Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7713416 | Process for transforming sludge into NPK type granulated fertilizer | — | 2010-05-11 |
| 7175683 | Process for transforming sludge into NPK type granulated fertilizer | — | 2007-02-13 |
| 6676917 | Process for the production of hydrochloric acid and neutralized sulfates | — | 2004-01-13 |
| 6585900 | Process for the treatment of sludge | — | 2003-07-01 |
| 6419887 | Process for the treatment of residual liquors from the ammoniation and carbonation of alkali metal salts | — | 2002-07-16 |
| 6398840 | Process for treating sludge | Pedro Orta-Castro | 2002-06-04 |