Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9707678 | Combined portable step stool and workpiece support device | Caspar Bernard Lampe | 2017-07-18 |
| 9488003 | Portable ladder with a stand off device | Caspar Bernard Lampe | 2016-11-08 |
| 8869937 | Combined portable step stool and workpiece support device | Caspar Bernard Lampe | 2014-10-28 |
| 8844675 | Portable ladder with a stand off device | Caspar Bernard Lampe | 2014-09-30 |