Description
Class C22B : PRODUCTION OR REFINING OF METALS
Subclass 1/06: Preliminary treatment of ores or scrap Roasting processes (C22B 1/16 takes precedence) Sulfating roasting
C22B 1/06
Sub-Class
Stats
- 21 US PATENTS IN FORCE
- 7 US APPLICATIONS PENDING
- 10 Total Patent Owners
- 112 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12258672 | Selective sulfidation and desulfidation | Dec 27, 20 | Mar 25, 25 | Massachusetts Institute of Technology |
| 12247267 | Method of producing lithium hydroxide from lithium concentrate through sodium sulfate addition and roasting | Nov 04, 19 | Mar 11, 25 | ECOPRO INNOVATION CO., LTD. |
| 12234529 | Lithium extraction process and apparatus | Dec 01, 21 | Feb 25, 25 | U.S. Borax Inc. |
| 11873540 | Lithium extraction process and apparatus | Dec 01, 21 | Jan 16, 24 | US Borax Inc. |
| 11858824 | Process for the recovery of rare earths | May 02, 19 | Jan 02, 24 | Arafura Resources Limited |
| 11773467 | Method and system for processing rare earth concentrate ore | Oct 25, 19 | Oct 03, 23 | CHINA ENFI ENGINEERING CORPORATION |
| 11692238 | Method for disposal of waste printed circuit board thermal cracking slag and smelting soot | Nov 11, 20 | Jul 04, 23 | Beijing University of Technology |
| 11519081 | Methods for treating lithium-containing materials | Aug 09, 21 | Dec 06, 22 | NEMASKA LITHIUM INC. |
| 11085121 | Methods for treating lithium-containing materials | Dec 12, 19 | Aug 10, 21 | Nemaska Lithium Inc. |
| 10894999 | Process and apparatus for producing uranium or a rare earth element | Jun 30, 16 | Jan 19, 21 | OUTOTEC (FINLAND) OY |
| 10745777 | Oxygen injection in fluid bed ore concentrate roasting | Sep 24, 18 | Aug 18, 20 | Praxair Technology Inc. |
| 10597754 | System and process for selective rare earth extraction with sulphur recovery | May 08, 15 | Mar 24, 20 | VALE S.A. |
| 10544512 | Methods for treating lithium-containing materials | Feb 24, 15 | Jan 28, 20 | Nemaska Lithium Inc. |
| 9169534 | Recovery of base metals from sulphide ores and concentrates | Jul 23, 13 | Oct 27, 15 | VALE S.A. |
| 8920534 | Method for fabricating a biocompatible material having a high carbide phase and such material | Mar 26, 07 | Dec 30, 14 | HOWMEDICA OSTEONICS CORP. |
| 8864871 | Method for manufacturing copper nanoparticles using microwaves | Aug 27, 07 | Oct 21, 14 | SAMSUNG ELECTRO-MECHANICS CO., LTD. |
| 8352064 | Revert blend algorithm and apparatus using the algorithm | Apr 05, 11 | Jan 08, 13 | UNITED TECHNOLOGIES CORPORATION |
| 8137654 | Method of roasting material containing at least one of V, Mo and Ni and rotary kiln for roasting the same | Feb 21, 06 | Mar 20, 12 | SUMITOMO HEAVY INDUSTRIES, LTD., JFE Material Co., Ltd., |
| 7731777 | Method for processing anode sludge | Aug 31, 04 | Jun 08, 10 | OUTOTEC OYJ |
| 7662305 | Mercury dispensing compositions and device using the same | Jan 05, 06 | Feb 16, 10 | SAES GETTERS S.P.A. |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0347,803 | METHOD FOR SELECTIVELY RECOVERING VALUABLE METAL IN WASTE LITHIUM BATTERY | Apr 28, 22 | Oct 17, 24 | Not available |
| 2024/0287,644 | RECOVERY METHOD FOR VALUABLE METALS IN COPPER ANODE SLIME | Oct 12, 22 | Aug 29, 24 | Not available |
| 2024/0222,733 | METHOD FOR EXTRACTING VALUABLE METALS FROM BATTERY WASTE | Dec 21, 23 | Jul 04, 24 | OXLEIGH RECYCLING TECHNOLOGIES PTY LTD |
| 2024/0132,998 | Lithium Extraction Process and Apparatus | Jan 03, 24 | Apr 25, 24 | Not available |
| 2024/0068,113 | METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS | Nov 06, 23 | Feb 29, 24 | NEMASKA LITHIUM INC. |
| 2019/0112,687 | OXYGEN INJECTION IN FLUID BED ORE CONCENTRATE ROASTING | Sep 24, 18 | Apr 18, 19 | Not available |
| 2016/0355,905 | METHOD FOR TREATING SULFIDE-FREE MINERALS | Dec 11, 13 | Dec 08, 16 | OUTOTEC (FINLAND) OY |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 36 Months (last 2 years Issuances)
- 36 Months (last 5 years Issuances)