Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8251679 | Medical pump | Ralf Kuehner, Lothar Mitzlaff, Steffen Bauer | 2012-08-28 |
| 4827099 | Method and apparatus for continuous production of tubular bodies by means of laser longitudinal seam welding | Rolf Krebs, Otto Welsing, Friedhelm Retzlaff, Friedhelm Gunter, Manfred Gerber +1 more | 1989-05-02 |
| 4621176 | Method of and device for monitoring and/or controlling welding current in the high-frequency resistance pressure welding of pipes with longitudinal seams | Wilfried Kliesch, Friedrich-Otto Koch, Rolf Krebs, Peter Schorr, Heinz Strauch | 1986-11-04 |
| 4535215 | Method and device for controlling the welding process in the manufacturing of pipes with longitudinal seams | Wilfried Kliesch, Friedrich-Otto Koch, Rolf Krebs, Peter Schorr, Heinz Strauch | 1985-08-13 |
| 4531409 | Test system for defect determination in welding seams | Friedrich-Otto Koch | 1985-07-30 |
| 4298785 | Method and device for automatically tracking systems to the center of weld gaps, weld joints and weld reinforcements | Paul Krenzer, Franz-Josef Peters, Karl H. Schlusnus | 1981-11-03 |