonic air cleaner | Terrence M. Rotter, Robert J. Hensel | 2015-12-08 |
| 8808432 | Cyclonic air cleaner | Terrence M. Rotter, Robert J. Hensel | 2014-08-19 |
| D632770 | Cyclonic air cleaner housing | Terrence M. Rotter, Richard Koehl, Robert J. Hensel, Herbert V. Kohler, Jr. | 2011-02-15 |