| 2025/0050,354 | METHOD FOR FROTH-CONTROLLED FLOTATION OF ARGILLACEOUS LEPIDOLITE ORE | Jul 24, 24 | Feb 13, 25 | Not available |
| 2025/0043,389 | RECOVERING GOLD | Dec 16, 22 | Feb 06, 25 | Not available |
| 2024/0359,190 | Methods for Pollucite Flotation, Plagioclase Flotation, and Quartz Purification | Apr 09, 24 | Oct 31, 24 | Not available |
| 2024/0198,359 | IMPROVED FLOTATION AND SOLID-LIQUID SEPARATION OF TAILINGS | Apr 29, 22 | Jun 20, 24 | EXTRAKT PROCESS SOLUTIONS, LLC |
| 2024/0066,525 | RECOVERING VALUABLE MATERIAL | Mar 07, 22 | Feb 29, 24 | Not available |
| 2023/0365,867 | APPARATUS AND METHOD FOR REMOVING DEBRIS AND ENTRAPPED AIR FROM BITUMEN | Oct 06, 21 | Nov 16, 23 | HOCS Projects Inc. |
| 2022/0410,175 | RELEASE AGENT FOR IMPROVED REMOVAL OF VALUABLE MATERIAL FROM THE SURFACE OF AN ENGINEERED COLLECTION MEDIA | Dec 11, 20 | Dec 29, 22 | Not available |
| 2022/0001,395 | FLOTATION PROCESS FOR TREATING COAL SLIME BY USING SALT-CONTAINING WASTE WATER | Sep 20, 19 | Jan 06, 22 | Not available |
| 2021/0086,199 | USE OF NON OXIDANT BIOCIDE FOR THE SELECTIVE RECOVERY OF VALUABLE METALS IN A FROTH FLOTATION PROCESS | Jun 15, 18 | Mar 25, 21 | Not available |
| 2020/0061,636 | FLOTATION ARRANGEMENT | Aug 09, 19 | Feb 27, 20 | Not available |
| 2020/0023,380 | A FLOTATION ARRANGEMENT, ITS USE, A PLANT AND A METHOD | Feb 15, 17 | Jan 23, 20 | Not available |
| 2019/0329,268 | METHODS AND SYSTEMS FOR POLISHING AND RECOVERING ALUMINUM FROM A WASTE MATERIAL | Nov 29, 17 | Oct 31, 19 | Not available |
| 2018/0111,131 | REDUCING THE NEED FOR TAILINGS STORAGE DAMS IN THE IRON ORE INDUSTRY | Dec 15, 17 | Apr 26, 18 | Not available |
| 2017/0326,559 | REDUCING THE NEED FOR TAILINGS STORAGE DAMS IN MINERAL FLOTATION | Oct 21, 16 | Nov 16, 17 | ANGLO AMERICAN SERVICES (UK) LTD. |
| 2017/0312,759 | APPARATUS FOR SIMULTANEOUS GRINDING AND FROTH FLOTATION | Nov 24, 15 | Nov 02, 17 | OMYA INTERNATIONAL AG |
| 2016/0199,854 | SEPARATION OF COPPER MINERALS FROM PYRITE USING AIR-METABISULFITE TREATMENT | Mar 22, 16 | Jul 14, 16 | BARRICK GOLD CORPORATION |
| 2016/0051,993 | FROTH FLOTATION SEPARATION AND ANALYSIS | May 09, 14 | Feb 25, 16 | HERAEUS QUARTZ UK LIMITED |
| 2015/0321,202 | METHOD AND APPARATUS FOR FLOTATION IN A FLUIDIZED BED | Jul 21, 15 | Nov 12, 15 | Not available |
| 2015/0108,044 | Flotation Separation Device and Method | Dec 31, 14 | Apr 23, 15 | Not available |
| 2015/0102,141 | METHOD FOR REDUCING THE LOSSES OF VALUABLE SUBSTANCES IN MINERAL PROCESSING | Apr 19, 13 | Apr 16, 15 | K+S AKTIENGESELLSCHAFT |