B01D 2311/04
Specific process operations in the feed stream
Official title: Specific process operations in the feed stream; Feed pretreatment
B01D2311/04 (Specific process operations in the feed stream) appears on 1,229 US grants and 1,639 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,229
- Published applications
- 1,639
- Assignees
- 996
- Inventors
- 3,800
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 17 | 0 |
| 1994 | 11 | 0 |
| 1995 | 13 | 0 |
| 1996 | 22 | 0 |
| 1997 | 23 | 0 |
| 1998 | 20 | 0 |
| 1999 | 25 | 0 |
| 2000 | 20 | 0 |
| 2001 | 26 | 2 |
| 2002 | 30 | 38 |
| 2003 | 23 | 48 |
| 2004 | 34 | 56 |
| 2005 | 21 | 43 |
| 2006 | 24 | 39 |
| 2007 | 25 | 37 |
| 2008 | 23 | 43 |
| 2009 | 19 | 37 |
| 2010 | 22 | 54 |
| 2011 | 32 | 59 |
| 2012 | 31 | 48 |
| 2013 | 32 | 69 |
| 2014 | 28 | 66 |
| 2015 | 39 | 70 |
| 2016 | 29 | 62 |
| 2017 | 35 | 87 |
| 2018 | 46 | 85 |
| 2019 | 75 | 85 |
| 2020 | 58 | 94 |
| 2021 | 62 | 73 |
| 2022 | 64 | 100 |
| 2023 | 67 | 104 |
| 2024 | 55 | 99 |
| 2025 | 55 | 94 |
| 2026 | 39 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Purification of oligosaccharides from a fermentation broth by using filtration15 Sep 2026US 12,735,443 B2Chr. Hansen A/S
- Water treatment method and water treatment agent composition8 Sep 2026US 12,728,390 B2Organo Corporation
- Method for efficiently extracting and separating high-purity tetrodotoxin from pufferfish viscera18 Aug 2026US 12,709,618 B2Zhongyang Biotechnology (Shanghai) Co., LTD.
- Alkylated cyclodextrin compositions and processes for preparing and using the same4 Aug 2026US 12,698,348 B2CyDex Pharmaceuticals, Inc.
- Recycling automotive phosphate rinse water stream30 Jun 2026US 12,668,506 B2Ecolab USA Inc.
- Utilization of an ultra-high pressure reverse osmosis membrane system to treat industrial wastewater or a reverse osmosis reject waste stream8 Oct 2026US 2026/0308017 A1Renovo Resources LLC
- Raw Material Liquid Flow Dehydration System and Raw Material Liquid Flow Dehydration Method10 Sep 2026US 2026/0264019 A1Asahi Kasei Kabushiki Kaisha
- System and Method for Desalination of Water3 Sep 2026US 2026/0257175 A1FSubsea AS
- Method for Organic-Solvent Removal27 Aug 2026US 2026/0249247 A1Asahi Kasei Kabushiki Kaisha
- Method for purifying 1,1,1,2,3,3-hexafluoropropane27 Aug 2026US 2026/0250221 A1Arkema France
Most cited
By later US patents
- Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof490US 5,591,344 AAksys, Ltd. · 1997
- Blood collection and processing system252US 5,100,564 APall Corporation · 1992
- Hemodialysis machine with automatic priming by induced pressure pulses251US 5,863,421 AAksys, Ltd. · 1999
- Method of rinsing back blood to hemodialysis patient243US 5,690,831 AAksys, Ltd. · 1997
- Methods for ultrafiltration control in hemodialysis212US 5,725,776 AAksys, Ltd. · 1998