Van Wyk; Riaan Lingerfelder
Patent Applications and Registrations
Patent applications and USPTO patent grants for Van Wyk; Riaan Lingerfelder.The latest application filed is for "detonator system".
- Van Wyk; Riaan Lingerfelder - Woodmead ZA
- Van Wyk; Riaan Lingerfelder - Sandton ZA
- Van Wyk; Riaan Lingerfelder - Pretoria ZA
| Patent | Date |
|---|---|
| Detonator system Grant 7,946,227 - Koekemoer , et al. May 24, 2 | 2011-05-24 |
| Detonator System App 20100132576 - Koekemoer; Andre ; et al. | 2010-06-03 |
| Power Management Of Blasting Lead-in System App 20090293751 - Van Wyk; Riaan Lingerfelder | 2009-12-03 |
| Power Management Of Blasting Lead-In System App 20080245251 - Van Wyk; Riaan Lingerfelder | 2008-10-09 |
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