C07C 45/786
By membrane separation process
Official title: {by membrane separation process, e.g. pervaporation, perstraction, reverse osmosis}
C07C45/786 (By membrane separation process) appears on 95 US grants and 39 published applications in this corpus.
Search patents in C07C- Granted patents
- 95
- Published applications
- 39
- Assignees
- 41
- Inventors
- 180
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 3 | 4 |
| 2017 | 2 | 0 |
| 2018 | 3 | 0 |
| 2019 | 1 | 5 |
| 2020 | 5 | 3 |
| 2021 | 2 | 2 |
| 2022 | 3 | 3 |
| 2023 | 5 | 3 |
| 2024 | 0 | 4 |
| 2025 | 0 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optimized thermal separation by prior gas exchange5 Dec 2023US 11,834,399 B2Evonik Operations GmbH
- Process for preparing aldehydes and cooling a stream of matter21 Nov 2023US 11,820,739 B2Evonik Operations GmbH
- Process for preparing aldehydes and cooling a stream of matter3 Oct 2023US 11,773,041 B2Evonik Operations GmbH
- Coated porous polymeric membranes22 Aug 2023US 11,731,085 B2Entegris, Inc.
- Process for preparing methacrolein from formaldehyde and propionaldehyde and preparation plant for the purpose20 Jun 2023US 11,680,033 B2Rohm Co., Ltd.
- Process and system for dehydrating a product stream in ethanol production10 Sep 2026US 2026/0263961 A1Whitefox Technologies Limited
- Thermolytic fragmentation of sugars22 Jan 2026US 2026/0022088 A1Topsoe A/S
- Method for obtaining acetoin25 Sep 2025US 2025/0296907 A1
- Processes for recovering rhodium from hydroformylation processes1 May 2025US 2025/0137091 A1Dow Technology Investments LLC
- Process for hydroformylation of diisobutene and a c4 to c7 olefin23 Jan 2025US 2025/0026704 A1Evonik Oxeno GmbH
Most cited
By later US patents
- Programmable manifold system for automatic fluid delivery151US 5,562,614 AAdvanced Cardiovascular Systems, Inc. · 1996
- Separation process using pervaporation and dephlegmation80US 6,755,975 B2Membrane Technology and Research, Inc. · 2004
- Method for dehydration and concentration of aqueous solution containing organic compound64US 4,978,430 AUbe Industries, Ltd. · 1990
- Separation procedure37US 3,950,247 AMonsanto Company · 1976
- Membrane separation process35US 5,681,473 AUnion Carbide Chemicals & Plastics Technology Corporation · 1997