Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5448830 | Process for the production of a heat exchanger and apparatus for carrying out the method | Werner Borchert | 1995-09-12 |
| 5292056 | method of welding heat exchangers | Werner Borchert | 1994-03-08 |