Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726821 | Apparatus for the treatment of substrates in a gas stream | — | 1988-02-23 |
| 4354862 | Filter for cleaning gases | — | 1982-10-19 |
| 4225327 | Filter for purification of gases | Detlef Nalaskowski | 1980-09-30 |