B01D 2221/00
Applications of separation devices
B01D2221/00 (Applications of separation devices) appears on 1,294 US grants and 1,239 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,294
- Published applications
- 1,239
- Assignees
- 856
- Inventors
- 2,617
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 10 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 16 | 0 |
| 1995 | 14 | 0 |
| 1996 | 36 | 0 |
| 1997 | 36 | 0 |
| 1998 | 44 | 0 |
| 1999 | 37 | 0 |
| 2000 | 39 | 0 |
| 2001 | 28 | 7 |
| 2002 | 19 | 38 |
| 2003 | 36 | 30 |
| 2004 | 23 | 30 |
| 2005 | 24 | 34 |
| 2006 | 29 | 33 |
| 2007 | 23 | 35 |
| 2008 | 17 | 26 |
| 2009 | 20 | 37 |
| 2010 | 21 | 30 |
| 2011 | 25 | 49 |
| 2012 | 27 | 55 |
| 2013 | 44 | 65 |
| 2014 | 46 | 47 |
| 2015 | 41 | 49 |
| 2016 | 35 | 30 |
| 2017 | 36 | 34 |
| 2018 | 41 | 49 |
| 2019 | 36 | 63 |
| 2020 | 45 | 91 |
| 2021 | 69 | 88 |
| 2022 | 56 | 84 |
| 2023 | 65 | 66 |
| 2024 | 64 | 62 |
| 2025 | 59 | 60 |
| 2026 | 30 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 2221/10Separation devices for use in medical, pharmaceutical or laboratory applicationsIndexing code400
- B01D 2221/04Separation devices for treating liquids from earth drilling, miningIndexing code325
- B01D 2221/08Mobile separation devicesIndexing code191
- B01D 2221/12Separation devices for treating rain or storm waterIndexing code144
- B01D 2221/02Small separation devices for domestic applicationIndexing code139
- B01D 2221/14Separation devices for workshops, car or semiconductor industryIndexing code87
- B01D 2221/06Separation devices for industrial food processing or agricultureIndexing code81
- B01D 2221/16Separation devices for cleaning ambient airIndexing code34
Recent patents
- Produced water degassing using ejector6 Oct 2026US 12,753,686 B1Saudi Arabian Oil Company
- Compact in-situ gas separator for substrate processing systems29 Sep 2026US 12,746,485 B2Lam Research Corporation
- Carbon capture entrainment system and method29 Sep 2026US 12,746,507 B2Purdue Research Foundation
- Removal device15 Sep 2026US 12,734,466 B2Aalberts hfc B.V.
- System and method for making a building carbon neutral1 Sep 2026US 12,723,783 B2Carrier Corporation
- A method of capturing carbon dioxide from atmospheric air1 Oct 2026US 2026/0295497 A1Repsol, S. A.
- Biological Material Purification Method, Magnetic Stand, And Biological Material Purification Device24 Sep 2026US 2026/0284552 A1Seiko Epson Corporation
- Environmental heat-driven liquid regenerator method24 Sep 2026US 2026/0284581 A1
- Continuous purification device10 Sep 2026US 2026/0263966 A1Stamm Vegh Corporation
- Apparatus and method for separating and concentrating a component of a fluid10 Sep 2026US 2026/0263969 A1Biomet Biologics, LLC
Most cited
By later US patents
- Apparatus and method for separating particles from a cyclonic fluid flow270US 6,251,296 B1G. B. D. Corp. · 2001
- Enhanced yield platelet collection systems and methods216US 5,370,802 ABaxter International Inc. · 1994
- Centrifugation pheresis system202US 4,834,890 ABaxter International Inc. · 1989
- Time based interface detection systems for blood processing apparatus186US 5,316,667 ABaxter International Inc. · 1994
- Separator float for blood collection tubes with water swellable material176US 5,736,033 A1998