Y02E 10/20
Hydro energy
Y02E10/20 (Hydro energy) appears on 3,201 US grants and 3,364 published applications in this corpus.
Search patents in Y02E- Granted patents
- 3,201
- Published applications
- 3,364
- Assignees
- 1,335
- Inventors
- 5,755
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 33 | 0 |
| 1977 | 36 | 0 |
| 1978 | 33 | 0 |
| 1979 | 34 | 0 |
| 1980 | 47 | 0 |
| 1981 | 60 | 0 |
| 1982 | 40 | 0 |
| 1983 | 44 | 0 |
| 1984 | 49 | 0 |
| 1985 | 35 | 0 |
| 1986 | 37 | 0 |
| 1987 | 38 | 0 |
| 1988 | 42 | 0 |
| 1989 | 23 | 0 |
| 1990 | 20 | 0 |
| 1991 | 18 | 0 |
| 1992 | 19 | 0 |
| 1993 | 19 | 0 |
| 1994 | 15 | 0 |
| 1995 | 29 | 0 |
| 1996 | 18 | 0 |
| 1997 | 20 | 0 |
| 1998 | 19 | 0 |
| 1999 | 37 | 0 |
| 2000 | 33 | 0 |
| 2001 | 37 | 4 |
| 2002 | 22 | 34 |
| 2003 | 34 | 32 |
| 2004 | 32 | 51 |
| 2005 | 33 | 92 |
| 2006 | 56 | 81 |
| 2007 | 45 | 77 |
| 2008 | 53 | 117 |
| 2009 | 42 | 138 |
| 2010 | 84 | 233 |
| 2011 | 103 | 241 |
| 2012 | 124 | 219 |
| 2013 | 150 | 241 |
| 2014 | 178 | 230 |
| 2015 | 134 | 221 |
| 2016 | 140 | 175 |
| 2017 | 187 | 175 |
| 2018 | 124 | 193 |
| 2019 | 168 | 159 |
| 2020 | 149 | 149 |
| 2021 | 125 | 133 |
| 2022 | 93 | 95 |
| 2023 | 87 | 109 |
| 2024 | 87 | 77 |
| 2025 | 80 | 64 |
| 2026 | 36 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Energy harvesting system and method for converting mechanical energy into electrical energy8 Sep 2026US 12,728,684 B1
- Method for determining regulation range of pumping power of three-machine pumped storage unit11 Aug 2026US 12,704,439 B2China Three Gorges Corporation
- Mechanical renewable green energy production7 Jul 2026US 12,674,503 B2Phos Global Energy Solutions, Inc.
- System apparatus and method suitable for capturing water energy30 Jun 2026US 12,667,816 B2Katz Water Tech, LLC
- Grouting double-locking pressure real-time sensing system and method for operating the same16 Jun 2026US 12,655,597 B2SAFEKEY Engineering Technology (Zhengzhou), Ltd.
- Underwater anchoring devices, systems, and methods24 Sep 2026US 2026/0285446 A1Verterra Energy Inc.
- Hydrokinetic turbine system27 Aug 2026US 2026/0251114 A1Emrgy Inc.
- Mortar lining wall thickness design method and device, and pipe repairing method and device27 Aug 2026US 2026/0252748 A1China Three Gorges Corporation
- Triaxial stress simulation method for water storage roadways in abandoned mine pumped storage20 Aug 2026US 2026/0243166 A1Guizhou University
- System, Method and Apparatus for Generating Electric Power from Subsurface Wells23 Jul 2026US 2026/0210211 A1
Most cited
By later US patents
- Energy conversion systems and methods405US 10,060,473 B2Oceana Energy Company · 2018
- Fluid powered electrical generator260US 4,720,640 ATurboStar, Inc. · 1988
- River turbine145US 3,986,787 A1976
- Hydro-air storage electrical generation system141US 3,939,356 AGeneral Public Utilities Corporation · 1976
- Pipeline built-in electric power generating set139US 4,740,711 AFuji Electric Co., Ltd. · 1988