Federico Zardi
27Patents
5h-index
12Co-inventors
66Inventor score
Filing activity: Jul 18, 1995 → Mar 15, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8367867B2 | Process and plant for urea production | Performing Operations; Transporting | 22 | Active |
| US7153344B2 | Process for the preparation and recovery of carbon dioxide from waste gas or fumes produced by combustible oxidation | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6340451B1 | Method for the simultaneous modernization of a plant for ammonia production and a plant for urea production | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5888460A | Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6284922A | Method for modernizing a urea production plant | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6120740A | Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature | Emerging Cross-Sectional Technologies | 5 | Expired |
| US8721975B2 | Plant for urea production | Emerging Cross-Sectional Technologies | 4 | Active |
| US6334984B1 | Hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7982068B2 | Process for urea production and related plant | Chemistry; Metallurgy | 3 | Active |
| US7414130B2 | Integrated process for urea and melamine production | Emerging Cross-Sectional Technologies | 3 | Active |
| US6702992B2 | Method for modernizing a urea production plant | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6827887B2 | Method for obtaining urea prills | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6175040A | Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6444180B1 | Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7091379B2 | Process and plant for the production of urea | Chemistry; Metallurgy | 2 | Expired |
| US7608735B2 | Process for urea production and related plant | Chemistry; Metallurgy | 1 | Active |
| US9463983B2 | Method for load regulation of an ammonia plant | Emerging Cross-Sectional Technologies | 1 | Active |
| US8129565B2 | High-pressure loop in a process for synthesis of urea | Performing Operations; Transporting | 1 | Active |
| US6552224B2 | Process and plant for the production of urea | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8158823B2 | Method for the modernization of a urea production plant | Performing Operations; Transporting | 1 | Active |
| US9708250B2 | Process and plant for ammonia-urea production | Emerging Cross-Sectional Technologies | 0 | Active |
| US7674933B2 | Method for modernizing a urea production plant | Emerging Cross-Sectional Technologies | 0 | Active |
| US7585473B2 | Carbamate condensation unit | Emerging Cross-Sectional Technologies | 0 | Expired |
| US9988345B2 | Process and plant for the production of an aqueous solution comprising urea | Emerging Cross-Sectional Technologies | 0 | Active |
| US8263805B2 | Process and plant for urea production | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.