B01D 33/23
Construction of discs or component sectors thereof
B01D33/23 (Construction of discs or component sectors thereof) appears on 142 US grants and 116 published applications in this corpus.
Search patents in B01D- Granted patents
- 142
- Published applications
- 116
- Assignees
- 75
- Inventors
- 251
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 8 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 1 |
| 2004 | 0 | 3 |
| 2005 | 0 | 5 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 2 | 1 |
| 2009 | 2 | 3 |
| 2010 | 0 | 4 |
| 2011 | 1 | 3 |
| 2012 | 1 | 4 |
| 2013 | 3 | 10 |
| 2014 | 6 | 5 |
| 2015 | 3 | 10 |
| 2016 | 6 | 9 |
| 2017 | 6 | 5 |
| 2018 | 4 | 9 |
| 2019 | 7 | 3 |
| 2020 | 2 | 5 |
| 2021 | 10 | 6 |
| 2022 | 3 | 7 |
| 2023 | 3 | 6 |
| 2024 | 5 | 4 |
| 2025 | 1 | 2 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Disc filter8 Sep 2026US 12,728,371 B2
- Continuous disc filter device25 Nov 2025US 12,478,903 B2Valmet Technologies Oy
- Apparatus and method for shrinking synthetic filter fabric22 Oct 2024US 12,122,086 B2Valmet Technologies Oy
- Filter apparatus, filter disc sectors, filter elements and uses15 Oct 2024US 12,115,476 B2
- Fluid filtering apparatus and method20 Aug 2024US 12,064,716 B2
- Filter apparatus and method30 Apr 2026US 2026/0115634 A1
- Filter bag and filter module for a rotary disk filter and rotary disk filter2 Apr 2026US 2026/0091330 A1
- Separation device, sheet production apparatus, and method of producing filtration product19 Mar 2026US 2026/0077282 A1Seiko Epson Corporation
- Grid structure for filter device22 Jan 2026US 2026/0021429 A1Andritz Separation Inc.
- Disc filter21 Aug 2025US 2025/0262576 A1
Most cited
By later US patents