B01D 2273/28
Making use of vacuum or underpressure
B01D2273/28 (Making use of vacuum or underpressure) appears on 125 US grants and 108 published applications in this corpus.
Search patents in B01D- Granted patents
- 125
- Published applications
- 108
- Assignees
- 112
- Inventors
- 301
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 7 |
| 2007 | 0 | 6 |
| 2008 | 4 | 8 |
| 2009 | 1 | 6 |
| 2010 | 4 | 4 |
| 2011 | 5 | 3 |
| 2012 | 3 | 2 |
| 2013 | 3 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 6 |
| 2018 | 2 | 9 |
| 2019 | 5 | 5 |
| 2020 | 4 | 7 |
| 2021 | 4 | 14 |
| 2022 | 7 | 7 |
| 2023 | 7 | 6 |
| 2024 | 3 | 2 |
| 2025 | 3 | 4 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Flow stream filtering method and system8 Sep 2026US 12,729,673 B2Le Groupe Dsd Inc.
- Vacuum generation process for deposition of biomedical implant materials6 Jan 2026US 12,515,169 B2Zimmer, Inc.
- Aerosol removal1 Jul 2025US 12,343,669 B2Hewlett-Packard Development Company, L. P.
- Vacuum filter assembly for processing bulk granular material and filter mounting assembly therefore24 Jun 2025US 12,337,269 B2Bulk Tank, Inc.
- Vacuum filter assembly for cleansing air for use in transfer of bulk, granular material as in conveying vehicles22 Apr 2025US 12,280,327 B2Bulk Tank, Inc.
- Add on auto clean assembly for a vacuum filtration system of a dry bulk trailer and method of using the same8 Oct 2026US 2026/0306984 A1Bulk Tank, Inc.
- Surface cleaning apparatus with filter23 Jul 2026US 2026/0207025 A1BISSELL Inc.
- Systems and methods for scheduling filter maintenance of an imaging system23 Jul 2026US 2026/0208086 A1GE Precision Healthcare LLC
- Method and device for removing reactive particles from a vacuum environment, and process plant for producing monocrystalline silicon ingots19 Mar 2026US 2026/0077291 A1Flowserve Management Company
- A flow stream filtering method and system4 Sep 2025US 2025/0277486 A1Le Groupe Dsd Inc.
Most cited
By later US patents
- Dual mode laser smoke evacuation system with sequential filter monitor and vacuum compensation360US 5,242,474 ASorenson Laboratories, Inc. · 1993
- Smoke evacuator system for use in laser surgery336US 4,701,193 AXanar, Inc. · 1987
- Particulate contamination control method and filtration device77US 4,604,111 A1986
- Vacuum loader65US 6,936,085 B2DeMarco Maxvac Corporation · 2005
- Deposition system and method61US 7,419,532 B2Caterpillar Inc. · 2008