B03B 5/626
Helical separators
Official title: {Helical separators}
B03B5/626 (Helical separators) appears on 49 US grants and 21 published applications in this corpus.
Search patents in B03B- Granted patents
- 49
- Published applications
- 21
- Assignees
- 29
- Inventors
- 61
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 3 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 2 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spiral separator and apparatus therefor10 Mar 2026US 12,569,860 B2Orekinetics Investments Pty Ltd
- Spiral separators and parts therefore9 Jan 2024US 11,865,548 B2Orekinetics Investments Pty Ltd
- Horizontally disposed serial elutriation apparatus4 Apr 2023US 11,618,038 B1
- Apparatus for separating particles from a particulate suspension3 Jan 2023US 11,541,332 B2
- Spiral chute for mineral processing4 Oct 2022US 11,458,482 B2
- Cascading density separators for facilitating density-based classification of particulate material12 Mar 2026US 2026/0070066 A1
- Spiral separator and apparatus therefor25 Jan 2024US 2024/0024893 A1Orekinetics Investments Pty Ltd
- Coarse coal slime classifying system and method13 Jul 2023US 2023/0219100 A1Shaanxi Zhengtong Coal Industry Co., Ltd.
- Spiral separators and parts therefore2 Jun 2022US 2022/0168749 A1Orekinetics Investments Pty Ltd
- Spiral chute for mineral processing31 Mar 2022US 2022/0097077 A1
Most cited
By later US patents
- Mineral processing apparatus32US 4,505,811 AVickers Australia Limited · 1985
- Spiral concentrator25US 5,472,096 AMultotec Cyclones (PTY) Limited · 1995
- Spiral separators19US 4,189,378 AMinore Pty. Ltd. · 1980
- Process for cleaning and dewatering fine coal18US 4,128,474 ALinatex Corporation of America · 1978
- Method and apparatus for splitting fluid flow in a membraneless particle separation system17US 8,931,644 B2Palo Alto Research Center Incorporated · 2015