Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5218203 | Ion source and sample introduction method and apparatus using two stage ionization for producing sample gas ions | Harald Berresheim | 1993-06-08 |
| 5175431 | High pressure selected ion chemical ionization interface for connecting a sample source to an analysis device | Harald Berresheim | 1992-12-29 |