McDonald; Robert Ramsey
Patent Applications and Registrations
Patent applications and USPTO patent grants for McDonald; Robert Ramsey.The latest application filed is for "manifold 3-stage water filtration system with heavy metals removal".
- McDonald; Robert Ramsey - Holland MI US
| Patent | Date |
|---|---|
| Manifold 3-stage water filtration system with heavy metals removal Grant 10,829,400 - McDonald , et al. November 10, 2 | 2020-11-10 |
| Manifold 3-stage Water Filtration System With Heavy Metals Removal App 20180050945 - McDonald; Robert Ramsey ; et al. | 2018-02-22 |
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