B01D 33/42
Concentrically or coaxially
Official title: concentrically or coaxially
B01D33/42 (Concentrically or coaxially) appears on 54 US grants and 40 published applications in this corpus.
Search patents in B01D- Granted patents
- 54
- Published applications
- 40
- Assignees
- 35
- Inventors
- 81
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 2 |
| 2002 | 5 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 3 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 3 | 3 |
| 2021 | 3 | 4 |
| 2022 | 4 | 3 |
| 2023 | 2 | 4 |
| 2024 | 6 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for ice bath filtering22 Sep 2026US 12,741,241 B2Lowtemp Industries LLC
- Multi-structure filtration device for filtering, separating, and dehydrating foreign substances in water18 Mar 2025US 12,251,653 B2
- Filtration container assemblies and methods18 Feb 2025US 12,226,719 B2Grayl Inc.
- Filtration container assemblies and methods10 Dec 2024US 12,161,958 B2Grayl Inc.
- Filtration container assemblies and methods24 Sep 2024US 12,097,450 B2Grayl Inc.
- Filtration container assemblies and methods15 May 2025US 2025/0153077 A1Grayl Inc.
- System and Method for Ice Bath Filtering2 Jan 2025US 2025/0001335 A1Lowtemp Industries LLC
- Filtration container assemblies and methods2 May 2024US 2024/0139657 A1Grayl Inc.
- Filtration container assemblies and methods21 Mar 2024US 2024/0091682 A1Grayl Inc.
- Filtration container assemblies and methods21 Dec 2023US 2023/0405498 A1Grayl Inc.
Most cited
By later US patents
- Rotary separator apparatus and method56US 6,227,379 B1NTH, Inc. · 2001
- Single pass mud rejuvenation system and method50US 4,639,258 A1987
- Multiple stage high efficiency rotary filter system48US 6,217,637 B12001
- Rotary separator apparatus37US 5,853,585 ANTH, Inc. · 1998
- Double drum waste water screen34US 5,433,849 ALyco Manufacturing, Inc. · 1995