Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263561 | Fastener retaining device for assembly parts | David W. Sickels, Heinrich Luckhardt, deceased | 2001-07-24 |
| 5953813 | Fastener retaining device for assembly parts | David W. Sickels, Heinrich Luckhardt, deceased | 1999-09-21 |
| 5636426 | Holding device for fastening components | Heinrich Luckhardt, deceased | 1997-06-10 |
| 5566446 | Feed device for feeding of assembly parts | Heinrich Luckhardt, deceased | 1996-10-22 |