Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12305392 | Drywall and method for constructing a drywall | Klaus Holfelder, Klaus Wandler | 2025-05-20 |
| 12123188 | Panel, system, and use for concealing sound absorbing surface and method of producing of the same | Klaudius Hengst, Klaus Holfelder | 2024-10-22 |
| 11952797 | Breakthrough resistant drywall structure | Klaus Holfelder, Klaus Wandler | 2024-04-09 |
| 11866929 | Panel coating system | Klaus Holfelder, Klaus Wandler, Klaudius Hengst | 2024-01-09 |