B01D 46/80
Chemical processes for the removal of the retained particles
Official title: Chemical processes for the removal of the retained particles, e.g. by burning
B01D46/80 (Chemical processes for the removal of the retained particles) appears on 359 US grants and 387 published applications in this corpus.
Search patents in B01D- Granted patents
- 359
- Published applications
- 387
- Assignees
- 199
- Inventors
- 929
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 6 |
| 2003 | 4 | 4 |
| 2004 | 2 | 15 |
| 2005 | 3 | 10 |
| 2006 | 18 | 20 |
| 2007 | 5 | 11 |
| 2008 | 9 | 24 |
| 2009 | 9 | 16 |
| 2010 | 8 | 16 |
| 2011 | 14 | 14 |
| 2012 | 21 | 13 |
| 2013 | 11 | 12 |
| 2014 | 13 | 14 |
| 2015 | 16 | 6 |
| 2016 | 7 | 5 |
| 2017 | 5 | 34 |
| 2018 | 9 | 26 |
| 2019 | 37 | 45 |
| 2020 | 31 | 23 |
| 2021 | 28 | 20 |
| 2022 | 18 | 15 |
| 2023 | 11 | 12 |
| 2024 | 6 | 12 |
| 2025 | 7 | 4 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Composite, zoned oxidation catalyst for a compression ignition internal combustion engine25 Aug 2026US 12,714,990 B2Johnson Matthey Public Limited Company
- Heater for exhaust pollution mitigation26 May 2026US 12,637,967 B1ECC TEC MSJ Incorporated
- Method and system for detecting and quantifying regeneration events in a diesel particulate filter5 May 2026US 12,618,354 B2Intangles Lab Pvt. Ltd.
- Air purification apparatus7 Apr 2026US 12,594,518 B2Khanfilter, Inc.
- Methods for regenerating a filter medium and cleaning flue gas7 Apr 2026US 12,594,519 B2W. L. Gore & Associates, Inc.
- Filter and method for manufacturing same10 Sep 2026US 2026/0263982 A1NGK Insulators, Ltd.
- In-situ regeneration of filter medium for improving catalytic efficiency10 Sep 2026US 2026/0264016 A1W. L. Gore & Associates, Inc.
- Elimination of contaminants of concern including poly- and perfluoroalkyl substances (pfas) in a gasification process using an indirectly-heated dryer with closed-loop thermal fluid heat recovery10 Sep 2026US 2026/0265625 A1Aries Clean Technologies LLC
- Fuel borne catalyst composition for oxidative soot removal16 Jul 2026US 2026/0201263 A1Umicore Specialty Materials Brugge
- Control device, control method, and engine system16 Jul 2026US 2026/0201824 A1Komatsu Ltd.
Most cited
By later US patents
- High temperature nanofilter, system and method99US 7,052,532 B13M Innovative Properties Company · 2006
- Filter and means for regeneration thereof89US 5,087,272 A1992
- Carbon particulates cleaning device69US 4,516,993 ANippon Soken, Inc. · 1985
- Method of filtering particles from a flue gas, a flue gas filter means and a vehicle65US 5,497,620 A1996
- Heated cellular structures64US 5,259,190 ACorning Incorporated · 1993