Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5575249 | Plastic intake manifold assembly with hollow resonance chamber structure for internal combustion engines | Herbert Pietrowski | 1996-11-19 |
| 4891257 | Carrier matrix, particularly for a catalytic reactor for the exhaust emission control in the case of internal-combustion engines | Bohumil Humpolik | 1990-01-02 |