C02F 1/448
By pervaporation
Official title: {by pervaporation}
C02F1/448 (By pervaporation) appears on 80 US grants and 108 published applications in this corpus.
Search patents in C02F- Granted patents
- 80
- Published applications
- 108
- Assignees
- 90
- Inventors
- 282
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 1 |
| 2004 | 3 | 3 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 2 | 0 |
| 2009 | 3 | 2 |
| 2010 | 1 | 4 |
| 2011 | 0 | 5 |
| 2012 | 1 | 3 |
| 2013 | 3 | 0 |
| 2014 | 4 | 5 |
| 2015 | 2 | 7 |
| 2016 | 3 | 3 |
| 2017 | 5 | 5 |
| 2018 | 3 | 6 |
| 2019 | 4 | 6 |
| 2020 | 5 | 10 |
| 2021 | 3 | 4 |
| 2022 | 6 | 10 |
| 2023 | 5 | 10 |
| 2024 | 6 | 5 |
| 2025 | 5 | 5 |
| 2026 | 2 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for reclaiming solvent2 Jun 2026US 12,643,071 B2Donaldson Company, Inc.
- Solvent drying solution and processes therfor17 Mar 2026US 12,577,185 B2Aquafortus Technologies Limited
- Systems and methods for removing or reducing water in mixtures that include t-butyl hydroperoxide7 Oct 2025US 12,435,052 B2Lyondell Chemical Technology, L,P.
- Systems and methods for measuring composition of water30 Sep 2025US 12,429,467 B2Evoqua Water Technologies LLC
- High salinity water purification processes and systems utilizing pervaporization1 Jul 2025US 12,344,538 B2
- Method for predicting wastewater treatment performance10 Sep 2026US 2026/0265083 A1Korea Advanced Institute of Science and Technology
- Zwitterion anti-scaling membrane coatings9 Jul 2026US 2026/0192259 A1Arizona Board of Regents on behalf of Arizona State University
- Organosilica membrane with porous intermediate layer and method for preparing the same21 May 2026US 2026/0138095 A1Changzhou University
- System and method of purification and separation of solids in liquids by means of aqueous films21 May 2026US 2026/0138893 A1
- A Tunable Apparatus for the Removal of Moisture from a Moisture-Containing Media26 Mar 2026US 2026/0084983 A1change:WATER Labs Inc.
Most cited
By later US patents
- Methods to de-sulfate saline streams107US 7,789,159 B12010
- Method for the purification of a liquid by membrane distillation, in particular for the production of desalinated water from seawater or brackish water or process water95US 6,716,355 B1Nederlands Organisatie voor Toegepast-Natuurwetenshappelijk Onderzoek TNO · 2004
- Thermoelectric integrated membrane evaporation system52US 4,316,774 AUnited Technologies Corporation · 1982
- Methods to produce sulfate-free saline water and gypsum46US 7,392,848 B12008
- Membrane-assisted fluid separation apparatus and method46US 7,459,084 B2Petro Sep International Ltd. · 2008