B01D 61/58
Multistep processes
B01D61/58 (Multistep processes) appears on 818 US grants and 1,216 published applications in this corpus.
Search patents in B01D- Granted patents
- 818
- Published applications
- 1,216
- Assignees
- 695
- Inventors
- 2,588
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 11 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 11 | 3 |
| 2002 | 6 | 15 |
| 2003 | 11 | 7 |
| 2004 | 7 | 20 |
| 2005 | 6 | 21 |
| 2006 | 11 | 16 |
| 2007 | 10 | 21 |
| 2008 | 8 | 17 |
| 2009 | 7 | 11 |
| 2010 | 12 | 21 |
| 2011 | 16 | 33 |
| 2012 | 16 | 40 |
| 2013 | 11 | 50 |
| 2014 | 20 | 37 |
| 2015 | 24 | 55 |
| 2016 | 31 | 47 |
| 2017 | 25 | 76 |
| 2018 | 40 | 71 |
| 2019 | 58 | 69 |
| 2020 | 52 | 100 |
| 2021 | 54 | 79 |
| 2022 | 63 | 80 |
| 2023 | 61 | 83 |
| 2024 | 53 | 92 |
| 2025 | 60 | 86 |
| 2026 | 41 | 66 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Feedstock solution flow concentration system29 Sep 2026US 12,746,511 B2Asahi Kasei Kabushiki Kaisha
- Method and system for reducing volume of raw material liquid15 Sep 2026US 12,734,485 B2Asahi Kasei Kabushiki Kaisha
- Oil-water separation systems and methods of separating aqueous emulsions15 Sep 2026US 12,734,486 B2Aculon, Inc.
- 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.
- Concentrated milk protein preparations8 Oct 2026US 2026/0305634 A150G Inc.
- Systems, Methods, and Apparatuses for Producing and Packaging Medical Fluids8 Oct 2026US 2026/0307835 A1
- Method for producing bioethanol and device for producing bioethanol8 Oct 2026US 2026/0308643 A1ARKHE Co., Ltd.
- Process for the production and separation of 5- hydroxymethylfurfural with quaternary ammonium salts1 Oct 2026US 2026/0297047 A1Novamont S. p. A.
- Cmp slurry reuse optimization system through convergence and complex processing technology17 Sep 2026US 2026/0275160 A1SK hynix Inc.
Most cited
By later US patents
- Hemofiltration and plasmafiltration devices and methods308US 5,919,369 AHemocleanse, Inc. · 1999
- Hemofiltration and plasmafiltration devices and methods214US 5,536,412 AHemocleanse, Inc. · 1996
- Device and method for extracorporeal blood treatment185US 5,277,820 AHemocleanse, Inc. · 1994
- Purification of gases from water using reverse osmosis144US 5,670,053 AZenon Environmental Inc. · 1997
- Haemodialyzer apparatus139US 4,212,744 AAsahi Medical Co., Ltd. · 1980