Welzen; Leonardus Jacobus Johannes Wilhelmus
Patent Applications and Registrations
Patent applications and USPTO patent grants for Welzen; Leonardus Jacobus Johannes Wilhelmus.The latest application filed is for "method for the manufacturing of a low shrinkage flexible sheet".
- Welzen; Leonardus Jacobus Johannes Wilhelmus - Urmond N/A NL
| Patent | Date |
|---|---|
| Method for the manufacturing of a low shrinkage flexible sheet Grant 9,522,518 - Wienke , et al. December 20, 2 | 2016-12-20 |
| Artificial fibre as well as an artificial lawn for sports fields provided with such fibre Grant 6,815,059 - Slootweg , et al. November 9, 2 | 2004-11-09 |
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