B01D 61/1471
Comprising multiple microfiltration steps
Official title: {comprising multiple microfiltration steps}
B01D61/1471 (Comprising multiple microfiltration steps) appears on 49 US grants and 59 published applications in this corpus.
Search patents in B01D- Granted patents
- 49
- Published applications
- 59
- Assignees
- 53
- Inventors
- 174
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 4 |
| 2006 | 0 | 0 |
| 2007 | 3 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 4 |
| 2010 | 0 | 1 |
| 2011 | 1 | 3 |
| 2012 | 2 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 3 |
| 2016 | 1 | 2 |
| 2017 | 0 | 3 |
| 2018 | 0 | 3 |
| 2019 | 2 | 5 |
| 2020 | 3 | 1 |
| 2021 | 5 | 1 |
| 2022 | 3 | 4 |
| 2023 | 3 | 5 |
| 2024 | 3 | 5 |
| 2025 | 0 | 5 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Preparation method of milk oligosaccharides and oligosaccharide powder and food prepared thereby15 Sep 2026US 12,735,512 B2Beijing Sanyuan Foods Co., Ltd.
- Device and method for separating particles in a liquid, kit containing the device, and applications of the device1 Sep 2026US 12,722,126 B2Cell.Copedia GmbH
- Manufacturing of bupivacaine multivesicular liposomes31 Dec 2024US 12,178,909 B1Pacira Pharmaceuticals, Inc.
- Manufacturing of bupivacaine multivesicular liposomes19 Nov 2024US 12,144,890 B2Pacira Pharmaceuticals, Inc.
- Manufacturing of bupivacaine multivesicular liposomes12 Mar 2024US 11,925,706 B2Pacira Pharmaceuticals, Inc.
- Method and device for treating an adipose tissue5 Mar 2026US 2026/0062671 A1
- Method of filtering wastewater and a wastewater treatment system18 Dec 2025US 2025/0382212 A1Bioscavenge Aps
- Method of filtering tannery wastewater and a tannery wastewater treatment system4 Dec 2025US 2025/0368541 A1ECCO Sko A/S
- Multistage cross-flow membrane filtration system and a method for cleaning such a system11 Sep 2025US 2025/0281883 A1GEA Systems North America LLC
- Manufacturing of bupivacaine multivesicular liposomes1 May 2025US 2025/0134814 A1Pacira Pharmaceuticals, Inc.
Most cited
By later US patents
- Microfluidic devices with porous membranes for molecular sieving, metering, and separations76US 7,279,134 B2Intel Corporation · 2007
- Filter units66US 5,208,161 APolyfiltronics N.A., Inc. · 1993
- Spinning filter separation system for oil spill clean-up operation52US 5,792,351 AThe United States of America as represented by the Secretary of the Navy · 1998
- Treatment of emulsions37US 4,846,976 AMemtec Limited · 1989
- Manufacturing of bupivacaine multivesicular liposomes31US 11,033,495 B1Pacira Pharmaceuticals, Inc. · 2021