Description
Class B03D : FLOTATION; DIFFERENTIAL SEDIMENTATION
Subclass 1/14: Flotation Flotation machines (devices for feeding measured quantities of reagents B01J 4/02 )
B03D 1/14
Sub-Class
Stats
- 263 US PATENTS IN FORCE
- 35 US APPLICATIONS PENDING
- 88 Total Patent Owners
- 815 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12251649 | Feedwell apparatus, trough, plant and use | Sep 30, 19 | Mar 18, 25 | Metso Outotec Finland Oy |
| 12251718 | Aerated hydrocyclone apparatus and method for cyclonic froth separation | Jan 13, 23 | Mar 18, 25 | Not available |
| 12241202 | Process of transforming waste material into useful material | Mar 11, 24 | Mar 04, 25 | Bouldin Corporation |
| 12240001 | Froth flotation unit | Jul 04, 17 | Mar 04, 25 | OUTOTEC (FINLAND) OY |
| 12220711 | Flotation separation of fine coal particles from ash-forming particles | Jun 23, 20 | Feb 11, 25 | OMNIS MINERAL TECHNOLOGIES, LLC |
| 12186761 | Spout nozzle for scum removal device and water conduit with that spout nozzle for scum removal device | Dec 08, 20 | Jan 07, 25 | Utsunomiya Kogyo Co., Ltd. |
| 12145159 | Flotation machine apparatus and method of using the same | Mar 22, 19 | Nov 19, 24 | FLSMIDTH A/S |
| 12128425 | Recovering valuable material from an ore | Sep 15, 21 | Oct 29, 24 | Newcrest Mining Limited |
| 12115539 | Wide-size-fraction flotation system and process | Sep 24, 19 | Oct 15, 24 | China University of Mining and Technology |
| 12098349 | Systems and methods for removing micro-particles from a metalworking fluid | Apr 29, 22 | Sep 24, 24 | Quaker Chemical Corporation |
| 12097512 | System and method for saturation of a multicomponent medium with active microbubbles | Jun 16, 20 | Sep 24, 24 | FineFlot Inc. |
| 12091632 | Systems and methods for removing micro-particles from a metalworking fluid | Oct 21, 22 | Sep 17, 24 | Quaker Chemical Corporation |
| 12083539 | Flotation line | Aug 01, 18 | Sep 10, 24 | Metso Outotec Finland Oy |
| 12070757 | Engulfed nano/micro bubbles for improved recovery of large particles in a flotation cell | Apr 19, 19 | Aug 27, 24 | International Business Machine Corporation |
| 12060552 | Method and apparatus for the purification of extra-chromosomal nucleic acids sequences | Jul 04, 19 | Aug 13, 24 | KANEKA EUROGENTEC S.A. |
| 12054452 | Method and system for preparing xanthate by slurry method | Aug 28, 20 | Aug 06, 24 | Central South University |
| 12043552 | Reactor for separation of sodium chloride and potassium chloride from polymineral sources and method thereof | Jan 14, 19 | Jul 23, 24 | LIMITED LIABILITY COMPANY “GSM CHEMICAL” |
| 12030062 | Methods for flotation recovery of value material from coarse-sized particles | Oct 11, 18 | Jul 09, 24 | CYTEC INDUSTRIES INC. |
| 12023687 | Froth flotation apparatus | Apr 12, 19 | Jul 02, 24 | MINTEK |
| 12011726 | Flotation line | Jul 20, 20 | Jun 18, 24 | METSO FINLAND OY |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0114,800 | REMOVABLY ATTACHABLE SKIMMING MECHANISM | Oct 06, 23 | Apr 10, 25 | DHI - DALBO HOLDINGS, INC. & SUBSIDIARIES |
| 2025/0018,404 | SLURRY FEEDING ARRANGEMENT | Jul 14, 23 | Jan 16, 25 | METSO FINLAND OY |
| 2025/0018,405 | GUIDING ARRANGEMENT, FLOTATION CELL AND FLOTATION METHOD | Jul 14, 23 | Jan 16, 25 | METSO FINLAND OY |
| 2024/0417,283 | WATER TREATMENT DEVICE BASED ON MICRO-NANO BUBBLE TECHNOLOGY | Dec 07, 23 | Dec 19, 24 | Chongqing Academy of Eco-environmental sciences; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences; |
| 2024/0375,122 | APPARATUS AND METHOD FOR REAGENTIZING AND AERATING FEED TO FLOTATION MACHINES | Jul 28, 22 | Nov 14, 24 | Not available |
| 2024/0375,123 | MEMBRANE SPARGERS FOR GRAVITY SEPARATORS AND FLOTATION MACHINES | May 27, 22 | Nov 14, 24 | Not available |
| 2024/0367,180 | INCREASING FLOTATION RECOVERY AND THROUGHPUT | Sep 16, 22 | Nov 07, 24 | Not available |
| 2024/0343,611 | METHODS FOR DYNAMICALLY VARYING CHEMICAL ADDITIVE FLOWRATE TO TREAT WASTEWATER IN REAL TIME AND SYSTEMS FOR PERFORMING THE SAME | Nov 27, 23 | Oct 17, 24 | Not available |
| 2024/0261,800 | ROTOR OF GAS DISPERSION ARRANGEMENT | May 27, 22 | Aug 08, 24 | METSO FINLAND OY |
| 2023/0398,555 | FLOTATION CELL VORTEX STABILIZER | Oct 12, 21 | Dec 14, 23 | Not available |
| 2023/0398,554 | MICROFLOTATION SYSTEM FOR TREATING A BODY OF WATER | Oct 27, 21 | Dec 14, 23 | Not available |
| 2023/0211,358 | REACTOR SPARGER ASSEMBLY | May 27, 21 | Jul 06, 23 | SOLUGEN, INC. |
| 2023/0014,341 | A SENSOR FOR MONITORING FLOTATION RECOVERY | Dec 17, 20 | Jan 19, 23 | Not available |
| 2022/0362,785 | SEPARATOR APPARATUS AND FEED ARRANGEMENT FOR INCREASED CAPACITY | Jun 29, 20 | Nov 17, 22 | Not available |
| 2022/0258,179 | FLOTATION CELL | Jul 29, 19 | Aug 18, 22 | Metso Outotec Finland Oy |
| 2022/0258,178 | FLOTATION CELL | Jul 29, 19 | Aug 18, 22 | Metso Outotec Finland Oy |
| 2022/0112,450 | METHOD FOR CONDITIONING AND PROCESSING WHOLE OR THIN STILLAGE TO AID IN THE SEPARATION AND RECOVERY OF PROTEIN AND OIL FRACTIONS | Oct 11, 21 | Apr 14, 22 | Not available |
| 2021/0323,002 | Flotation Cell | Aug 01, 18 | Oct 21, 21 | Metso Outotec Finland Oy |
| 2021/0308,695 | FLOTATION LINE | Aug 01, 18 | Oct 07, 21 | Not available |
| 2021/0237,100 | FLOTATION PERFORMANCE ENHANCEMENT | Apr 26, 21 | Aug 05, 21 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 39 Months (last 2 years Issuances)
- 39 Months (last 5 years Issuances)