Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7594590 | Sealing plug for sealing hollow flotation elements for use in a cover of a liquid-filled container | Karl Everhardus Sewalt | 2009-09-29 |
| D583005 | Flotation device | Wim Grymonprez, Joost Vanhecke, Karl Everhardus Sewalt | 2008-12-16 |
| 5409132 | Tablet dispenser | Alfred H. Van Elk | 1995-04-25 |
| 5035860 | Detection strip for detecting and identifying chemical air contaminants, and portable detection kit comprising said strips | Adriaan Kleingeld, Wilhelmus F. Kragtwijk | 1991-07-30 |
| 4607156 | Shock-resistant support structure for use in portable laser scanning heads | Alexander L. E. Koppenaal | 1986-08-19 |