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Patent applications and USPTO patent grants for Dohle; Helmut.The latest application filed is for "adjustable charging hole closure for charging the coking oven chambers of a coking oven battery".
Patent | Date |
---|---|
Adjustable charging hole closure for charging the coking oven chambers of a coking oven battery Grant 9,505,983 - Friedrichs , et al. November 29, 2 | 2016-11-29 |
Adjustable Charging Hole Closure For Charging The Coking Oven Chambers Of A Coking Oven Battery App 20130313101 - Friedrichs; Manfred ;   et al. | 2013-11-28 |
Wall protector for a heating wall head between two oven chamber openings of a coke oven battery Grant 8,529,734 - Kochanski , et al. September 10, 2 | 2013-09-10 |
Wall Protector For A Heating Wall Head Between Two Oven Chamber Openings Of A Coke Oven Battery App 20110048919 - Kochanski; Ulrich ;   et al. | 2011-03-03 |
Coke oven battery Grant 4,564,420 - Spindeler , et al. January 14, 1 | 1986-01-14 |
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