Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6553956 | Composite lightweight valve for internal combustion engines | Pavel Hora, Karl-Heinz Thiemann | 2003-04-29 |
| 6523343 | Air gap insulated exhaust manifold assembly for an internal combustion engine and a method of making same | Gerd Durr, Johann Kramer, Gerd Tiefenbacher | 2003-02-25 |