Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694770 | Method and assembly for operating an electrical heater of a catalytic converter system | Rolf Brück | 1997-12-09 |
| 5664327 | Method for producing a hollow composite members | — | 1997-09-09 |
| 5643484 | Electrically heatable honeycomb body with resistance increased by slits | Rolf Brück | 1997-07-01 |
| 5618462 | Electrically insulating, gas-tight leadthrough for at least one electrical conductor through a metallic sheath | — | 1997-04-08 |
| 5608968 | Method of making a metal honeycomb body of intertwined sheet-metal layers | Wolfgang Maus, Rolf Br uck, Bohumil Humpolik | 1997-03-11 |
| 5610844 | Method of monitoring the operation of a catalytic converter | Wolfgang Maus, Rolf Brück | 1997-03-11 |