B01D 2265/029
Special screwing connections, threaded sections
B01D2265/029 (Special screwing connections, threaded sections) appears on 73 US grants and 98 published applications in this corpus.
Search patents in B01D- Granted patents
- 73
- Published applications
- 98
- Assignees
- 63
- Inventors
- 183
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 1 |
| 2011 | 2 | 0 |
| 2012 | 2 | 8 |
| 2013 | 2 | 0 |
| 2014 | 3 | 0 |
| 2015 | 1 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 9 |
| 2018 | 2 | 3 |
| 2019 | 5 | 6 |
| 2020 | 4 | 11 |
| 2021 | 4 | 6 |
| 2022 | 11 | 9 |
| 2023 | 3 | 13 |
| 2024 | 6 | 6 |
| 2025 | 11 | 8 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter unit with a filter block, a damping layer and a housing, and process of manufacturing such a filter unit6 Oct 2026US 12,752,136 B2Dräger Safety AG & Co. KGaA
- Separating device with a separating element29 Sep 2026US 12,746,495 B2Mann+Hummel GmbH
- Adapter element and retaining device for an air/oil separator of a vacuum pump22 Sep 2026US 12,741,244 B2Busch Produktions GmbH
- Filter device for compressed air21 Jul 2026US 12,685,955 B2
- Filter system having key-fit attachment between holder and filter connector13 Jan 2026US 12,521,662 B2Caterpillar Inc.
- Filter device for compressed air2 Jul 2026US 2026/0183692 A1
- Filter device and method for mounting such a filter device25 Jun 2026US 2026/0175153 A1Atlas Copco Airpower N.V.
- Filter system with a secondary filter element and a primary filter element, and use of a secondary filter element in a filter system14 May 2026US 2026/0131271 A1Mann+Hummel GmbH
- Hvac filter apparatus23 Apr 2026US 2026/0108834 A1Rz Industries, LLC
- Filter system having key-fit attachment between holder and filter connector2 Apr 2026US 2026/0091336 A1Caterpillar Inc.
Most cited
By later US patents
- Respirator air filter cartridge with a replaceable filter element169US 5,222,488 ADonaldson Company, Inc. · 1993
- Filter system, especially for filtering the air intake of an internal combustion engine114US 5,391,212 AFilterwerk Mann & Hummel GmbH · 1995
- Oil separator41US 5,800,584 AFilterwerk Mann & Hummel GmbH · 1998
- Fastener retention system26US 6,235,073 B1Nelson Industries, Inc. · 2001
- Captive toolees fastener for securing an engine intake air filter and clamp assembly for air filter housing19US 8,323,370 B2Maradyne Corporation · 2012