H02J 2101/30
Fuel cells
H02J2101/30 (Fuel cells) appears on 784 US grants and 1,060 published applications in this corpus.
Search patents in H02J- Granted patents
- 784
- Published applications
- 1,060
- Assignees
- 477
- Inventors
- 2,068
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 5 | 12 |
| 2003 | 10 | 18 |
| 2004 | 10 | 23 |
| 2005 | 8 | 31 |
| 2006 | 15 | 35 |
| 2007 | 12 | 26 |
| 2008 | 25 | 31 |
| 2009 | 20 | 37 |
| 2010 | 24 | 34 |
| 2011 | 27 | 36 |
| 2012 | 32 | 50 |
| 2013 | 22 | 54 |
| 2014 | 26 | 40 |
| 2015 | 39 | 56 |
| 2016 | 44 | 54 |
| 2017 | 41 | 63 |
| 2018 | 49 | 45 |
| 2019 | 52 | 37 |
| 2020 | 54 | 49 |
| 2021 | 39 | 37 |
| 2022 | 36 | 65 |
| 2023 | 45 | 71 |
| 2024 | 50 | 51 |
| 2025 | 66 | 56 |
| 2026 | 26 | 48 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power management system6 Oct 2026US 12,756,197 B2Techwin Co., Ltd.
- Power supply system6 Oct 2026US 12,756,330 B2Delta Electronics (Shanghai) Co., Ltd.
- Hybrid flexible energy solution using geothermal and hydrogen for data center applications1 Sep 2026US 12,723,572 B1Microsoft Technology Licensing, LLC
- Resilient medium voltage modular multiport power conversion system1 Sep 2026US 12,726,025 B2DG Matrix, Inc.
- Method of transient-free transformer energization and black start using inverter based resources1 Sep 2026US 12,726,031 B2The Florida State University Research Foundation, Inc.
- Prime location of unipolar electrolysis plants on the electricity grid8 Oct 2026US 2026/0312101 A1
- Long-duration energy storage system1 Oct 2026US 2026/0302784 A1
- Wide area site power and nested energy transmission (wasp net)1 Oct 2026US 2026/0302790 A1Joule Case Inc.
- Electrical Power Generating System1 Oct 2026US 2026/0302793 A1BWR Innovations LLC
- Continuous electrical power source in switched (non-continuous) artificial lighting environments1 Oct 2026US 2026/0302828 A1Wandering Wolf Ventures Ltd.
Most cited
By later US patents
- Method for distributed power harvesting using DC power sources338US 8,013,472 B2Solaredge, Ltd. · 2011
- Power converter285US 7,339,287 B2PowerLynx A/S · 2008
- Systems to connect multiple direct current energy sources to an alternating current system243US 8,058,747 B2Tigo Energy, Inc. · 2011
- Power supply control for power generator234US 7,880,334 B2Ceres Intellectual Property Company Limited · 2011
- Modular hybrid low emissions power for hydrocarbon extraction229US 10,008,880 B2BJ Services Company · 2018