Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8617282 | Method of preparing keratin fertilizer with an additive of humic acids in colloid form and keratin fertilizer with humic acids additive | {hacek over (S)}tefan Szoeke, Róbert Vysoký | 2013-12-31 |
| 8500841 | Method of preparing keratin fertilizer with an additive of humic acids in colloid form and keratin fertilizer with humic acids additive | {hacek over (S)}tefan Szöke, Róbert Vysoký | 2013-08-06 |