Issued Patents All Time
Showing 26–50 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5113915 | Grid welding machine | Gerhard Ritter, Gerhard Schmidt, Walter RESCH | 1992-05-19 |
| 5053597 | Method and apparatus for fabricating double-layer, welded grid bodies | Gerhard Ritter, Gerhard Schmidt, Anton Lassbacher | 1991-10-01 |
| 5020575 | Method and installation for feeding longitudinal elements to a welding machine for grates or gratings | Josef Grabuschnig, Rudolf Scherr, Gerhard Ritter | 1991-06-04 |
| 4940874 | Convertible single or double spot welding machine | Gerhard Ritter, Rudolf Scherr, Kurt Jursche | 1990-07-10 |
| 4919395 | Apparatus for heat treating a continuously moving metal wire | Gerhard Ritter, Gunther Stoisser | 1990-04-24 |
| 4913650 | Apparatus for the heat treatment of a continuously advanced metal wire | Gerhard Ritter | 1990-04-03 |
| 4860999 | Device for heat-treating, in particular annealing, a continuously advanced metal wire | Gerhard Ritter | 1989-08-29 |
| 4853511 | Apparatus for the feeding of transverse wires to the welding line of a grid welding machine | Gerhard Ritter, Rudolf Scherr | 1989-08-01 |
| 4848560 | Feeding apparatus for grid welding machine | Rudolf Scherr, Gerhard Ritter, Josef Ritter | 1989-07-18 |
| 4774824 | Apparatus for straightening self-hardening hot-rolled wires and for feeding them to a consumer | Gerhard Ritter, Peter Furndorfler | 1988-10-04 |
| 4748309 | Multi-spot resistance-welding machine | Josef Ritter, Gerhard Ritter, Rudolf Scherr | 1988-05-31 |
| 4681328 | Magnetic liquid shaft seal | Klaus Michaelsen, Gunther Mair | 1987-07-21 |
| 4673786 | Electrical resistance grid welding machine | Hans Gott, Josef Ritter, Gerhard Ritter | 1987-06-16 |
| 4597239 | Lining-frame of latticework construction for galleries, tunnels or the like | Klaus Matz, Gerhard Ritter, Edgar Pollhammer | 1986-07-01 |
| 4594830 | Bonding unit for reinforced concrete structural components | Klaus Matz, Gerhard Ritter | 1986-06-17 |
| 4580458 | Power transmission | Hans Gott, Josef Ritter, Gerhard Ritter | 1986-04-08 |
| 4571974 | Bending machine for wire or strip material | Edgar Pollhammer, Gerhard Ritter | 1986-02-25 |
| 4539787 | Reinforcement mat for reinforced concrete | Gerhard Ritter | 1985-09-10 |
| 4529858 | Multispot grid-welding machine | Rudolf Scherr, Gerhard Schmidt, Edgar Pollhammer, Gerhard Ritter | 1985-07-16 |
| 4526025 | Wire or strip bending mechanism | Gerhard Ritter, Gerhard Schmidt, Josef Ritter | 1985-07-02 |
| 4506818 | Device for the purpose of pushing sections of a wire through a solid body consisting of yielding material | Gerhard Ritter, Josef Ritter, Edgar Pollhammer | 1985-03-26 |
| 4503650 | Grid mat | Gerhard Schmidt, Gerhard Ritter | 1985-03-12 |
| 4500763 | Method and apparatus for the production of welded grid bodies | Gerhard Schmidt, Gerhard Ritter | 1985-02-19 |
| 4496820 | Multispot electrical resistance welding machine | Gerhard Ritter, Gerhard Jahrbacher | 1985-01-29 |
| 4468550 | Multispotwelding machine for the production of grids or gratings | Hans Gott, Rudolf Scherr, Josef Ritter, Gerhard Ritter | 1984-08-28 |