Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7407532 | Process for separating NH3 , and optionally also CO2 and H2O, from a mixture containing NH3 , CO2 and H2O | Andreas J. Biermans, Johannes Henricus Mennen, Nora Anna De Wit, Herbert Willem Gerrit Hooijkaas, Bastiaan Renè Agnes Marie Van De Kerkhove | 2008-08-05 |
| 6921838 | Process for the preparation of urea | Jozef Hubert Meessen | 2005-07-26 |
| 6881862 | Process for the preparation of urea | Jozef Hubert Meessen | 2005-04-19 |
| 6858755 | Process for the preparation of urea | Jozef Hubert Meessen | 2005-02-22 |
| 6855846 | Process for the preparation of urea | Andreas J. Biermans | 2005-02-15 |
| 6392096 | Process for the preparation of urea | Johannes Henricus Mennen | 2002-05-21 |
| 6165315 | Reactor for the synthesis of urea | Hendrik F. Perree | 2000-12-26 |
| 6118023 | Method for increasing the capacity of an existing urea process | Hendrik F. Perree | 2000-09-12 |
| 5767313 | Method for the preparation of urea | — | 1998-06-16 |
| 4866207 | Process for concentrating an urea solution by evaporation | Henk C. Burks | 1989-09-12 |
| 4801747 | Process for preparing urea | — | 1989-01-31 |
| 4540813 | Process for the preparation of urea | Petrus J. M. van Nassau, Andreas J. Biermans, Mario G. R. T. de Cooker | 1985-09-10 |
| 4539077 | Process for the preparation of urea | Petrus J. M. van Nassau, Andreas J. Biermans | 1985-09-03 |
| 4456535 | Process for the removal of urea, ammonia, and carbon dioxide from dilute aqueous solutions | Jan Zuidam, Petrus J. M. van Nassau, Pierre G. M. B. Bruls | 1984-06-26 |