Patent Theme
Battery Material Recovery
Processes and apparatus for disassembling spent batteries and recovering valuable materials (e.g., metals, electrolytes, plastics) through mechanical, chemical, or electrochemical methods for reuse or sustainable disposal.
14,063 US filings from 2,549 companies since 2023 · 2023: 2,718 · 2024: 4,087 · 2025: 4,649 · 2026 YTD: 2,609
Batteries & Fuel Cells
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. | 2,124 | 456 | 614 | 681 | 373 | +10.9% |
| 2 | Samsung SDI Co., Ltd. | 1,330 | 113 | 194 | 524 | 499 | +170.1% |
| 3 | Contemporary Amperex Technology Co., Limited | 876 | 215 | 365 | 149 | 147 | -59.2% |
| 4 | SK On Co., Ltd. | 598 | 84 | 132 | 184 | 198 | +39.4% |
| 5 | CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED | 530 | · | 32 | 429 | 69 | +1240.6% |
| 6 | TOYOTA JIDOSHA KABUSHIKI KAISHA | 234 | 42 | 78 | 73 | 41 | -6.4% |
| 7 | Prime Planet Energy & Solutions, Inc. | 202 | 35 | 66 | 66 | 35 | 0.0% |
| 8 | Hyundai Motor Company | 172 | 35 | 41 | 54 | 42 | +31.7% |
| 9 | Kia Corporation | 164 | 30 | 38 | 54 | 42 | +42.1% |
| 10 | GM GLOBAL TECHNOLOGY OPERATIONS LLC | 163 | 24 | 48 | 64 | 27 | +33.3% |
| 11 | GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. | 116 | 30 | 66 | 15 | 5 | -77.3% |
| 12 | HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. | 115 | 28 | 67 | 15 | 5 | -77.6% |
| 13 | Ningde Amperex Technology Limited | 105 | 16 | 25 | 39 | 25 | +56.0% |
| 14 | SK INNOVATION CO., LTD. | 97 | 24 | 26 | 36 | 11 | +38.5% |
| 15 | LG Chem, Ltd. | 96 | 61 | 13 | 13 | 9 | 0.0% |
| 16 | Murata Manufacturing Co., Ltd. | 96 | 25 | 21 | 36 | 14 | +71.4% |
| 17 | Panasonic Intellectual Property Management Co., Ltd. | 81 | 16 | 25 | 26 | 14 | +4.0% |
| 18 | Ford Global Technologies, LLC | 77 | 9 | 22 | 26 | 20 | +18.2% |
| 19 | HUNAN BRUNP EV RECYCLING CO., LTD. | 77 | 24 | 40 | 9 | 4 | -77.5% |
| 20 | HONDA MOTOR CO., LTD. | 75 | 15 | 23 | 31 | 6 | +34.8% |
| 21 | JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED | 65 | 22 | 20 | 17 | 6 | -15.0% |
| 22 | XIAMEN HITHIUM ENERGY STORAGE TECHNOLOGY CO., LTD. | 63 | 7 | 27 | 20 | 9 | -25.9% |
| 23 | ESS Tech, Inc. | 61 | 25 | 27 | 8 | 1 | -70.4% |
| 24 | Daramic, LLC | 60 | 13 | 32 | 12 | 3 | -62.5% |
| 25 | Robert Bosch GmbH | 56 | 11 | 20 | 17 | 8 | -15.0% |