Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9468975 | Treatment of chemical feedstocks | Willem Liebenberg Retief, Johan Louis Havenga, Wilhelmina Du Plessis, Johannes Petrus Le Roux | 2016-10-18 |
| 9416431 | Treatment of minerals | Willem Liebenberg Retief, Wilhelmina Du Plessis, Philippus Lodewyk Crouse, Johannes Petrus Le Roux | 2016-08-16 |
| 8778291 | Treatment of zirconia-based material with ammonium bi-fluoride | Willem Liebenberg Retief, Wilhelmina Du Plessis, Philippus Lodewyk Crouse | 2014-07-15 |
| 8512441 | Recovery of a gaseous component from a mixture of gaseous compounds | Izak Jacobus Van Der Walt, Alfred Teo Grunenberg, Odolphus Simon Leo Bruinsma, Marco Le Roux, Henning Manfred Krieg +1 more | 2013-08-20 |
| 8212091 | Depolymerization of fluoropolymers | Izak Jacobus Van Der Walt, Alfred Teo Grunenberg | 2012-07-03 |
| 5958355 | Process for reacting a zirconia based material | — | 1999-09-28 |