Knopke; Harry Joseph
Patent Applications and Registrations
Patent applications and USPTO patent grants for Knopke; Harry Joseph.The latest application filed is for "water filter cartridge".
- Knopke; Harry Joseph - Grand Rapids MI
| Patent | Date |
|---|---|
| Water Filter Cartridge App 20210323839 - Knopke; Harry Joseph ; et al. | 2021-10-21 |
| Water filter cartridge Grant 11,053,137 - Knopke , et al. July 6, 2 | 2021-07-06 |
| 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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