Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12221398 | Spray nozzle for producing a urea-sulfur fertilizer | Matthias Potthoff, Harald Franzrahe, Thomas Johner | 2025-02-11 |
| 10752559 | Urea-containing fertilizers and process for production thereof | Matthias Potthoff, Thomas Krawczyk, Harald Franzrahe | 2020-08-25 |
| 10632435 | Fluidized bed granulation | Jaap Voorhans, André Kayaert | 2020-04-28 |
| 10544064 | Fluidized bed granulation | Jaap Voorhans, André Kayaert | 2020-01-28 |
| 10106469 | Urea composition and method for producing same | Thomas Krawczyk, Matthias Potthoff, Erik Alexander Bijpost, Alexander Maslow | 2018-10-23 |
| 9745256 | Urea granulation process with scrubbing system | Matthias Potthoff, Harald Franzrahe | 2017-08-29 |
| 9527104 | Method and device for processing of granules | Francois Ledoux, Howard Volke, Peter de Bakker, Remco de Fouw, Roeland Elderson | 2016-12-27 |
| 9493407 | Urea granulation process with scrubbing system | Matthias Potthoff, Harald Franzrahe | 2016-11-15 |
| 9199265 | Method and device for processing of granules | Francois Ledoux, Howard Volke, Peter de Bakker, Remco de Fouw, Roeland Elderson | 2015-12-01 |
| 9149763 | Method for reducing the visible downwind detached plume opacity | Harald Franzrahe, Matthias Potthoff | 2015-10-06 |
| 8945271 | Method for producing urea fertilizer with low moisture absorption tendencies | Paul Niehues, Harald Franzrahe, Matthias Potthoff | 2015-02-03 |
| 8343891 | Method of improving the properties of urea granules | Erik Alexander Bijpost, Jacobus Gerardus Korver, Ruud Van Belzen | 2013-01-01 |
| 8084642 | Method of improving the crushing strength, impact resistance and compressibility of urea, and urea composition | Erik Alexander Bijpost, John van der Hoeven, Ruud Van Belzen | 2011-12-27 |
| 7824565 | Urea composition having reduced compressibility, cake formation and dust formation, and process for its preparation | Ruud Van Belzen, Erik Alexander Bijpost, John van der Hoeven | 2010-11-02 |
| 7816561 | Method of improving the crushing strength and reducing the dust formation and the caking tendency of urea, and urea composition | Ruud Van Belzen | 2010-10-19 |
| 7704420 | Spraying device and method for fluidised bed granulation | Rob Stevens, Roeland Elderson | 2010-04-27 |
| 6851558 | Method and a device for processing a solution, melt, suspension, emulsion, slurry or solids into granules | Rune Ingels, Rudy Nevejans, Roeland Elderson, Jon Gunstein Klonteig | 2005-02-08 |
| 4943308 | Method of producing fertilizer granules containing urea and ammonium sulphate | Walter Cardon | 1990-07-24 |
| 4525198 | Process for the production of urea granules | Willy H. P. Van Hijfte | 1985-06-25 |
| 4500336 | Process for making granules containing urea as the main component | Willy H. P. Van Hijfte | 1985-02-19 |
| 4478632 | Process for making granules containing urea as the main component | Willy H. P. Van Hijfte | 1984-10-23 |