C02F 2101/103
Arsenic compounds
Official title: {Arsenic compounds}
C02F2101/103 (Arsenic compounds) appears on 589 US grants and 884 published applications in this corpus.
Search patents in C02F- Granted patents
- 589
- Published applications
- 884
- Assignees
- 541
- Inventors
- 1,854
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 5 |
| 2002 | 11 | 15 |
| 2003 | 6 | 17 |
| 2004 | 11 | 26 |
| 2005 | 17 | 41 |
| 2006 | 17 | 41 |
| 2007 | 20 | 31 |
| 2008 | 34 | 54 |
| 2009 | 23 | 24 |
| 2010 | 18 | 38 |
| 2011 | 22 | 37 |
| 2012 | 16 | 36 |
| 2013 | 17 | 26 |
| 2014 | 22 | 41 |
| 2015 | 16 | 39 |
| 2016 | 23 | 46 |
| 2017 | 28 | 50 |
| 2018 | 29 | 47 |
| 2019 | 35 | 50 |
| 2020 | 31 | 39 |
| 2021 | 26 | 31 |
| 2022 | 31 | 42 |
| 2023 | 23 | 28 |
| 2024 | 23 | 31 |
| 2025 | 24 | 26 |
| 2026 | 11 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anoxic bioreactor treatment followed by pH adjusted peroxide/iron treatment for enhanced, efficient selenium removal in wastewaters25 Aug 2026US 12,715,802 B2Evoqua Water Technologies LLC
- Azo-linked organic polymers for carbon dioxide capture and metal ion removal14 Jul 2026US 12,678,769 B2King Fahd University of Petroleum and Minerals
- Membrane comprising biopolymers and carbon nanomaterials for removing heavy metals in polluted waters2 Jun 2026US 12,643,088 B2Universidad TéCnica Federico Santa MaríA
- Composite material and method for removing pollutant from polluted water19 May 2026US 12,629,653 B2Beijing University of Chemical Technology
- Production of silicate solutions and their uses19 May 2026US 12,630,433 B2Total Alchemy Solutions, LLC
- Photothermal polymeric aerogels for wastewater detoxification and water recycling8 Oct 2026US 2026/0308020 A1University of Kentucky Research Foundation
- Solid formulations for neutralizing acidic tailings ponds and methods of neutralizing acidic tailings ponds27 Aug 2026US 2026/0250165 A1
- Composite material for remedying soils with contamination of heavy metals and method therefor20 Aug 2026US 2026/0241363 A1Beijing University of Chemical Technology
- Carbon nanomaterial-based water purification system13 Aug 2026US 2026/0234031 A1King Fahd University of Petroleum and Minerals
- Coagulant compositions and methods of use6 Aug 2026US 2026/0225932 A1Locus Solutions Ipco, LLC
Most cited
By later US patents
- Membrane based fluid treatment systems110US 7,186,344 B2Water Visions International, Inc. · 2007
- Purification of fluids with nanomaterials104US 7,211,320 B1Seldon Technologies, LLC · 2007
- Method of treating fluids93US 4,642,192 A1987
- Nanomesh article and method of using the same for purifying fluids88US 7,419,601 B2Seldon Technologies, LLC · 2008
- Filter and sorbent for removal of contaminants from a fluid83US 7,378,372 B2Layne Christensen Company · 2008