B01D 2313/901
Integrated prefilter
B01D2313/901 (Integrated prefilter) appears on 55 US grants and 71 published applications in this corpus.
Search patents in B01D- Granted patents
- 55
- Published applications
- 71
- Assignees
- 57
- Inventors
- 144
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 4 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 3 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 2 | 6 |
| 2010 | 2 | 1 |
| 2011 | 3 | 2 |
| 2012 | 2 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 5 |
| 2017 | 1 | 1 |
| 2018 | 0 | 5 |
| 2019 | 3 | 0 |
| 2020 | 3 | 7 |
| 2021 | 3 | 6 |
| 2022 | 2 | 6 |
| 2023 | 2 | 6 |
| 2024 | 10 | 3 |
| 2025 | 3 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid filtration system with single use filter and integrated integrity test device and method of using same2 Jun 2026US 12,643,062 B2Cytiva US LLC
- Method of making a cartridge filter7 Apr 2026US 12,594,527 B2A. O. Smith Corporation
- Artificial lung device27 May 2025US 12,311,088 B2Nipro Corporation
- Control method of control system for controlling water purification module29 Apr 2025US 12,285,722 B2Kemflo International Co., Ltd.
- Filter module for water dispensing device25 Feb 2025US 12,234,171 B2LG Electronics Inc.
- Integrated pre-filter for uf/mf membrane system30 Jul 2026US 2026/0216654 A1
- Water filtration device25 Jun 2026US 2026/0176160 A1Caware Filtering Corporation
- Disaster relief device30 Apr 2026US 2026/0116802 A1
- Pre-treatment of seawater16 Oct 2025US 2025/0319439 A1ACWA POWER Company
- Artificial lung device31 Jul 2025US 2025/0242098 A1Nipro Corporation
Most cited
By later US patents
- Personal water filter bottle system161US 6,569,329 B1Innova Pure Water Inc. · 2003
- Water purifying and vending apparatus84US 4,623,467 AInternational Manufacturing and Water Vending Company · 1986
- Replacement filter cartridge for water filtering system82US 6,325,929 B1Cuno Incorporated · 2001
- Encapsulated filter cartridge54US 7,081,201 B23M Innovative Properties Company · 2006
- Reverse osmosis water purifier48US 4,744,895 AAquasciences International, Inc. · 1988