C01B 2201/74
By liquid
Official title: by liquid
C01B2201/74 (By liquid) appears on 110 US grants and 62 published applications in this corpus.
Search patents in C01B- Granted patents
- 110
- Published applications
- 62
- Assignees
- 61
- Inventors
- 225
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 1 | 3 |
| 2003 | 3 | 3 |
| 2004 | 1 | 4 |
| 2005 | 4 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 2 | 4 |
| 2011 | 2 | 0 |
| 2012 | 1 | 3 |
| 2013 | 2 | 2 |
| 2014 | 1 | 5 |
| 2015 | 5 | 3 |
| 2016 | 6 | 4 |
| 2017 | 2 | 3 |
| 2018 | 1 | 2 |
| 2019 | 4 | 4 |
| 2020 | 3 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 3 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ozoniser and method for producing ozone from oxygen19 May 2026US 12,630,423 B2ProMinent GmbH
- Plate-type ozone generator and system for generating ozone2 Dec 2025US 12,490,369 B2Arrow Lake AB
- Low frequency ozone generator24 Jun 2025US 12,338,122 B2Primozone Production AB
- Apparatus for highly efficient cold-plasma ozone production9 Jan 2024US 11,866,326 B2
- Ozone generating machine with electrical closed cabinet cooled by closed loop4 Jul 2023US 11,691,876 B2Suez Groupe
- Segmented and maintainable ozone generator23 Jul 2026US 2026/0208145 A1Xylem Europe GmbH
- Discharge cell for ozone generation and ozone gas generation apparatus25 Jun 2026US 2026/0176139 A1Sumitomo Precision Products Co., Ltd.
- Low frequency ozone generator23 Apr 2026US 2026/0109601 A1Primozone Production AB
- Plate-type ozone generator and system for generating ozone12 Dec 2024US 2024/0414832 A1Arrow Lake AB
- Method for optimizing consumption of the operating resources of ozone generators22 Jun 2023US 2023/0193491 A1ProMinent GmbH
Most cited
By later US patents
- Method for producing an ozone gas and apparatus for producing the same59US 4,614,573 A1986
- Ozone generating system58US 4,049,552 AOregon Patent Development Company · 1977
- Ozone generator and method of producing ozone55US 6,193,852 B1The BOC Group, Inc. · 2001
- Ozone and other reactive gas generator cell and system49US 5,637,279 AApplied Science and Technology, Inc. · 1997
- Ozone apparatus48US 4,816,229 AAmerican Ozone Technology · 1989