Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D348512 | Ceiling fan motor housing | Herbert W. Markwardt | 1994-07-05 |
| D344129 | Combined electric ceiling fan and light | — | 1994-02-08 |
| D333867 | Combined electric ceiling fan and light | — | 1993-03-09 |
| D329087 | Electrically powered ceiling fan motor housing | — | 1992-09-01 |
| D328785 | Combined electric ceiling fan and light | — | 1992-08-18 |
| D328491 | Combined electric ceiling fan and light | — | 1992-08-04 |
| D322475 | Combined electric ceiling fan and light | Herbert W. Markwardt | 1991-12-17 |
| D321933 | Combined electric ceiling fan and light or the like | Herbert W. Markwardt | 1991-11-26 |
| 4720241 | Ceiling fan | — | 1988-01-19 |
| 4621977 | Ceiling fan | — | 1986-11-11 |
| D285720 | Ceiling fan | — | 1986-09-16 |