| RE47268 | Separation of biocomponents from DDGS | Nov 16, 16 | Mar 05, 19 | Not available |
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| 9051538 | Separation of biocomponents from DDGS | Oct 20, 14 | Jun 09, 15 | Not available |
| 7165680 | Selective flotation agent and flotation method | Dec 12, 02 | Jan 23, 07 | Not available |
| 6685027 | Method of concentrating phosphates from their ores | Aug 09, 01 | Feb 03, 04 | ARR-MAZ PRODUCTS, L.P. |
| 5456362 | Flutation process for the flutation of coarse fractions of potash ores | May 26, 94 | Oct 10, 95 | THE UNIVERSITY OF BRITISH COLUMBIA |
| 5402894 | Coal conditioning process | Oct 18, 93 | Apr 04, 95 | Chemical Dewatering Technology, Inc. |
| 5223148 | Process for increasing the bitumen content of oil sands froth | Nov 12, 91 | Jun 29, 93 | Oslo Alberta Limited |
| 5143599 | Process for refining kaolin | Jul 29, 91 | Sep 01, 92 | Kaolin Industries, Ltd. |
| 5118408 | Reducing the water and solids contents of bitumen froth moving through the launder of a spontaneous flotation vessel | Sep 06, 91 | Jun 02, 92 | Alberta Energy Company, Ltd., CANADIAN OCCIDENTAL PETROLEUM LTD., Esso Resources Canada Limited, Gulf Canada Resources Limited, HBOG-Oil Sands Limited Partnership, Her Majesty the Queen in right of the Province of Alberta, as represented by the Minister of Energy and Natural Resources, PanCanadian Petroleum Limited, Petro-Canada Inc., Her Majesty the Queen in the right of the Province of Alberta, |
| 5053140 | Process and apparatus for removing impurities from water used in food processing utilizing a mixture of ozone and air | Jul 26, 89 | Oct 01, 91 | AMERICAN WATER PURIFICATION, INC. |
| 4972956 | Method of removing carbonaceous particles, essentially free of pyritic sulphur, from an aqueous coal slurry | Mar 21, 89 | Nov 27, 90 | NATIONAL RESEARCH COUNCIL OF CANADA |
| 4964981 | Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation | Jan 25, 89 | Oct 23, 90 | Canterra Energy Ltd. |
| 4952307 | Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotation | Jan 25, 89 | Aug 28, 90 | Canterra Energy Ltd. |
| 4892648 | Process for beneficiation of coal and associated apparatus | Apr 20, 89 | Jan 09, 90 | Viking Systems International, Inc. |
| 4818377 | Defrothing method and apparatus | Oct 21, 87 | Apr 04, 89 | J. M. Voith GmbH |
| 4810371 | Process for fine coal cleaning | Dec 31, 87 | Mar 07, 89 | Consolidation Coal Company |
| 4648966 | Process for beneficiation of dolomitic phosphate ores | Dec 02, 85 | Mar 10, 87 | Tennessee Valley Authority |
| 4468320 | Integrated flotation filtration plant | Jun 23, 82 | Aug 28, 84 | Not available |