Y02W
Climate change mitigation technologies related to wastewater treatment or waste management
Y02W (Climate change mitigation technologies related to wastewater treatment or waste management) appears on 28,259 US grants and 28,453 published applications in this corpus.
Search patents in Y02W- Granted patents
- 28,259
- Published applications
- 28,453
- Assignees
- 13,680
- Inventors
- 58,503
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 294 | 0 |
| 1977 | 314 | 0 |
| 1978 | 321 | 0 |
| 1979 | 229 | 0 |
| 1980 | 306 | 0 |
| 1981 | 304 | 0 |
| 1982 | 243 | 0 |
| 1983 | 222 | 0 |
| 1984 | 249 | 0 |
| 1985 | 214 | 0 |
| 1986 | 223 | 0 |
| 1987 | 236 | 0 |
| 1988 | 248 | 0 |
| 1989 | 306 | 0 |
| 1990 | 282 | 0 |
| 1991 | 335 | 0 |
| 1992 | 430 | 0 |
| 1993 | 549 | 0 |
| 1994 | 588 | 0 |
| 1995 | 535 | 0 |
| 1996 | 583 | 0 |
| 1997 | 556 | 0 |
| 1998 | 593 | 0 |
| 1999 | 588 | 0 |
| 2000 | 527 | 0 |
| 2001 | 545 | 155 |
| 2002 | 539 | 536 |
| 2003 | 479 | 650 |
| 2004 | 464 | 712 |
| 2005 | 360 | 739 |
| 2006 | 407 | 727 |
| 2007 | 403 | 774 |
| 2008 | 391 | 871 |
| 2009 | 432 | 931 |
| 2010 | 590 | 1004 |
| 2011 | 598 | 1069 |
| 2012 | 650 | 1094 |
| 2013 | 722 | 1108 |
| 2014 | 730 | 1287 |
| 2015 | 789 | 1151 |
| 2016 | 773 | 1162 |
| 2017 | 817 | 1207 |
| 2018 | 856 | 1230 |
| 2019 | 1018 | 1302 |
| 2020 | 1093 | 1427 |
| 2021 | 1017 | 1667 |
| 2022 | 1017 | 1652 |
| 2023 | 1198 | 2117 |
| 2024 | 1208 | 1786 |
| 2025 | 1248 | 1264 |
| 2026 | 640 | 831 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
Recent patents
- Device for influent distribution and thickened sludge fermentation to enhance MSBR system6 Oct 2026US 12,753,100 B2Corstar Environmental Equipment Shanghai Ltd
- Chlorosulfonated polypropylene carbonate, and production method and use thereof6 Oct 2026US 12,753,278 B2Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Application for device evaluation and other processes associated with device recycling6 Oct 2026US 12,755,254 B2ecoATM, LLC
- Credential handling of an IoT safe applet6 Oct 2026US 12,757,025 B2Telefonaktiebolaget LM Ericsson (publ)
- Method for producing a partially recycled polyaryletherketone powder by sintering29 Sep 2026US 12,746,718 B2Arkema France
- Method and apparatus for confining the spread of pollutants spilled into a moving fluid8 Oct 2026US 2026/0308859 A1
- Enhanced Microbial Production of Biosurfactants and Other Products, and Uses Thereof17 Sep 2026US 2026/0273600 A1Locus Solutions Ipco, LLC
- Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials10 Sep 2026US 2026/0264040 A1Circ, LLC
- Classifier for positive electrode active material and method for regenerating lithium precursor by using same10 Sep 2026US 2026/0265070 A1SK Innovation Co., Ltd.
- Biocementation mixture for dust control and related applications10 Sep 2026US 2026/0265130 A1Bind-X International GmbH
Most cited
By later US patents
- Coherent surgical staple array1,715US 4,275,813 AUnited States Surgical Corporation · 1981
- Battery disposal and collection apparatus1,038US 5,651,821 ARicoh Company, Ltd. · 1997
- Complete discharge device for lithium battery1,037US 6,270,916 B1Alcatel · 2001
- Methods and systems for improved dosing of a chemical treatment, such as chlorine dioxide, into a fluid stream, such as a wastewater stream595US 6,949,196 B2Fkos, LLC · 2005
- Liquid waste oxygenation441US 5,463,176 A1995