B01D 2256/18
Noble gases
B01D2256/18 (Noble gases) appears on 288 US grants and 268 published applications in this corpus.
Search patents in B01D- Granted patents
- 288
- Published applications
- 268
- Assignees
- 174
- Inventors
- 777
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 10 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 1 |
| 2002 | 8 | 4 |
| 2003 | 4 | 2 |
| 2004 | 2 | 6 |
| 2005 | 5 | 9 |
| 2006 | 1 | 6 |
| 2007 | 7 | 3 |
| 2008 | 3 | 4 |
| 2009 | 4 | 10 |
| 2010 | 5 | 8 |
| 2011 | 1 | 3 |
| 2012 | 5 | 10 |
| 2013 | 5 | 9 |
| 2014 | 10 | 12 |
| 2015 | 3 | 14 |
| 2016 | 12 | 18 |
| 2017 | 20 | 21 |
| 2018 | 15 | 14 |
| 2019 | 11 | 19 |
| 2020 | 16 | 17 |
| 2021 | 8 | 13 |
| 2022 | 9 | 19 |
| 2023 | 11 | 13 |
| 2024 | 14 | 10 |
| 2025 | 16 | 12 |
| 2026 | 2 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Organosilica membranes, methods of making same, and uses thereof11 Aug 2026US 12,702,957 B2The Research Foundation for The State University of New York
- Fluid separation membranes and use thereof7 Jul 2026US 12,673,298 B1Semicom Dwc-LLC
- Particle repelling arrangement25 Nov 2025US 12,478,980 B1Lunar Helium-3 Mining, LLC
- Electrostatic filtration arrangement7 Oct 2025US 12,434,251 B1Lunar Helium-3 Mining, LLC
- Separation of krypton gas from xenon gas using natural clinoptilolite23 Sep 2025US 12,421,115 B1National Technology & Engineering Solutions of Sandia, LLC
- Integration of fuel cell system and co2 capture unit for hydrogen production8 Oct 2026US 2026/0312105 A1Uop LLC
- Mixed gas separation device and mixed gas separation method27 Aug 2026US 2026/0250130 A1L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitaion des Procédés Georges Claude
- Norbornyl benzocyclobutene ladder polymer composite membranes for fluid separation6 Aug 2026US 2026/0225046 A1Osmoses Inc.
- Process for producing very high purity helium or hydrogen30 Jul 2026US 2026/0217533 A1Air Liquide Advanced Technologies U.S. LLC
- Kiln exhaust gas regeneration apparatus and system, and kiln system16 Jul 2026US 2026/0199824 A1TDK Corporation
Most cited
By later US patents
- Process for purifying a gas by adsorption of the impurities on several active carbons147US 6,402,813 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2002
- Process for separating components of a gas stream137US 4,701,187 AAir Products and Chemicals, Inc. · 1987
- Extraction and concentration of a gas component117US 5,082,473 A1992
- Process for the separation/recovery of gases114US 6,179,900 B2GKSS-Forschungszentrum Geesthacht GmbH · 2001
- Pressure swing adsorption for concentration of a gas component102US 4,968,329 A1990