Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4995723 | Method and apparatus for optically coupling an element analysis system and a laser to liquid metal in a melting vessel | Christoph Carlhoff, Claus-Jurgen Lorenzen | 1991-02-26 |
| 4993834 | Spectrometer for the simultaneous measurement of intensity in various spectral regions | Christoph Carlhoff, Claus-Jurgen Lorenzen | 1991-02-19 |