C01F 7/147
Apparatus for precipitation
C01F7/147 (Apparatus for precipitation) appears on 17 US grants and 10 published applications in this corpus.
Search patents in C01F- Granted patents
- 17
- Published applications
- 10
- Assignees
- 9
- Inventors
- 39
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 2 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat exchanger3 Feb 2026US 12,540,775 B2
- Bayer process11 Jun 2024US 12,006,225 B2Rio Tinto Alcan International Limited
- Heat exchanger4 Jun 2024US 12,000,656 B2
- Apparatus and method for refining a process liquor by gravity settling19 Jan 2016US 9,238,184 B2Rio Tinto Alcan International Limited
- Aluminum hydroxide aggregated particles, process for producing the same, vessel used therefor, and process for producing aluminum hydroxide powder12 Oct 2010US 7,811,546 B2Sumitomo Chemical Company, Limited
- Bayer Process22 Aug 2024US 2024/0279075 A1Rio Tinto AIcan International Limited
- Heat Exchanger22 Aug 2024US 2024/0280323 A1
- Bayer Process14 Jan 2021US 2021/0009435 A1Rio Tinto Alcan International Limited
- Heat Exchanger10 Sep 2020US 2020/0284514 A1
- Apparatus and method for refining a process liquor by gravity settling15 Aug 2013US 2013/0206707 A1Rio Tinto Alcan International Limited
Most cited
By later US patents
- Process for continuous crystallization46US 4,332,592 A1982
- Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy23US 4,921,551 AGeneral Motors Corporation · 1990
- Process for producing coarse grains of aluminum hydroxide18US 4,364,919 ASumitomo Aluminium Smelting Company, Limited · 1982
- Method for transferring heat between process liquor streams18US 5,027,891 AAlcan International Limited · 1991
- Apparatus for extracting alumina from bauxite11US 4,238,159 AEkato-Werk Erich Karl Todtenhaupt · 1980