B01D 59/12
By diffusion through barriers
Official title: by diffusion through barriers
B01D59/12 (By diffusion through barriers) appears on 57 US grants and 31 published applications in this corpus.
Search patents in B01D- Granted patents
- 57
- Published applications
- 31
- Assignees
- 44
- Inventors
- 145
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 2 | 2 |
| 2017 | 0 | 2 |
| 2018 | 2 | 4 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 2 | 2 |
| 2022 | 2 | 4 |
| 2023 | 2 | 2 |
| 2024 | 2 | 1 |
| 2025 | 0 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lithium isotope concentration device, multi-stage lithium isotope concentration device, and lithium isotope concentration method5 May 2026US 12,616,936 B2Hirosaki University
- Hydrogen isotope concentrating apparatus27 Jan 2026US 12,533,634 B2Japan Atomic Energy Agency
- Isotopic compositions II26 Nov 2024US 12,151,207 B2Botanical Water Technologies IP Ltd
- Diffusion window for radioactive heat source6 Feb 2024US 11,894,158 B2Lockheed Martin Corporation
- Modular, disposable 3D printed microfluidic membrane system for separation and purification15 Aug 2023US 11,724,213 B2Lawrence Livermore National Security, LLC
- Lithium isotope enrichment device, multi-stage lithium isotope enrichment device, and lithium isotope enrichment method25 Sep 2025US 2025/0296048 A1Hirosaki University
- Enrichment Method29 Aug 2024US 2024/0286078 A1Cambridge Center for Advanced Research and Education In Singapore Ltd
- Lithium isotope concentration device, multi-stage lithium isotope concentration device, and lithium isotope concentration method17 Aug 2023US 2023/0256390 A1Hirosaki University
- Hydrogen isotope separation systems19 Jan 2023US 2023/0017076 A1Clemson University Research Foundation
- Hydrogen isotope concentrating apparatus15 Sep 2022US 2022/0288532 A1Japan Atomic Energy Agency
Most cited
By later US patents
- Hydrogen permeation membrane92US 4,699,637 AKernforschungsanlage Julich Gesellschaft mit beschrankter Haftung · 1987
- Method for separating gases82US 4,264,338 AMonsanto Company · 1981
- Hydrogen permeatin membrane, process for its manufacture and use66US 4,589,891 AKernforschungsanlage Julich Gesellschaft mit beschrankter Haftung · 1986
- Diffusion membrane and process for separating hydrogen from gas mixture46US 4,496,373 AKernforschungsanlage Julich Gesellschaft mit beschrankter Haftung · 1985
- Ceramic catalytic membrane reactor for the separation of hydrogen and/or isotopes thereof from fluid feeds42US 5,366,712 AENEA-Ente per le Nuove Tecnologie, l'Energia e l'Ambiente · 1994