C01B 2201/66
Pretreatment of the feed
C01B2201/66 (Pretreatment of the feed) appears on 31 US grants and 12 published applications in this corpus.
Search patents in C01B- Granted patents
- 31
- Published applications
- 12
- Assignees
- 18
- Inventors
- 60
- Latest grant
- 15 Jun 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Cold plasma ozone generator15 Jun 2021US 11,034,582 B2Aquallence Ltd. Israel
- Method and system of ozone generation12 May 2020US 10,647,574 B2DM ECO Plasma, Inc.
- Nitrogen-free ozone generation unit and ozone gas supply system30 Jun 2015US 9,067,789 B2Toshiba Mitsubishi-Electric Industrial Systems Corporation
- Exhaust gas purification device5 May 2015US 9,021,792 B2Hino Motors, Ltd.
- Method of generating ozone21 May 2013US 8,444,831 B2Toshiba Mitsubishi-Electric Industrial Systems Corporation
- Ozone generating apparatus and ozone generating method7 Jan 2021US 2021/0001264 A1Sumitomo Precision Products Co., Ltd.
- Method and system of ozone generation18 Jul 2019US 2019/0218096 A1DM ECO Plasma, Inc.
- Cold plasma ozone generator18 Oct 2018US 2018/0297844 A1Aquallence Ltd. Israel
- Nitrogen-free ozone generation unit and ozone gas supply system30 Jan 2014US 2014/0030152 A1Toshiba Mitsubishi-Electric Industrial Systems Corporation
- Exhaust gas purification device2 Jan 2014US 2014/0000246 A1Hino Motors, Ltd.
Most cited
By later US patents
- Ozone apparatus48US 4,816,229 AAmerican Ozone Technology · 1989
- Method and apparatus for producing ozone by corona discharge44US 5,516,493 A1996
- Method and apparatus for generating ozone by corona discharge37US 4,877,588 ATrineos · 1989
- Water ozonation method36US 4,352,740 ALinde Aktiengesellschaft · 1982
- Portable integrated ozone generator36US 5,503,808 AOzact, Inc. · 1996