Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7377773 | Method of reducing NOx emissions in rotary preheater mineral kilns | Paul S. Nolan, Robert F. Kohl, Kerry Seitz | 2008-05-27 |
| 6199845 | Spring support arrangement | Siegfried Rispeter | 2001-03-13 |
| 6186488 | Arrangement for blocking a spring in a spring strut | — | 2001-02-13 |