Sietsma; Jan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sietsma; Jan.The latest application filed is for "method for attenuating noise produced by pipes and pipe arrangement".
- Sietsma; Jan - Helmond N/A NL
| Patent | Date |
|---|---|
| Method for attenuating noise produced by pipes and pipe arrangement Grant 9,500,302 - Geerlings , et al. November 22, 2 | 2016-11-22 |
| Method For Attenuating Noise Produced By Pipes And Pipe Arrangement App 20140202548 - Geerlings; Alexander Cornelis ; et al. | 2014-07-24 |
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