C02F 2303/02
Odour removal or prevention of malodour
C02F2303/02 (Odour removal or prevention of malodour) appears on 498 US grants and 711 published applications in this corpus.
Search patents in C02F- Granted patents
- 498
- Published applications
- 711
- Assignees
- 445
- Inventors
- 1,363
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 2 |
| 2002 | 3 | 6 |
| 2003 | 4 | 8 |
| 2004 | 10 | 18 |
| 2005 | 8 | 16 |
| 2006 | 6 | 16 |
| 2007 | 11 | 17 |
| 2008 | 15 | 22 |
| 2009 | 12 | 24 |
| 2010 | 13 | 22 |
| 2011 | 16 | 30 |
| 2012 | 18 | 29 |
| 2013 | 20 | 25 |
| 2014 | 16 | 23 |
| 2015 | 13 | 34 |
| 2016 | 22 | 43 |
| 2017 | 31 | 40 |
| 2018 | 25 | 40 |
| 2019 | 32 | 36 |
| 2020 | 35 | 28 |
| 2021 | 27 | 47 |
| 2022 | 42 | 52 |
| 2023 | 23 | 33 |
| 2024 | 31 | 40 |
| 2025 | 38 | 37 |
| 2026 | 12 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems, methods, and compounds for sustainable wastewater treatment and co-products thereof8 Sep 2026US 12,729,144 B2
- Filter cartridge and filter having same25 Aug 2026US 12,714,954 B2Solventum Intellectual Properties Company
- Microorganism deodorizing device and deodorization treatment system18 Aug 2026US 12,708,873 B2Miraie Corporation
- Ozone-generating apparatus21 Jul 2026US 12,688,990 B2Metawater Co., Ltd.
- Automated liquid dispensing device23 Jun 2026US 12,660,794 B2Automated Pet Care Products, LLC
- Automated liquid dispensing device8 Oct 2026US 2026/0305569 A1Automated Pet Care Products, LLC d/b/a WHISKER
- A water treatment cartridge1 Oct 2026US 2026/0296943 A1HCL Technologies Limited
- Energy-saving disinfection- and oxidation system for water treatment10 Sep 2026US 2026/0265094 A1Mercaform Holding GmbH
- A system for cleansing a fluid pathway of a fluid dispensing assembly20 Aug 2026US 2026/0242202 A1Zip Heaters (Aust) Pty Ltd
- Water purification system20 Aug 2026US 2026/0242267 A1ZRO Waste Water, Inc.
Most cited
By later US patents
- Method of treating fluids56US 5,122,274 AKDF Fluid Treatment, Inc. · 1992
- System for electrocatalytic treatment of waste water streams55US 4,179,347 AOmnipure, Inc. · 1979
- Method for reducing H2S contamination41US 6,960,330 B12005
- Process for removal of dissolved hydrogen sulfide and reduction of sewage BOD in sewer or other waste systems36US 4,911,843 ADavis Water & Waste Industries, Inc. · 1990
- Method of treating sludge containing fibrous material36US 5,557,873 APCL/SMI, A Joint Venture · 1996