C07C 67/56
By solid-liquid treatment
Official title: by solid-liquid treatment; by chemisorption
C07C67/56 (By solid-liquid treatment) appears on 238 US grants and 240 published applications in this corpus.
Search patents in C07C- Granted patents
- 238
- Published applications
- 240
- Assignees
- 193
- Inventors
- 793
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 1 |
| 2003 | 7 | 3 |
| 2004 | 3 | 11 |
| 2005 | 0 | 8 |
| 2006 | 7 | 5 |
| 2007 | 3 | 7 |
| 2008 | 6 | 6 |
| 2009 | 3 | 10 |
| 2010 | 5 | 9 |
| 2011 | 4 | 8 |
| 2012 | 8 | 4 |
| 2013 | 7 | 5 |
| 2014 | 7 | 3 |
| 2015 | 6 | 13 |
| 2016 | 7 | 15 |
| 2017 | 7 | 15 |
| 2018 | 13 | 12 |
| 2019 | 7 | 15 |
| 2020 | 19 | 16 |
| 2021 | 14 | 7 |
| 2022 | 8 | 14 |
| 2023 | 5 | 11 |
| 2024 | 9 | 17 |
| 2025 | 12 | 14 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition and method for preparing the same14 Jul 2026US 12,679,797 B2Industrial Technology Research Institute
- Method for manufacturing a recycled material composition7 Jul 2026US 12,674,037 B2SK Chemicals Co., Ltd.
- Method for producing polyester resin by using regenerated bis(2-hydroxyethyl) terephthalate aqueous solution23 Jun 2026US 12,662,585 B2SK Chemicals Co., Ltd.
- Industrial method for simultaneously preparing Stevia rebaudiana chlorogenic acid and stevioside9 Jun 2026US 12,649,758 B2Chenguang Biotech Group Co., Ltd.
- Method for producing bis-2-hydroxyethyl terephthalate through continuous depolymerization12 May 2026US 12,624,188 B2SK Chemicals Co., Ltd.
- Compositions of and methods of making ultra-pure tricaprilin3 Sep 2026US 2026/0257983 A1Cerecin Australia Pty Limited
- Continuous process for crystallizing bis (2-hydroxyethyl) terephthalate and crystallizer used therein23 Jul 2026US 2026/0209162 A1Chempet Srl
- Corrosion metal removal from ethyl acetate production process9 Jul 2026US 2026/0193162 A1Sahara International Petrochemical Company (Sipchem)
- Method for the extraction and transformation, by alcoholysis and hydrolysis, of phthalates contained in pvc plastics9 Jul 2026US 2026/0193435 A1Ifp Energies Nouvelles
- Preparation method and use of low-polarity chenopodium quinoa saponin monomer18 Jun 2026US 2026/0167599 A1Shandong Second Medical University
Most cited
By later US patents
- Method to produce highly pure eicosapentaenoic acid or its ester176US 5,840,944 ANippon Suisan Kaisha, Ltd. · 1998
- Processes of selectively separating and purifying eicosapentaenoic and docoshexaenoic acids or their esters123US 6,313,330 B1Nisshin Pharma Inc. · 2001
- Integrate chemical processes for industrial utilization of seed oils66US 7,576,227 B2Union Carbide Chemicals & Plastics Technology Corporation · 2009
- Process for separating an ester of a monoethanoid fatty acid54US 4,048,205 AUop LLC · 1977
- Method to obtain methylene malonate via bis(hydroxymethyl) malonate pathway54US 9,108,914 B1Sirrus, Inc. · 2015