Controlled release rate fertilizers and methods of making same
US6749659B1 · kind B1 · utility
44Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jun 10, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05D9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fertilizer granule comprises:i) an elemental sulfur and swelling clay matrix, andii) at least one additional fertilizer material incorporated into said matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.