Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8561451 | Tubes and method and apparatus for producing tubes | Frank Opferkuch, Daniel Borst, Martin Ploppa, Werner Zobel, Jens Nies +2 more | 2013-10-22 |
| 8434227 | Method of forming heat exchanger tubes | — | 2013-05-07 |
| 8281489 | Flat tube, flat tube heat exchanger, and method of manufacturing same | Werner Zobel, Jens Nies, Roland Straehle, Bernhard Stephan | 2012-10-09 |
| 8191258 | Flat tube, flat tube heat exchanger, and method of manufacturing same | Werner Zobel, Jens Nies, Roland Straehle, Bernhard Stephan | 2012-06-05 |
| 7921559 | Flat tube, flat tube heat exchanger, and method of manufacturing same | Werner Zobel, Jens Nies, Roland Straehle, Rainer Kasinger, Bernhard Stephan | 2011-04-12 |
| 4938813 | Solid rocket fuels | Klaus Menke, Hiltmar Schubert | 1990-07-03 |