B01D 29/661
By using gas-bumps
Official title: {by using gas-bumps}
B01D29/661 (By using gas-bumps) appears on 81 US grants and 69 published applications in this corpus.
Search patents in B01D- Granted patents
- 81
- Published applications
- 69
- Assignees
- 63
- Inventors
- 164
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 0 |
| 2003 | 0 | 3 |
| 2004 | 2 | 2 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 4 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 2 | 0 |
| 2011 | 2 | 7 |
| 2012 | 0 | 4 |
| 2013 | 2 | 3 |
| 2014 | 3 | 6 |
| 2015 | 1 | 5 |
| 2016 | 1 | 0 |
| 2017 | 2 | 4 |
| 2018 | 3 | 2 |
| 2019 | 2 | 4 |
| 2020 | 4 | 5 |
| 2021 | 4 | 2 |
| 2022 | 0 | 4 |
| 2023 | 1 | 4 |
| 2024 | 4 | 3 |
| 2025 | 2 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Candle filter device6 Oct 2026US 12,752,222 B2Lenzing Aktiengesellschaft
- Filtration device14 Apr 2026US 12,599,852 B2SSENG Co., Ltd.
- Filtration systems with selective pulse control13 Jan 2026US 12,521,664 B2Donaldson Company, Inc.
- Method and device for controlling the water level in ground14 Oct 2025US 12,442,146 B2Altop Patents II B.V.
- Bulk material receiving, conveying, storing, and dispensing20 May 2025US 12,304,725 B2Owens-Brockway Glass Container Inc.
- Backflush filter assembly9 Jan 2025US 2025/0010223 A1Rosedale Products, Inc.
- Milking device provided with a milk filter29 Aug 2024US 2024/0284864 A1Lely Patent N. V.
- Agricultural sampling system and related methods13 Jun 2024US 2024/0189744 A1Precision Planting LLC
- Backflush filter assembly2 May 2024US 2024/0139653 A1Rosedale Products, Inc.
- Filtration device28 Dec 2023US 2023/0415075 A1SSENG Co., Ltd.
Most cited
By later US patents
- Pressure filter with vibratory impactor125US 4,526,688 AIndustrial Filter & Pump Mfg. Co. · 1985
- Filter apparatus for continuously thickening suspensions91US 4,511,471 ADrM, Dr. Muller AG · 1985
- Pneumatic hydro-pulse filter system and method of operation81US 4,552,669 AMott Metallurgical Corporation · 1985
- Apparatus and method including a hydrocyclone separator in combination with a tubular filter51US 5,478,484 ASerck Baker Limited · 1995
- Backwash method and apparatus43US 5,114,596 AThe Graver Company · 1992