Engineered wood-based mulch product
US6729068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Sep 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An engineered wood based soil mulch product is described that is a blend of geometrically regular wood elements. The blend has at least two components that differ by at least one dimension. Element length is within the range of about 50-300 mm with a maximum width of about 30 mm. The product is preferably formed from wood veneer having a maximum thickness of about 7.5 mm. Individual elements may be formed as long strands, as rectangles, other polygons, or with curvilinear edges. Mixtures of elements having differing geometric form are acceptable and in some cases advantageous. The product has the advantages of long life, greater stability over time, and freedom of seeds from any foreign plant species
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.