| FL18429 | La Finestra, LC | Exterior DoorsSwinging Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL18507 | La Finestra, LC | WindowsFixed | Not yetNo 2026 filing found | n/a |
| FL19605 | La Finestra, LC | WindowsCasement | Not yetNo 2026 filing found | n/a |
| FL20400 | La Finestra, LC | WindowsMullions | Not yetNo 2026 filing found | n/a |
| FL21576 | La Finestra, LC | Exterior DoorsSliding Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL21897 | La Finestra, LC | Exterior DoorsSwinging Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL47761 | La Finestra, LC | Exterior DoorsSliding Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL14666 | LaPolla Industries, Inc. | RoofingCements-Adhesives-Coatings | Not yetNo 2026 filing found | n/a |
| FL35394 | Lamboo Technologies | Panel WallsSiding | Not yetNo 2026 filing found | n/a |
| FL17652 | Laminators Inc | Panel WallsSiding | Not yetNo 2026 filing found | n/a |
| FL26345 | Latch, Inc. | Exterior DoorsExterior Door Components | Not yetNo 2026 filing found | n/a |
| FL26347 | Latch, Inc. | Exterior DoorsSwinging Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL15412 | Lawson Industries | WindowsSingle Hung | Not yetNo 2026 filing found | n/a |
| FL15426 | Lawson Industries | WindowsCasement | Not yetNo 2026 filing found | n/a |
| FL15428 | Lawson Industries | WindowsHorizontal Slider | Not yetNo 2026 filing found | n/a |
| FL15429 | Lawson Industries | WindowsFixed | Not yetNo 2026 filing found | n/a |
| FL15441 | Lawson Industries | Exterior DoorsSliding Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL15443 | Lawson Industries | Exterior DoorsSwinging Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL15532 | Lawson Industries | WindowsMullions | Not yetNo 2026 filing found | n/a |
| FL27559 | Lawson Industries | Exterior DoorsSliding Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL39596 | Lawson Industries | Exterior DoorsSwinging Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL42266 | Leadax Americas | RoofingRoofing Accessories that are an Integral Part of the Roofing System | Not yetNo 2026 filing found | n/a |
| FL47773 | Leadax Americas | RoofingWaterproofing | Not yetNo 2026 filing found | n/a |
| FL25658 | Legacy Building Solutions, Inc. | Panel WallsProducts Introduced as a Result of New Technology | Not yetNo 2026 filing found | n/a |
| FL47495 | Lennox Industries | Structural ComponentsProducts Introduced as a Result of New Technology | Not yetNo 2026 filing found | n/a |
| FL41620 | Levi's Building Components LLC | RoofingUnderlayments | Not yetNo 2026 filing found | n/a |
| FL41961 | Levi's Building Components LLC | RoofingUnderlayments | Not yetNo 2026 filing found | n/a |
| FL42168 | Lewis Trading Corp. | RoofingUnderlayments | Not yetNo 2026 filing found | n/a |
| FL16096 | Liberty Plastics, Inc. | RoofingRoofing Accessories that are an Integral Part of the Roofing System | Not yetNo 2026 filing found | n/a |
| FL46617 | Liberty Plastics, Inc. | RoofingRoofing Tiles | Not yetNo 2026 filing found | n/a |
| FL16031 | Lifetime Tool and Building Products, LLC. | RoofingRoofing Accessories that are an Integral Part of the Roofing System | Not yetNo 2026 filing found | n/a |
| FL31164 | Lifetime Tool and Building Products, LLC. | RoofingRoofing Accessories that are an Integral Part of the Roofing System | Not yetNo 2026 filing found | n/a |
| FL42284 | Linea Rossa Windows & Doors | WindowsSingle Hung | Not yetNo 2026 filing found | n/a |
| FL42285 | Linea Rossa Windows & Doors | WindowsHorizontal Slider | Not yetNo 2026 filing found | n/a |
| FL42286 | Linea Rossa Windows & Doors | Exterior DoorsSliding Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL42288 | Linea Rossa Windows & Doors | Exterior DoorsSliding Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL42289 | Linea Rossa Windows & Doors | WindowsCasement | Not yetNo 2026 filing found | n/a |
| FL42290 | Linea Rossa Windows & Doors | WindowsFixed | Not yetNo 2026 filing found | n/a |
| FL42291 | Linea Rossa Windows & Doors | Exterior DoorsSwinging Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL42292 | Linea Rossa Windows & Doors | WindowsFixed | Not yetNo 2026 filing found | n/a |
| FL42293 | Linea Rossa Windows & Doors | Panel WallsCurtain Walls | Not yetNo 2026 filing found | n/a |
| FL42294 | Linea Rossa Windows & Doors | WindowsMullions | Not yetNo 2026 filing found | n/a |
| FL47197 | Lippert Components, Inc | Structural ComponentsWood Connectors | Not yetNo 2026 filing found | n/a |
| FL993 | Lippert Components, Inc. | WindowsSingle Hung | Not yetNo 2026 filing found | n/a |
| FL995 | Lippert Components, Inc. | WindowsFixed | Not yetNo 2026 filing found | n/a |
| FL16170 | Lippert Components, Inc. | Exterior DoorsSwinging Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL16686 | Lippert Components, Inc. | WindowsHorizontal Slider | Not yetNo 2026 filing found | n/a |
| FL31609 | Lippert Components, Inc. | Exterior DoorsSliding Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL44539 | Lippert Components, Inc. | Exterior DoorsSliding Exterior Door Assemblies | Not yetNo 2026 filing found | n/a |
| FL46122 | Lippert Components, Inc. | WindowsFixed | Not yetNo 2026 filing found | n/a |