B01D 71/14
Esters of organic acids
B01D71/14 (Esters of organic acids) appears on 239 US grants and 222 published applications in this corpus.
Search patents in B01D- Granted patents
- 239
- Published applications
- 222
- Assignees
- 181
- Inventors
- 655
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 4 | 7 |
| 2004 | 2 | 1 |
| 2005 | 0 | 3 |
| 2006 | 0 | 4 |
| 2007 | 2 | 2 |
| 2008 | 3 | 4 |
| 2009 | 2 | 5 |
| 2010 | 3 | 11 |
| 2011 | 4 | 3 |
| 2012 | 8 | 9 |
| 2013 | 6 | 9 |
| 2014 | 4 | 9 |
| 2015 | 7 | 23 |
| 2016 | 8 | 4 |
| 2017 | 11 | 16 |
| 2018 | 8 | 15 |
| 2019 | 6 | 15 |
| 2020 | 14 | 16 |
| 2021 | 14 | 9 |
| 2022 | 8 | 11 |
| 2023 | 4 | 10 |
| 2024 | 8 | 13 |
| 2025 | 7 | 10 |
| 2026 | 3 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cell retention device18 Aug 2026US 12,708,876 B2Sunflower Therapeutics, PBC
- Separation matrix and method of separation24 Mar 2026US 12,582,963 B2Cytiva BioProcess R&D AB
- System and method for reducing the dissolved solids of a non-potable aqueous flow17 Feb 2026US 12,551,849 B2
- Forward osmosis membrane and method of preparing same23 Dec 2025US 12,502,644 B2Beijing Baoshengtong International Electric Engineering Technology Co., Ltd.
- Ceramic membrane technology for molecule-range separation16 Dec 2025US 12,496,557 B2Agency for Science, Technology and Research
- Modular multiplatform system for mrna drug production8 Oct 2026US 2026/0306407 A1BioNTech SE
- Fabrication of membranes via combined evaporation and precipitant induced phase separation10 Sep 2026US 2026/0264022 A1Sartorius Stedim Biotech GmbH
- Thermal treatment of ultrafiltration membranes10 Sep 2026US 2026/0264023 A1Sartorius Stedim Biotech GmbH
- Film and Battery Pouch Comprising Same30 Jul 2026US 2026/0221593 A1LG Energy Solution, Ltd.
- Mechanically stable ultrafiltration membrane, and method for producing same28 May 2026US 2026/0145140 A1Sartorius Stedim Biotech GmbH
Most cited
By later US patents
- Multicomponent membranes for gas separations355US 4,230,463 AMonsanto Company · 1980
- Membranes for absorbent packets341US 5,108,383 AAllied-Signal Inc. · 1992
- Paste, which can undergo screen printing for producing a porous polymer membrane for a biosensor154US 6,719,923 B2Inverness Medical Limited · 2004
- Haemodialyzer apparatus139US 4,212,744 AAsahi Medical Co., Ltd. · 1980
- Variable permeability liquid crystalline membranes51US 4,513,034 AMerck & Co., Inc. · 1985