B01D 46/0043
Containing fixed gas displacement elements or cores
Official title: {containing fixed gas displacement elements or cores}
B01D46/0043 (Containing fixed gas displacement elements or cores) appears on 283 US grants and 321 published applications in this corpus.
Search patents in B01D- Granted patents
- 283
- Published applications
- 321
- Assignees
- 222
- Inventors
- 760
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 10 |
| 2003 | 4 | 5 |
| 2004 | 7 | 5 |
| 2005 | 2 | 7 |
| 2006 | 1 | 3 |
| 2007 | 3 | 2 |
| 2008 | 3 | 7 |
| 2009 | 2 | 11 |
| 2010 | 3 | 7 |
| 2011 | 4 | 7 |
| 2012 | 8 | 2 |
| 2013 | 2 | 6 |
| 2014 | 3 | 0 |
| 2015 | 5 | 6 |
| 2016 | 2 | 5 |
| 2017 | 10 | 9 |
| 2018 | 5 | 12 |
| 2019 | 2 | 20 |
| 2020 | 14 | 33 |
| 2021 | 17 | 42 |
| 2022 | 26 | 48 |
| 2023 | 26 | 28 |
| 2024 | 29 | 18 |
| 2025 | 18 | 16 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Indoor air cleaning system8 Sep 2026US 12,729,868 B2Microjet Technology Co., Ltd.
- Integrated dust extractor and power tool11 Aug 2026US 12,703,053 B2Milwaukee Electric Tool Corporation
- Vacuum cleaning device4 Aug 2026US 12,697,005 B2Black & Decker Inc.
- Z-shield™ filtered air protective system4 Aug 2026US 12,697,512 B2
- Inline air filter apparatuses, systems and methods21 Jul 2026US 12,687,316 B1Rectorseal Corporation
- Conversion Assembly for Converting an Outside-to-inside Coalescing Filter System to an Inside-to-outside Coalescing Filter System for Air and Oil Separators and Method of Use20 Aug 2026US 2026/0241318 A1
- Filter device and housing of battery with filter device6 Aug 2026US 2026/0225018 A1Mann+Hummel GmbH
- Ozone disinfection device with an ozone recovery module23 Jul 2026US 2026/0207807 A1Dcstar Inc
- Power tool including an air filter and debris collector23 Jul 2026US 2026/0208088 A1Milwaukee Electric Tool Corporation
- Smart multifunction air purification and ventilation9 Jul 2026US 2026/0194247 A1Nature's Cooling Solutions
Most cited
By later US patents
- Conical filter341US 5,902,364 ADonaldson Company, Inc. · 1999
- Reverse flow air filter arrangement and method292US 5,613,992 ADonaldson Company, Inc. · 1997
- Filter connection for a smoke evacuation device251US 10,631,916 B2Megadyne Medical Products, Inc. · 2020
- Reverse flow air filter arrangement and method215US 5,897,676 ADonaldson Company, Inc. · 1999
- Air cleaner/noise silencer assembly117US 5,106,397 AFord Motor Company · 1992