Extended-release urea-based granular fertilizer
US7862642B2 · kind B2 · utility
2Cited by
63References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2006 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Jul 22, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05C9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved granular-type urea fertilizer having an extended or slow release nitrogen component in which a non-thermosetting urea-formaldehyde resin concentrate is used to provide the granular fertilizer with an extended-release nitrogen component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.