Patent Theme
Microparticle & Lint Management
Systems and methods for filtering microplastics, lint, and other foreign particulates from water or air streams within laundry appliances, often including self-cleaning or blockage detection mechanisms.
7,931 US filings from 2,126 companies since 2023 · 2023: 1,990 · 2024: 2,526 · 2025: 2,339 · 2026 YTD: 1,076
Laundry / Dry Cleaning
Top companies
Ranked by filings in this theme since 2023. 2026 is partial.
| # | Company | Since 2023 | 2023 | 2024 | 2025 | 2026 YTD | YoY |
|---|
| 1 | LG ELECTRONICS INC. | 883 | 188 | 297 | 294 | 104 | -1.0% |
| 2 | SAMSUNG ELECTRONICS CO., LTD. | 438 | 96 | 130 | 155 | 57 | +19.2% |
| 3 | Whirlpool Corporation | 382 | 139 | 122 | 73 | 48 | -40.2% |
| 4 | Haier US Appliance Solutions, Inc. | 322 | 68 | 90 | 109 | 55 | +21.1% |
| 5 | Donaldson Company, Inc. | 245 | 67 | 88 | 72 | 18 | -18.2% |
| 6 | MANN+HUMMEL GmbH | 141 | 32 | 48 | 37 | 24 | -22.9% |
| 7 | HAIER SMART HOME CO., LTD. | 95 | 20 | 34 | 29 | 12 | -14.7% |
| 8 | Cummins Filtration IP, Inc. | 58 | 22 | 24 | 12 | · | -50.0% |
| 9 | CORNING INCORPORATED | 51 | 13 | 20 | 12 | 6 | -40.0% |
| 10 | ELECTROLUX APPLIANCES AKTIEBOLAG | 51 | 10 | 19 | 19 | 3 | 0.0% |
| 11 | NGK INSULATORS, LTD. | 49 | 12 | 14 | 12 | 11 | -14.3% |
| 12 | Hollingsworth & Vose Company | 43 | 13 | 14 | 12 | 4 | -14.3% |
| 13 | Monotony.ai, Inc. | 42 | 8 | 18 | 12 | 4 | -33.3% |
| 14 | Caterpillar Inc. | 41 | 13 | 11 | 9 | 8 | -18.2% |
| 15 | K&N Engineering, Inc. | 41 | 10 | 9 | 18 | 4 | +100.0% |
| 16 | Cummins Filtration Inc. | 39 | 13 | 11 | 11 | 4 | 0.0% |
| 17 | COWAY Co., Ltd. | 37 | 7 | 10 | 15 | 5 | +50.0% |
| 18 | 3M Innovative Properties Company | 36 | 11 | 10 | 12 | 3 | +20.0% |
| 19 | QINGDAO HAIER WASHING MACHINE CO., LTD. | 35 | 8 | 11 | 11 | 5 | 0.0% |
| 20 | Wuxi Little Swan Electric Co., Ltd. | 34 | 3 | 9 | 16 | 6 | +77.8% |
| 21 | ENTEGRIS, INC. | 33 | 10 | 17 | 2 | 4 | -88.2% |
| 22 | HAMILTON SUNDSTRAND CORPORATION | 31 | 4 | 14 | 10 | 3 | -28.6% |
| 23 | MIDEA GROUP CO., LTD. | 30 | 12 | 8 | 6 | 4 | -25.0% |
| 24 | DelStar Technologies, Inc. | 26 | 9 | 2 | 7 | 8 | +250.0% |
| 25 | KX Technologies LLC | 25 | 7 | 14 | 4 | · | -71.4% |