Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4372939 | Process of producing chlorine dioxide | Siegfried Bielz, Karl Lohrberg | 1983-02-08 |
| 4294815 | Process of producing chlorine dioxide and, if desired, chlorine | Karl Lohrberg, Siegfried Bielz | 1981-10-13 |