Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12195276 | AS/RS lift having vertically-aligned dual carriages | Douglas K. Schack, Ralf Buerkle, Charles Christopher Lingamfelter | 2025-01-14 |
| 11873163 | AS/RS lift having vertically-aligned dual carriages | Douglas K. Schack, Ralf Buerkle, Charles Christopher Lingamfelter | 2024-01-16 |
| 11198560 | AS/RS lift having vertically-aligned dual carriages | Douglas K. Schack, Ralf Buerkle, Charles Christopher Lingamfelter | 2021-12-14 |
| 10611568 | AS/RS lift having vertically-aligned dual carriages | Douglas K. Schack, Ralf Buerkle, Charles Christopher Lingamfelter | 2020-04-07 |