B01D 3/30
Fractionating columns with movable parts or in which centrifugal movement is caused
B01D3/30 (Fractionating columns with movable parts or in which centrifugal movement is caused) appears on 61 US grants and 44 published applications in this corpus.
Search patents in B01D- Granted patents
- 61
- Published applications
- 44
- Assignees
- 44
- Inventors
- 176
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 5 |
| 2015 | 4 | 3 |
| 2016 | 4 | 2 |
| 2017 | 2 | 2 |
| 2018 | 2 | 3 |
| 2019 | 3 | 5 |
| 2020 | 4 | 2 |
| 2021 | 2 | 2 |
| 2022 | 3 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for substantially horizonal rotating reflux distillation apparatus6 Oct 2026US 12,752,217 B2Development Technologies, LLC
- Products and methods related to the distillation of molecules from aerosols28 Oct 2025US 12,453,930 B2Natural Extraction Systems, LLC
- Method and design of multiple counterrotating unit reactor12 Aug 2025US 12,383,846 B2Schlumberger Technology Corporation
- Magnetic spinner device with reels in a lower housing with a removably attachable lower portion16 Jul 2024US 12,036,489 B2
- Structured packing14 Mar 2023US 11,602,726 B2Curtin University
- System and method for substantially horizonal rotating reflux distillation apparatus18 Dec 2025US 2025/0381498 A1Development Technologies, LLC
- Roller assembly for rotating packed bed system21 Aug 2025US 2025/0264130 A1Hindustan Petroleum Corporation Limited
- Method and design of multiple counterrotating unit reactor12 Sep 2024US 2024/0299860 A1Schlumberger Technology Corporation
- Products and methods related to the distillation of molecules from aerosols6 Jun 2024US 2024/0181369 A1Natural Extraction Systems, LLC
- Mass transfer assembly and column with dividing wall and methods involving same2 Jun 2022US 2022/0168663 A1Koch-Glitsch, LP
Most cited
By later US patents
- Device and installations for the distillation by thin layer evaporation particularly of hydrocarbons, and process for operating this device79US 4,584,064 AElf France · 1986
- Hinged pressure relief tray54US 4,133,852 AExxon Research & Engineering Co. · 1979
- Process and apparatus for the contact and separation of immiscible fluids47US 4,371,382 ACaribbean Properties Limited · 1983
- Counter-current gas-liquid contacting device35US 4,995,945 AFlavourtech Pty. Ltd. · 1991
- Mass transfer process34US 4,283,255 AImperial Chemical Industries PLC · 1981