Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9469921 | Artificial grass fibre and artificial lawn comprising such a fibre | Frederik Jan Van Der Gaag | 2016-10-18 |
| 8568852 | Artificial grass turf and infill for sports fields | Gerardus Hubertus Smit, Geurt Bastiaan Slootweg, Frederik Jan Van Der Gaag, Francois Antoine Marie Op Den Buijsch, Wilhelmus Gerardus Marie Bruls +2 more | 2013-10-29 |
| 8551602 | Sport-technical layer for use in an artificial lawn system, as well as such an artificial lawn system | Klim Geraedts, Franciscus Kokkeler, Adrianus Lambertus Antonius Mulders | 2013-10-08 |
| 8465813 | Artificial lawn for artificial grass sports field | Geurt Bastiaan Slootweg, Frederik Jan Van Der Gaag | 2013-06-18 |
| 8283016 | Artificial grass fibre and artificial lawn thereof | Geurt Bastiaan Slootweg, Frederik Jan Van Der Gaag | 2012-10-09 |
| 8182886 | Composite artificial grass and method for manufacturing same | Frank Pfeiffer, Frederik Jan Van Der Gaag, Hermannus Hendrik Jager | 2012-05-22 |
| 7290436 | Device for measuring the static and/or dynamic friction coefficient of a surface | Gerben Christiaan Bierma, Hendrik Hazenberg, Ingo Wynand Witbreuk | 2007-11-06 |
| 6962073 | Method and device for determining the values of stiffness and dampening of surfaces | Edward Hage, Wynand Witbreuk, Geurt Bastiaan Slootweg | 2005-11-08 |
| 6854316 | Device for measuring the static and/or dynamic friction coefficient of an artificial grass lawn for sports fields | Edward Hage, Geurt Bastiaan Slootweg | 2005-02-15 |