Patent Theme
Lithium Compound Synthesis for Batteries
Methods for synthesizing high-purity lithium compounds, such as lithium carbonate, lithium sulfide, or composite salts, specifically optimized for use in battery electrodes or electrolytes.
9,275 US filings from 1,943 companies since 2023 · 2023: 2,066 · 2024: 3,022 · 2025: 2,882 · 2026 YTD: 1,305
Non-metallic Inorganic Compounds
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. | 759 | 159 | 280 | 230 | 90 | -17.9% |
| 2 | Samsung SDI Co., Ltd. | 303 | 65 | 96 | 91 | 51 | -5.2% |
| 3 | TOYOTA JIDOSHA KABUSHIKI KAISHA | 260 | 52 | 88 | 83 | 37 | -5.7% |
| 4 | Panasonic Intellectual Property Management Co., Ltd. | 235 | 45 | 87 | 68 | 35 | -21.8% |
| 5 | SK On Co., Ltd. | 191 | 40 | 57 | 50 | 44 | -12.3% |
| 6 | GM GLOBAL TECHNOLOGY OPERATIONS LLC | 174 | 37 | 43 | 71 | 23 | +65.1% |
| 7 | LG Chem, Ltd. | 138 | 44 | 42 | 34 | 18 | -19.0% |
| 8 | Hyundai Motor Company | 131 | 39 | 31 | 39 | 22 | +25.8% |
| 9 | GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. | 130 | 21 | 74 | 27 | 8 | -63.5% |
| 10 | HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. | 127 | 20 | 73 | 27 | 7 | -63.0% |
| 11 | Kia Corporation | 126 | 35 | 30 | 39 | 22 | +30.0% |
| 12 | SAMSUNG ELECTRONICS CO., LTD. | 125 | 41 | 44 | 33 | 7 | -25.0% |
| 13 | SUMITOMO METAL MINING CO., LTD. | 117 | 28 | 37 | 28 | 24 | -24.3% |
| 14 | Contemporary Amperex Technology Co., Limited | 113 | 28 | 55 | 15 | 15 | -72.7% |
| 15 | HUNAN BRUNP EV RECYCLING CO., LTD. | 87 | 19 | 45 | 17 | 6 | -62.2% |
| 16 | Umicore | 85 | 20 | 18 | 38 | 9 | +111.1% |
| 17 | Enevate Corporation | 82 | 32 | 28 | 13 | 9 | -53.6% |
| 18 | SK INNOVATION CO., LTD. | 82 | 18 | 25 | 25 | 14 | 0.0% |
| 19 | BASF SE | 80 | 24 | 20 | 26 | 10 | +30.0% |
| 20 | UCHICAGO ARGONNE, LLC | 78 | 23 | 24 | 21 | 10 | -12.5% |
| 21 | HONDA MOTOR CO., LTD. | 73 | 16 | 24 | 24 | 9 | 0.0% |
| 22 | Idemitsu Kosan Co., Ltd. | 71 | 15 | 23 | 23 | 10 | 0.0% |
| 23 | CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED | 70 | · | 5 | 53 | 12 | +960.0% |
| 24 | The Regents of the University of California | 68 | 14 | 18 | 26 | 10 | +44.4% |
| 25 | Murata Manufacturing Co., Ltd. | 60 | 11 | 29 | 15 | 5 | -48.3% |