Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5478542 | Process for minimizing pollutant concentrations in combustion gases | Jogindar M. Chawla, Joachim von Bergman, deceased | 1995-12-26 |
| 5399325 | Nitrogen oxides reduction using a urea hydrolysate | Thure von Harpe, M. Linda Lin, Daniel V. Diep, Joseph B. Wegrzyn | 1995-03-21 |
| 4315904 | Process for removing hydrogen sulphide and sulphur dioxide from claus tail gases | Rainer Lell, Ghazi R. Al-Muddarris | 1982-02-16 |
| 4302434 | Process for producing hydrogen and sulphur from hydrogen sulphide | Lars Hellmer, Gerhard Keunecke, Rainer Lell, Ghazi R. Al-Muddarris, Adolf Stauffer +1 more | 1981-11-24 |