B01F 21/504
Sieves, i.e. perforated plates or walls
Official title: {Sieves, i.e. perforated plates or walls}
B01F21/504 (Sieves, i.e. perforated plates or walls) appears on 23 US grants and 17 published applications in this corpus.
Search patents in B01F- Granted patents
- 23
- Published applications
- 17
- Assignees
- 17
- Inventors
- 31
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 3 |
| 2020 | 4 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Eroding assembly for chlorinator with removable sieve and weir10 Mar 2026US 12,570,557 B2Hammonds Technical Services, Inc.
- Evaporation-limiting inserts for reagent containers and related methods of use6 May 2025US 12,290,817 B2Gen-Probe Incorporated
- Fluid injection system1 Dec 2020US 10,850,240 B2Chapin Manufacturing, Inc.
- Evaporation-limiting inserts for reagent containers and related methods of use13 Oct 2020US 10,799,870 B2Gen-Probe Incorporated
- Fluid injection system with fertigation basket29 Sep 2020US 10,786,788 B2Chapin Manufacturing, Inc.
- Eroding assembly for chlorinator with removable sieve and weir18 Jun 2026US 2026/0167535 A1Hammonds Technical Services, Inc.
- Evaporation-limiting inserts for reagent containers and related methods of use8 May 2025US 2025/0144635 A1Gen-Probe Incorporated
- Eroding assembly for chlorinator with removable sieve and weir9 Nov 2023US 2023/0357061 A1Hammonds Technical Services, Inc.
- Evaporation-limiting inserts for reagent containers and related methods of use14 Jan 2021US 2021/0008561 A1Gen-Probe Incorporated
- Device and method for mixing, in particular dispersing31 Oct 2019US 2019/0329198 A1Buhler AG
Most cited
By later US patents
- Tablet chlorinator apparatus35US 5,441,711 A1995
- Apparatus and method for mixing by agitation in a multichambered mixing apparatus including a pre-agitation mixing chamber32US 7,090,391 B2Reika Kogyo Kabushiki Kaisha · 2006
- Apparatus and method for mixing by agitation in a multichambered mixing apparatus including a pre-agitation mixing chamber32US 7,293,909 B2Reika Kogyo Kabushiki Kaisha · 2007
- Low shear polymer dissolution apparatus24US 5,222,807 AGACO Manufacturing Division of Gaddis Petroleum Corporation · 1993
- Chlorination apparatus and method18US 6,337,024 B12002