B01J 39/18
Macromolecular compounds
Official title: Macromolecular compounds (B01J39/17 takes precedence)
B01J39/18 (Macromolecular compounds) appears on 644 US grants and 727 published applications in this corpus.
Search patents in B01J- Granted patents
- 644
- Published applications
- 727
- Assignees
- 420
- Inventors
- 1,808
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 9 | 0 |
| 1980 | 10 | 0 |
| 1981 | 14 | 0 |
| 1982 | 6 | 0 |
| 1983 | 12 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 10 | 7 |
| 2002 | 7 | 11 |
| 2003 | 11 | 9 |
| 2004 | 10 | 14 |
| 2005 | 6 | 15 |
| 2006 | 13 | 12 |
| 2007 | 6 | 10 |
| 2008 | 4 | 10 |
| 2009 | 4 | 8 |
| 2010 | 8 | 13 |
| 2011 | 3 | 16 |
| 2012 | 6 | 32 |
| 2013 | 14 | 32 |
| 2014 | 19 | 34 |
| 2015 | 22 | 38 |
| 2016 | 32 | 50 |
| 2017 | 37 | 78 |
| 2018 | 48 | 49 |
| 2019 | 46 | 56 |
| 2020 | 46 | 40 |
| 2021 | 33 | 43 |
| 2022 | 22 | 25 |
| 2023 | 33 | 34 |
| 2024 | 23 | 35 |
| 2025 | 16 | 27 |
| 2026 | 9 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cation exchange membrane and method for producing same1 Sep 2026US 12,722,125 B2Astom Corporation
- Resin for removing phosphorus from water body, and preparation method therefor and application thereof25 Aug 2026US 12,715,791 B2Sunresin New Materials Co. Ltd.
- Continuous ion exchange processes for separating rare earth elements16 Jun 2026US 12,655,499 B2
- Compounds, compositions and polymer films19 May 2026US 12,630,502 B2FUJIFILM Corporation
- Bipolar membrane10 Mar 2026US 12,569,812 B2Astom Corporation
- Novel materials and methods for refining processes17 Sep 2026US 2026/0273436 A1Lihme Protein Solutions ApS
- Filler for ion exchange chromatography, method for producing same, and method for measuring hemoglobin component3 Sep 2026US 2026/0257216 A1Sekisui Medical Co., Ltd.
- Process for recovery of lithium from brine3 Sep 2026US 2026/0257931 A1Aquatech International Corporation
- Ion permeable membrane20 Aug 2026US 2026/0242230 A1Idemitsu Kosan Co., Ltd.
- Method for manufacturing lithium hydroxide6 Aug 2026US 2026/0225905 A1Kemco
Most cited
By later US patents
- Affinity matrices of modified polysaccharide supports427US 5,059,654 ACuno Incorporated · 1991
- Ion exchange/chelation resins containing dense star polymers having ion exchange or chelate capabilities214US 4,871,779 AThe Dow Chemical Company · 1989
- Polymerization processes and products therefrom125US 4,224,415 ARohm and Haas Company · 1980
- Process for preparing macroreticular resins, copolymers and products of said process123US 4,382,124 ARohm and Haas Company · 1983
- Modified dense star polymers118US 4,857,599 AThe Dow Chemical Company · 1989