Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7555917 | Process for purification of anhydrous hydrogen chloride gas | Bill Brady, Berthold Keggenhoff, Friedhelm Steffens | 2009-07-07 |
| 6719957 | Process for purification of anhydrous hydrogen chloride gas | Bill Brady, Berthold Keggenhoff, Friedhelm Steffens | 2004-04-13 |
| 6359177 | Process for separating mixtures of materials having different boiling points | Bill Brady, Berthold Keggenhoff | 2002-03-19 |