B01D 61/146
Comprising multiple ultrafiltration steps
Official title: {comprising multiple ultrafiltration steps}
B01D61/146 (Comprising multiple ultrafiltration steps) appears on 153 US grants and 189 published applications in this corpus.
Search patents in B01D- Granted patents
- 153
- Published applications
- 189
- Assignees
- 144
- Inventors
- 500
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 2 |
| 2003 | 0 | 7 |
| 2004 | 5 | 5 |
| 2005 | 3 | 6 |
| 2006 | 5 | 3 |
| 2007 | 1 | 2 |
| 2008 | 4 | 4 |
| 2009 | 1 | 3 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 2 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 5 |
| 2015 | 2 | 2 |
| 2016 | 1 | 9 |
| 2017 | 1 | 7 |
| 2018 | 7 | 6 |
| 2019 | 5 | 15 |
| 2020 | 8 | 13 |
| 2021 | 7 | 10 |
| 2022 | 13 | 19 |
| 2023 | 12 | 20 |
| 2024 | 9 | 18 |
| 2025 | 17 | 17 |
| 2026 | 6 | 10 |
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
- Preparation method of milk oligosaccharides and oligosaccharide powder and food prepared thereby15 Sep 2026US 12,735,512 B2Beijing Sanyuan Foods Co., Ltd.
- Water treatment unit comprising a plurality of filtration devices26 May 2026US 12,637,368 B2Inovaya
- Method to produce a highly concentrated immunoglobulin preparation for subcutaneous use19 May 2026US 12,630,613 B2Takeda Pharmaceutical Company Limited
- Filtration units and assembly, and methods of making and using same5 May 2026US 12,616,937 B2Repligen Corporation
- Container and water treatment system20 Aug 2026US 2026/0241342 A1Yokogawa Electric Corporation
- Purification of capsular polysaccharides13 Aug 2026US 2026/0234293 A1Vaxcyte, Inc.
- Polymerized hemoglobin size fractionated via tangential flow filtration30 Jul 2026US 2026/0216300 A1Ohio State Innovation Foundation
- Continuous tangential flow filtration system2 Jul 2026US 2026/0183714 A1Eli Lilly and Company
- Preparation methods for a highly concentrated pd1 antibody solution by applying single-pass tangential flow filtration (sptff)18 Jun 2026US 2026/0167667 A1BeOne Medicines I GmbH
Most cited
By later US patents
- Salvage of autologous blood via selective membrane/sorption technologies144US 5,858,238 ABaxter Research Medical, Inc. · 1999
- Tangential flow filtration process and apparatus92US 5,256,294 AGenentech, Inc. · 1993
- Filtration system for preparation of fluids for medical applications74US 8,469,331 B2NxStage Medical, Inc. · 2013
- Tangential flow filtration process and apparatus69US 5,490,937 AGenentech, Inc. · 1996
- System and a process for membrane filtration of a dispersion67US 5,685,990 AMD Foods amba · 1997