C02F 3/10
Packings
Official title: Packings; Fillings; Grids (packing elements in general B01J19/30, B01J19/32)
C02F3/10 (Packings) appears on 1,173 US grants and 1,035 published applications in this corpus.
Search patents in C02F- Granted patents
- 1,173
- Published applications
- 1,035
- Assignees
- 792
- Inventors
- 2,675
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 10 | 0 |
| 1978 | 17 | 0 |
| 1979 | 8 | 0 |
| 1980 | 10 | 0 |
| 1981 | 9 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 8 | 0 |
| 1985 | 13 | 0 |
| 1986 | 13 | 0 |
| 1987 | 16 | 0 |
| 1988 | 13 | 0 |
| 1989 | 26 | 0 |
| 1990 | 19 | 0 |
| 1991 | 20 | 0 |
| 1992 | 22 | 0 |
| 1993 | 35 | 0 |
| 1994 | 21 | 0 |
| 1995 | 38 | 0 |
| 1996 | 37 | 0 |
| 1997 | 31 | 0 |
| 1998 | 23 | 0 |
| 1999 | 32 | 0 |
| 2000 | 29 | 0 |
| 2001 | 24 | 4 |
| 2002 | 20 | 22 |
| 2003 | 17 | 24 |
| 2004 | 21 | 34 |
| 2005 | 23 | 28 |
| 2006 | 17 | 28 |
| 2007 | 29 | 38 |
| 2008 | 17 | 30 |
| 2009 | 22 | 41 |
| 2010 | 26 | 36 |
| 2011 | 30 | 56 |
| 2012 | 27 | 32 |
| 2013 | 22 | 44 |
| 2014 | 31 | 44 |
| 2015 | 24 | 52 |
| 2016 | 20 | 44 |
| 2017 | 37 | 44 |
| 2018 | 28 | 43 |
| 2019 | 42 | 46 |
| 2020 | 37 | 57 |
| 2021 | 36 | 71 |
| 2022 | 40 | 42 |
| 2023 | 33 | 48 |
| 2024 | 35 | 62 |
| 2025 | 24 | 39 |
| 2026 | 20 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Biofilm reactor having at least one weighted member22 Sep 2026US 12,741,894 B2
- Aerated biological filtration process for water treatment with a view to reducing the nitrogen content (NGL) of said water with reduction of carbon-source and aeration requirements22 Sep 2026US 12,741,895 B2Veolia Water Solutions & Technologies Support
- Efficient nitrogen and phosphorus removal process system for mariculture tail water treatment15 Sep 2026US 12,735,339 B2Tianjin Research Institute for Water Transport Engineering, M.O.T.
- Method and installation for controlled microbiome shift for biomass densification in a biological treatment of a raw influent8 Sep 2026US 12,729,143 B2Newport Corporation
- Porous biochar for improving severe pollution and preparation method therefor4 Aug 2026US 12,698,225 B2Chinese Research Academy of Environmental Sciences
- Operation method of water treatment apparatus and water treatment apparatus8 Oct 2026US 2026/0308031 A1Kubota Corporation
- Media for use in wastewater treatment8 Oct 2026US 2026/0308032 A1Technologies Bionest Inc.
- Systems for catalytically removing per- and polyfluoroalkyl substances from a fluid and related methods1 Oct 2026US 2026/0296939 A1Arizona Board of Regents on behalf of Arizona State University
- Filtering System for a Storm Water Catch Basin17 Sep 2026US 2026/0274709 A1Trash Guard Incorporated
- Waste Water Treatment by the Cleanbox Module6 Aug 2026US 2026/0225930 A1
Most cited
By later US patents
- Ferromagnetic separation process and material265US 3,985,649 A1976
- Crosslinked hydrophilic foams and method131US 4,137,200 AW. R. Grace & Co. · 1979
- Two-stage anaerobic/aerobic treatment process117US 4,919,815 AZimpro/Passavant Inc. · 1990
- Buoyant contact surfaces in waste treatment pond109US 4,169,050 ASolar Aquasystems, Inc. · 1979
- Process and apparatus for removal of organic pollutants from waste water104US 5,217,616 AAllied-Signal Inc. · 1993