Patent Theme
Power Systems with Energy Storage & Grid Interaction
Integration of power converters with energy storage devices (batteries, supercapacitors) or grid interfaces, often involving AC/DC conversion, power flow management, and fault handling for hybrid power systems or specific applications like EVs or PV.
10,443 US filings from 2,467 companies since 2023 · 2023: 2,420 · 2024: 3,244 · 2025: 3,315 · 2026 YTD: 1,464
Power Distribution & StoragePower Conversion (DC/AC, DC/DC)
Top companies
Ranked by filings in this theme since 2023. 2026 is partial.
| # | Company | Since 2023 | 2023 | 2024 | 2025 | 2026 YTD | YoY |
|---|
| 1 | TOYOTA JIDOSHA KABUSHIKI KAISHA | 491 | 87 | 136 | 164 | 104 | +20.6% |
| 2 | Huawei Digital Power Technologies Co., Ltd. | 277 | 71 | 85 | 89 | 32 | +4.7% |
| 3 | HONDA MOTOR CO., LTD. | 145 | 44 | 39 | 46 | 16 | +17.9% |
| 4 | Solaredge Technologies Ltd. | 132 | 37 | 48 | 39 | 8 | -18.8% |
| 5 | GM GLOBAL TECHNOLOGY OPERATIONS LLC | 121 | 21 | 44 | 38 | 18 | -13.6% |
| 6 | Mitsubishi Electric Corporation | 120 | 27 | 41 | 39 | 13 | -4.9% |
| 7 | ABB Schweiz AG | 97 | 26 | 36 | 25 | 10 | -30.6% |
| 8 | LG Energy Solution, Ltd. | 89 | 6 | 22 | 45 | 16 | +104.5% |
| 9 | Samsung SDI Co., Ltd. | 81 | 10 | 12 | 29 | 30 | +141.7% |
| 10 | Ford Global Technologies, LLC | 80 | 23 | 27 | 23 | 7 | -14.8% |
| 11 | Kia Corporation | 80 | 17 | 22 | 25 | 16 | +13.6% |
| 12 | Siemens Aktiengesellschaft | 80 | 18 | 28 | 22 | 12 | -21.4% |
| 13 | Hyundai Motor Company | 78 | 17 | 20 | 25 | 16 | +25.0% |
| 14 | Contemporary Amperex Technology Co., Limited | 76 | 12 | 16 | 14 | 34 | -12.5% |
| 15 | HITACHI ENERGY LTD | 76 | · | 29 | 31 | 16 | +6.9% |
| 16 | Hitachi, Ltd. | 75 | 19 | 26 | 17 | 13 | -34.6% |
| 17 | TOYOTA MOTOR NORTH AMERICA, INC. | 72 | 17 | 18 | 26 | 11 | +44.4% |
| 18 | Vestas Wind Systems A/S | 70 | 23 | 22 | 18 | 7 | -18.2% |
| 19 | Caterpillar Inc. | 69 | 5 | 14 | 35 | 15 | +150.0% |
| 20 | Enphase Energy, Inc. | 67 | 20 | 27 | 12 | 8 | -55.6% |
| 21 | 8ME NOVA, LLC | 66 | 40 | 25 | 1 | · | -96.0% |
| 22 | GS Yuasa International Ltd. | 65 | 9 | 24 | 16 | 16 | -33.3% |
| 23 | Panasonic Intellectual Property Management Co., Ltd. | 63 | 7 | 16 | 27 | 13 | +68.8% |
| 24 | DENSO CORPORATION | 62 | 10 | 21 | 22 | 9 | +4.8% |
| 25 | DELTA ELECTRONICS, INC. | 61 | 13 | 15 | 25 | 8 | +66.7% |