B01J 6/002
Using rotating drums
Official title: {using rotating drums}
B01J6/002 (Using rotating drums) appears on 45 US grants and 47 published applications in this corpus.
Search patents in B01J- Granted patents
- 45
- Published applications
- 47
- Assignees
- 47
- Inventors
- 154
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 4 |
| 2012 | 0 | 3 |
| 2013 | 6 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 7 |
| 2016 | 1 | 1 |
| 2017 | 7 | 4 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 4 | 5 |
| 2022 | 1 | 5 |
| 2023 | 4 | 0 |
| 2024 | 4 | 4 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Magnetic field particle confinement in rotary tube furnace2 Dec 2025US 12,485,396 B2Niron Magnetics, Inc.
- Methods for purifying and recycling lead from spent lead-acid batteries15 Apr 2025US 12,278,352 B2CPS Technology Holdings LLC
- Containerized processing of activated aluminum19 Nov 2024US 12,145,142 B1Ltag Systems LLC
- Preparation method for propylene epoxidation catalyst and use thereof5 Mar 2024US 11,918,987 B2Wanhua Chemical Group Co., Ltd.
- Methods for purifying and recycling lead from spent lead-acid batteries10 Jul 2025US 2025/0226473 A1CPS Technology Holdings LLC
- Production of calcined material with separate calcination of exhaust dust15 Aug 2024US 2024/0270638 A1Refratechnik Holding GmbH
- Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries13 Jun 2024US 2024/0194962 A1Clarios Germany GmbH & Co. KG
- Petroleum coke treatment apparatus, process, and treatment system22 Feb 2024US 2024/0059568 A1China Petroleum & Chemical Corporation
- Methods for purifying and recycling lead from spent lead-acid batteries18 Jan 2024US 2024/0021905 A1CPS Technology Holdings LLC
Most cited
By later US patents
- Method and apparatus for heat treating pulverous raw materials12US 4,022,568 AF. L. Smidth & Co. · 1977
- Method and apparatus for calcining limestone using coal combustion for heating12US 4,745,869 AWestinghouse Electric Corp. · 1988
- Radial mixing devices for rotating inclined reactors9US 8,454,896 B2Cobarr S.p.A. · 2013
- Method for heating powder material and apparatus for carrying out said method8US 4,276,020 ASumitomo Cement Co., Ltd. · 1981
- Installations for the calcination of alumina and similar products5US 4,286,944 AAluminium Pechiney · 1981