C01B 13/00
Oxygen
Official title: Oxygen; Ozone; Oxides or hydroxides in general
C01B13/00 (Oxygen) appears on 3,859 US grants and 3,465 published applications in this corpus.
Search patents in C01B- Granted patents
- 3,859
- Published applications
- 3,465
- Assignees
- 1,927
- Inventors
- 8,035
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 36 | 0 |
| 1977 | 46 | 0 |
| 1978 | 35 | 0 |
| 1979 | 25 | 0 |
| 1980 | 19 | 0 |
| 1981 | 28 | 0 |
| 1982 | 29 | 0 |
| 1983 | 20 | 0 |
| 1984 | 21 | 0 |
| 1985 | 23 | 0 |
| 1986 | 30 | 0 |
| 1987 | 45 | 0 |
| 1988 | 39 | 0 |
| 1989 | 56 | 0 |
| 1990 | 44 | 0 |
| 1991 | 63 | 0 |
| 1992 | 74 | 0 |
| 1993 | 62 | 0 |
| 1994 | 61 | 0 |
| 1995 | 80 | 0 |
| 1996 | 80 | 0 |
| 1997 | 77 | 0 |
| 1998 | 100 | 0 |
| 1999 | 118 | 0 |
| 2000 | 115 | 0 |
| 2001 | 113 | 37 |
| 2002 | 110 | 165 |
| 2003 | 120 | 162 |
| 2004 | 106 | 169 |
| 2005 | 94 | 165 |
| 2006 | 96 | 215 |
| 2007 | 76 | 163 |
| 2008 | 89 | 162 |
| 2009 | 102 | 161 |
| 2010 | 107 | 186 |
| 2011 | 107 | 153 |
| 2012 | 104 | 143 |
| 2013 | 125 | 158 |
| 2014 | 102 | 149 |
| 2015 | 140 | 109 |
| 2016 | 112 | 121 |
| 2017 | 90 | 129 |
| 2018 | 101 | 140 |
| 2019 | 105 | 129 |
| 2020 | 116 | 128 |
| 2021 | 90 | 108 |
| 2022 | 96 | 108 |
| 2023 | 68 | 84 |
| 2024 | 51 | 96 |
| 2025 | 76 | 79 |
| 2026 | 37 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for optimizing consumption of the operating resources of ozone generators8 Sep 2026US 12,729,450 B2ProMinent GmbH
- Oxygen transport membrane reactors for decarbonization25 Aug 2026US 12,715,765 B2Praxair Technology, Inc.
- Data processing device and gas conversion system25 Aug 2026US 12,715,825 B2Kabushiki Kaisha Toshiba
- Apparatus and method for isolating hydrogen from water11 Aug 2026US 12,703,628 B2Rtx Corporation
- Device for ionization of a fluid11 Aug 2026US 12,706,268 B2Brairtech Sweden AB
- Hydrogen and oxygen generation using detonation waves1 Oct 2026US 2026/0296883 A1Green Constellation Inc.
- An ozone generator comprising cooling means for generating ozone, a method for generating ozone from an oxygen rich gas and use of the generator1 Oct 2026US 2026/0296886 A1Water Aps
- Ozone-Based DUV Laser Power Attenuation24 Sep 2026US 2026/0291161 A1KLA Corporation
- Combination carbon monoxide and nitrogen dioxide scrubber treatment and process17 Sep 2026US 2026/0273461 A1
- Ozone supply system and ozone supply method17 Sep 2026US 2026/0274666 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Systems and methods for thin-film deposition of metal oxides using excited nitrogen—oxygen species549US 8,883,270 B2ASM America, Inc. · 2014
- Systems and methods for thin-film deposition of metal oxides using excited nitrogen-oxygen species543US 8,802,201 B2ASM America, Inc. · 2014
- method of powering corona discharge in ozone generators528US 5,130,003 A1992
- Ozone generator with in-line ozone sensor515US 5,540,898 AVasogen, Inc. · 1996
- Electrochemical production of ozone and hydrogen peroxide465US 5,972,196 ALynntech, Inc. · 1999