H02J 15/50
Systems for storing electric energy specially adapted for power networks: using stored
Official title: using stored hydrogen
H02J15/50 (Systems for storing electric energy specially adapted for power networks: using stored) appears on 115 US grants and 228 published applications in this corpus.
Search patents in H02J- Granted patents
- 115
- Published applications
- 228
- Assignees
- 128
- Inventors
- 506
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 3 |
| 2011 | 1 | 3 |
| 2012 | 1 | 3 |
| 2013 | 1 | 5 |
| 2014 | 1 | 4 |
| 2015 | 2 | 3 |
| 2016 | 5 | 1 |
| 2017 | 1 | 3 |
| 2018 | 0 | 1 |
| 2019 | 5 | 3 |
| 2020 | 3 | 7 |
| 2021 | 3 | 14 |
| 2022 | 7 | 25 |
| 2023 | 8 | 33 |
| 2024 | 25 | 51 |
| 2025 | 34 | 38 |
| 2026 | 16 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Renewable energy supply system, floating offshore solar power generating plant, and renewable energy supply method29 Sep 2026US 12,749,896 B2
- Hydrogen station, control unit for hydrogen station, and program for hydrogen station8 Sep 2026US 12,729,446 B2Yazaki Corporation
- Hybrid flexible energy solution using geothermal and hydrogen for data center applications1 Sep 2026US 12,723,572 B1Microsoft Technology Licensing, LLC
- Power control system1 Sep 2026US 12,726,032 B2Fujita Corporation
- Using electrical reservoir stimulation to engineer a geologic battery for long-term energy storage and hydrogen generation18 Aug 2026US 12,709,969 B2Eden GeoPower, Inc.
- Prime location of unipolar electrolysis plants on the electricity grid8 Oct 2026US 2026/0312101 A1
- Energy recovery system and related method of recovering energy10 Sep 2026US 2026/0266267 A1Siemens Energy Global GmbH & Co. KG
- Method and System for Operational Optimization of an Industrial Plant3 Sep 2026US 2026/0261145 A1ABB Schweiz AG
- Energy supply system for coupling to a wind turbine used in island mode, and method for supplying the wind turbine with solar energy27 Aug 2026US 2026/0254396 A1Siemens Energy Global GmbH & Co. KG
- Power-to-hydrogen plant, control unit and control method thereof13 Aug 2026US 2026/0234822 A1Hitachi Energy Ltd
Most cited
By later US patents
- Power supply system and electronic device196US 7,538,451 B2Sony Corporation · 2009
- Energy supply system for optimizing energy cost, energy consumption and emission of pollutants187US 5,432,710 AOsaka Gas Co., Ltd. · 1995
- Method and apparatus for optimization of distributed generation68US 8,019,445 B2Intelligent Generation LLC · 2011
- Systems and methods for sustainable economic development through integrated full spectrum production of renewable energy32US 9,231,267 B2McAlister Technologies, LLC · 2016
- Power dispatch system for electrolytic production of hydrogen from wind power10US 8,288,888 B2Next Hydrogen Corporation · 2012