B09B 2101/20
Filters
Official title: Filters, e.g. oil filters
B09B2101/20 (Filters) appears on 35 US grants and 8 published applications in this corpus.
Search patents in B09B- Granted patents
- 35
- Published applications
- 8
- Assignees
- 12
- Inventors
- 50
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 0 | 1 |
| 2020 | 3 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Biodegradable composite and product containing biodegradable composite23 Sep 2025US 12,420,319 B2
- Method for recycling cellulose acetate-containing material, pellets, extrudate, granulate thereof, and systems for recycling cellulose acetate-containing material19 Aug 2025US 12,390,844 B2Cerdia International GmbH
- Method for the treatment of an object contaminated with metallic particles17 Nov 2020US 10,837,082 B2Mt2, LLC
- Method for the treatment of an object contaminated with metallic particles10 Nov 2020US 10,829,835 B2Mt2, LLC
- Method for the treatment of metallic particles and objects contaminated with metallic particles22 Sep 2020US 10,781,504 B2Mt2, LLC
- Method for recycling cellulose acetate-containing material, pellets, extrudate, granulate thereof, and systems for recycling cellulose acetate-containing material16 Feb 2023US 2023/0052269 A1Cerdia International GmbH
- Biodegradable composite and product containing biodegradable composite27 Oct 2022US 2022/0339681 A1
- Mechanochemical process31 Mar 2022US 2022/0097110 A1Smart Material Printing B.V.
- System and method for recycling metals from industrial waste25 Jul 2019US 2019/0226051 A1
- Method for the treatment of an object contaminated with metallic particles8 Feb 2018US 2018/0036567 A1Mt2, LLC
Most cited
By later US patents
- Apparatus for recycling used oil filters48US 5,214,830 A1993
- Device for draining fluid from a container38US 5,546,979 AClark Technology Systems, Inc. · 1996
- Drainage platform for the draining of residual contents of a container for collection and subsequent disposal32US 5,291,921 AChem-Tainer Industries, Inc. · 1994
- Vehicle oil filter drain boot21US 5,694,990 A1997
- Device for draining fluid from a container16US 5,558,140 AClark Technology Systems, Inc. · 1996