Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5211208 | Double-point welding machine | Gerhard Ritter, Klaus Ritter, Josef Grabuschnig | 1993-05-18 |
| 5134269 | Grid welding machine operating according to the electrical resistance welding principle | Gerhard Ritter, Klaus Ritter, Kurt Jursche | 1992-07-28 |
| 5020575 | Method and installation for feeding longitudinal elements to a welding machine for grates or gratings | Josef Grabuschnig, Klaus Ritter, Gerhard Ritter | 1991-06-04 |
| 4940874 | Convertible single or double spot welding machine | Gerhard Ritter, Klaus Ritter, Kurt Jursche | 1990-07-10 |
| 4853511 | Apparatus for the feeding of transverse wires to the welding line of a grid welding machine | Klaus Ritter, Gerhard Ritter | 1989-08-01 |
| 4848560 | Feeding apparatus for grid welding machine | Klaus Ritter, Gerhard Ritter, Josef Ritter | 1989-07-18 |
| 4748309 | Multi-spot resistance-welding machine | Josef Ritter, Gerhard Ritter, Klaus Ritter | 1988-05-31 |
| 4529858 | Multispot grid-welding machine | Gerhard Schmidt, Edgar Pollhammer, Gerhard Ritter, Klaus Ritter | 1985-07-16 |
| 4468550 | Multispotwelding machine for the production of grids or gratings | Hans Gott, Josef Ritter, Klaus Ritter, Gerhard Ritter | 1984-08-28 |
| 4360724 | Method and an apparatus for stepwise movement of a reinforcement grid | Klaus Ritter, Gerhard Ritter, Josef Ritter | 1982-11-23 |