Sperian Welding Protection AG
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sperian Welding Protection AG.The latest application filed is for "welding protection mask".
- Sperian Welding Protection AG - Wattwil CH
| Patent | Date |
|---|---|
| Adapter system for coupling a protective mask to a helmet Grant 8,321,962 - Moyses December 4, 2 | 2012-12-04 |
| Welding Protection Mask App 20110023205 - Braendle; Ignaz | 2011-02-03 |
| Adapter System And Adapter For Protective Mask App 20100223707 - Moyses; David | 2010-09-09 |
| Optical Protective Filter And Method For Its Manufacture App 20090051834 - Cottier; Kaspar | 2009-02-26 |
| Electro-optical Glare Protection Filter And Glare Protection Unit For A Portable Glare Protection Device App 20080068521 - Cottier; Kaspar | 2008-03-20 |
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