B03B 1/02
Preparatory heating
B03B1/02 (Preparatory heating) appears on 49 US grants and 19 published applications in this corpus.
Search patents in B03B- Granted patents
- 49
- Published applications
- 19
- Assignees
- 40
- Inventors
- 107
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 2 |
| 2015 | 0 | 0 |
| 2016 | 2 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Reclamation of waste sand1 Jul 2025US 12,343,733 B2Resand Oy
- Method of separating grains of valuable minerals, precious metals, rare-earth metals, precious and semi-precious stones from natural ores in the aquatic environment by means of the phenomenon of adhesion11 Apr 2023US 11,623,225 B2
- Flow-type field-flow fractionation apparatus28 Feb 2023US 11,590,511 B2Shimadzu Corporation
- System for powder heat treatment and classification via fluidized bed13 Jul 2021US 11,059,048 B2Raytheon Technologies Corporation
- System for powder heat treatment and classification via fluidized bed4 Dec 2018US 10,144,011 B2United Technologies Corporation
- Method of recovering valuable materials10 Apr 2025US 2025/0115487 A1Dowa Eco-System Co., Ltd.
- Reclamation of waste sand12 Dec 2024US 2024/0408612 A1Resand Oy
- Method and system for separating black mass from electrodes of spent lithium ion batteries2 May 2024US 2024/0145803 A1Agr Lithium Inc.
- Method of separating grains of valuable minerals, precious metals, rare-earth metals, precious and semi-precious stones from natural ores in the aquatic environment by means of the phenomenon of adhesion.25 Aug 2022US 2022/0266260 A1
- Flow-type field-flow fractionation apparatus2 Sep 2021US 2021/0268514 A1Shimadzu Corporation
Most cited
By later US patents
- Method for beneficiating by carbonaceous refuse56US 4,887,722 A1989
- Oil shale sorting33US 3,992,287 A1976
- Method of separating metal alloy particles33US 5,060,871 AAlcan International Limited · 1991
- Air separation apparatus and system22US 4,405,451 ABancohio National Bank · 1983
- Method for concentrating heavy minerals in the solids tailings from hot water extraction of tar sands20US 4,150,093 ACanada-Cities Service, Ltd. · 1979