Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325652 | Method, system and stable for phosphate recovery from a waste stream | Christopher Schott, Jorge Ricardo Apolinaro Macedo Bachert Da Cunha, Renata Doroethea Van Der Weijden | 2025-06-10 |
| 11548785 | Process to convert bisulphide to elemental sulphur | Johannes Bernardus Maria KLOK, Annemiek Ter Heijne, Frederikus DE RINK | 2023-01-10 |
| 11339411 | Process to prepare elemental sulphur | Johannes Bernardus Maria KLOK, Annemiek Ter Heijne, Frederikus DE RINK | 2022-05-24 |
| 11279619 | Process to convert a sulphur compound | Johannes Bernardus Maria KLOK, Margo Elzinga, Annemiek Ter Heijne, Johannes Wijnbelt | 2022-03-22 |
| 9725812 | Method for nitrogen recovery from an ammonium comprising fluid and bio-electrochemical system | Philipp Kuntke, Tomas Hubertus Sleutels, Hubertus Victor Marie Hamelers, Machiel Saakes | 2017-08-08 |
| 9105913 | Device and method for performing a biologically catalyzed electrochemical reaction | Mateo Jozef Jacques Mayer, Hubertus Victor Marie Hamelers, David Petrus Bonefatius Theodorus Bernardus Strik | 2015-08-11 |
| 8637171 | Device and method for converting light energy into electrical energy | Hubertus Victor Marie Hamelers, David Petrus Bonefatius Theodorus Bernardus Strik, Jan Snel | 2014-01-28 |
| 8431368 | Method for the enzymatic production of fatty alcohol and/or fatty acid | Hubertus Victor Marie Hamelers, Kirsten Johanna J. Steinbusch | 2013-04-30 |
| 7439047 | Process for producing hydrogen | René Alexander Rozendal | 2008-10-21 |
| 6852305 | Process for the production of hydrogen sulphide from elemental sulphur and use thereof in heavy metal recovery | Henk Dijkman | 2005-02-08 |
| 6656249 | Method for desulphurization of gases | Albert Joseph Hendrik Janssen, Robert Jan Van Bodegraven | 2003-12-02 |
| 6656722 | Process for immobilizing arsenic waste | Renate Ruitenberg | 2003-12-02 |
| 6630071 | Process for the treatment of waste water containing heavy metals | Hendrik Dijkman | 2003-10-07 |
| 6235248 | Apparatus for purifying flue gas containing nitrogen oxides | Hendrik Dijkman, Petrus Leonardus Verbraak, Adrianus Den Hartog | 2001-05-22 |
| 6221652 | Process for biological removal of sulphide | Albert Jozef Hendrik Janssen | 2001-04-24 |
| 6217766 | Sulphur reducing bacterium and its use in biological desulphurization processes | Karl O. Stetter, Harold E. Huber, Henk Dijkman, Johannes Pieter Krol | 2001-04-17 |
| 6156205 | Process for the purification of gases containing hydrogen sulphide | Dimitri Yuri Sorokin, Joannes Gijsbrecht Kuenen, Albert Jozef Hendrik Janssen, Lesley Anna Robertson | 2000-12-05 |
| 6045695 | Biological treatment of spent caustics | Albert Joseph Hendrik Janssen, Gatze Lettinga, Jan Bontsema, Gerrit Van Straten, Johannes Gijsbrecht Kuenen +1 more | 2000-04-04 |
| 6019901 | Process for removing polyamine chelating agents form aqueous solutions | Wiebe Abma | 2000-02-01 |
| 5976868 | Process for the treatment of gases | — | 1999-11-02 |
| 5891408 | Process for purifying flue gas containing nitrogen oxides | Hendrik Dijkman, Petrus Leonardus Verbraak, Adrianus Den Hartog | 1999-04-06 |
| 5637220 | Process for purifying sulphide-containing waste water | — | 1997-06-10 |
| 5518619 | Process for removing sulphur compounds from water | — | 1996-05-21 |
| 5474682 | Method for removing sulphur compounds from water | — | 1995-12-12 |
| 5449460 | Process for the treatment of water containing sulphur compounds | — | 1995-09-12 |