Wigger; Stefan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wigger; Stefan.The latest application filed is for "boronizing agent in paste form".
- Wigger; Stefan - Hanau DE
| Patent | Date |
|---|---|
| Hardening protection compositions for partial carburization of metallic components Grant 6,964,712 - Wigger , et al. November 15, 2 | 2005-11-15 |
| Boronizing agent in paste form App 20020036030 - Baudis, Ulrich ; et al. | 2002-03-28 |
| Hardening protection compositions for partial carburization of metallic components App 20020020471 - Wigger, Stefan ; et al. | 2002-02-21 |
| Process for recovering the salt constituents from hardening-shop salt baths Grant 5,769,906 - Kremer , et al. June 23, 1 | 1998-06-23 |
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