Patent Theme
Advanced Supercapacitor Electrodes
Involves the development of novel materials and porous structures for the electrodes of supercapacitors and other electrochemical energy storage devices, aiming for high charge density, improved performance, and flexibility.
7,151 US filings from 1,610 companies since 2023 · 2023: 1,615 · 2024: 2,246 · 2025: 2,285 · 2026 YTD: 1,005
Capacitors
Top companies
Ranked by filings in this theme since 2023. 2026 is partial.
| # | Company | Since 2023 | 2023 | 2024 | 2025 | 2026 YTD | YoY |
|---|
| 1 | LG Energy Solution, Ltd. | 439 | 86 | 144 | 138 | 71 | -4.2% |
| 2 | Ningde Amperex Technology Limited | 332 | 53 | 112 | 122 | 45 | +8.9% |
| 3 | Panasonic Intellectual Property Management Co., Ltd. | 313 | 57 | 93 | 116 | 47 | +24.7% |
| 4 | TOYOTA JIDOSHA KABUSHIKI KAISHA | 266 | 40 | 96 | 74 | 56 | -22.9% |
| 5 | Samsung SDI Co., Ltd. | 259 | 22 | 39 | 111 | 87 | +184.6% |
| 6 | Contemporary Amperex Technology Co., Limited | 195 | 61 | 87 | 29 | 18 | -66.7% |
| 7 | Hyundai Motor Company | 162 | 33 | 56 | 42 | 31 | -25.0% |
| 8 | Kia Corporation | 147 | 25 | 51 | 40 | 31 | -21.6% |
| 9 | CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED | 144 | · | 5 | 122 | 17 | +2340.0% |
| 10 | Prime Planet Energy & Solutions, Inc. | 124 | 16 | 35 | 41 | 32 | +17.1% |
| 11 | SK On Co., Ltd. | 103 | 23 | 25 | 35 | 20 | +40.0% |
| 12 | Imam Abdulrahman Bin Faisal University | 83 | 14 | 37 | 24 | 8 | -35.1% |
| 13 | GS Yuasa International Ltd. | 82 | 22 | 29 | 21 | 10 | -27.6% |
| 14 | Murata Manufacturing Co., Ltd. | 81 | 21 | 28 | 19 | 13 | -32.1% |
| 15 | LG Chem, Ltd. | 78 | 22 | 25 | 15 | 16 | -40.0% |
| 16 | Semiconductor Energy Laboratory Co., Ltd. | 65 | 18 | 21 | 23 | 3 | +9.5% |
| 17 | KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS | 55 | 3 | 32 | 16 | 4 | -50.0% |
| 18 | NIPPON CHEMI-CON CORPORATION | 47 | 10 | 14 | 16 | 7 | +14.3% |
| 19 | The Regents of the University of California | 47 | 13 | 17 | 14 | 3 | -17.6% |
| 20 | 24M Technologies, Inc. | 46 | 7 | 17 | 19 | 3 | +11.8% |
| 21 | Group14 Technologies, Inc. | 45 | 19 | 16 | 5 | 5 | -68.8% |
| 22 | Robert Bosch GmbH | 45 | 15 | 9 | 11 | 10 | +22.2% |
| 23 | Tesla, Inc. | 45 | 7 | 11 | 18 | 9 | +63.6% |
| 24 | SAMSUNG ELECTRONICS CO., LTD. | 42 | 16 | 11 | 14 | 1 | +27.3% |
| 25 | XIAMEN HITHIUM ENERGY STORAGE TECHNOLOGY CO., LTD. | 40 | 4 | 21 | 13 | 2 | -38.1% |