Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5875824 | Method and apparatus for high speed delivery of particulate material | Charles Gary Atwell, Marc D. Belcastro, Joseph F. Budjinski, II, Jorg Forster, Martin T. Garthaffner +1 more | 1999-03-02 |
| 4840170 | Self-rescuer apparatus | Klaus-Dieter Dahrendorf, Volker Huennebeck | 1989-06-20 |