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Patent applications and USPTO patent grants for STEICHEN; Charles.The latest application filed is for "seal valve for a pci system of a blast furnace".
Patent | Date |
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Seal Valve For A Pci System Of A Blast Furnace App 20220290922 - HUTMACHER; Patrick ;   et al. | 2022-09-15 |
Slide valve Grant 11,306,827 - Steichen , et al. April 19, 2 | 2022-04-19 |
Sealing valve arrangement for a shaft furnace charging installation Grant 11,199,359 - Steichen , et al. December 14, 2 | 2021-12-14 |
Charging System, In Particular For A Shaft Smelt Reduction Furnace App 20200318207 - HUTMACHER; Patrick ;   et al. | 2020-10-08 |
Slide Valve App 20200263794 - Steichen; Charles ;   et al. | 2020-08-20 |
Sealing valve arrangement for a shaft furnace charging installation Grant 10,502,491 - Hutmacher , et al. Dec | 2019-12-10 |
Sealing Valve Arrangement For A Shaft Furnace Charging Installation App 20190277567 - STEICHEN; Charles ;   et al. | 2019-09-12 |
Sealing Valve Arrangement For A Shaft Furnace Charging Installation App 20180266768 - HUTMACHER; Patrick ;   et al. | 2018-09-20 |
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