C01B 21/0416
By oxidation
Official title: {by oxidation}
C01B21/0416 (By oxidation) appears on 14 US grants and 7 published applications in this corpus.
Search patents in C01B- Granted patents
- 14
- Published applications
- 7
- Assignees
- 12
- Inventors
- 36
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for obtaining high purity nitrogen in nitrogen gas purification applications and a method thereof17 Feb 2026US 12,552,669 B2Mikropor Makina Sana Yi Ve Ticaret Anonim Sirketi
- CLC process and installation with the production of high purity nitrogen28 Apr 2020US 10,632,440 B2Ifp Energies Nouvelles
- Removal of hydrogen and carbon monoxide impurities from gas streams27 Jan 2015US 8,940,263 B2Air Products and Chemicals, Inc.
- Gas purifying process and device3 Dec 2013US 8,597,584 B2Taiyo Nippon Sanso Corporation
- Gas purifying process and device29 Jun 2010US 7,744,836 B2Taiyo Nippon Sanso Corporation
- A system for obtaining high purity nitrogen in nitrogen gas purification applications and a method thereof20 Jul 2023US 2023/0227310 A1Mikropor Makina Sanayi Ve Ticaret Anonim Sirketi
- Clc process and installation with the production of high purity nitrogen26 Jul 2018US 2018/0207601 A1Ifp Energies Nouvelles
- Removal Of Hydrogen And Carbon Monoxide Impurities From Gas Streams16 Oct 2014US 2014/0308176 A1Air Products and Chemicals, Inc.
- Gas purifying process and device30 Sep 2010US 2010/0247395 A1Taiyo Nippon Sanso Corporation
- Gas Purifying Process and Device27 Jul 2006US 2006/0165573 A1Taiyo Nippon Sanso Corporation
Most cited
By later US patents
- Inert gas purifying system38US 5,454,923 ACeramatec, Inc. · 1995
- Removal of hydrogen and carbon monoxide impurities from gas streams12US 8,940,263 B2Air Products and Chemicals, Inc. · 2015
- Process for the removal of an impurity contained in a composite gas9US 5,693,302 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1997
- Production of endothermic gases with methanol8US 4,859,434 AAir Products and Chemicals, Inc. · 1989
- Process for the purification of inert gases7US 5,547,652 ASinco Engineering S.p.A. · 1996