Sheetz; Barry E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sheetz; Barry E..The latest application filed is for "systems and methods to recover value-added materials from gypsum".
- Sheetz; Barry E. - Lemont PA
| Patent | Date |
|---|---|
| Systems and Methods to Recover Value-Added Materials from Gypsum App 20210269321 - Papouchado; Lucien M. ; et al. | 2021-09-02 |
| Treatment of particles for improved performance as proppants Grant 8,193,128 - Hellmann , et al. June 5, 2 | 2012-06-05 |
| Treatment of particles for improved performance as proppants App 20100326657 - Hellmann; John R. ; et al. | 2010-12-30 |
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