Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10851994 | Electronic cigar lighter | Douglas Fisten, Daniel Z. Hoff | 2020-12-01 |
| D854742 | Tool for removing ash and ember from a cigar | Douglas Fisten, Daniel Z. Hoff | 2019-07-23 |