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Patent applications and USPTO patent grants for Douglas; Peter J..The latest application filed is for "bottom outlet valve removable independent steam jacket".
Patent | Date |
---|---|
Disengaging handle assembly for a bottom outlet valve Grant 9,746,873 - Thompson , et al. August 29, 2 | 2017-08-29 |
Bottom outlet valve removable independent steam jacket Grant 9,714,719 - Douglas , et al. July 25, 2 | 2017-07-25 |
Bottom Outlet Valve Removable Independent Steam Jacket App 20170089479 - Douglas; Peter J. ;   et al. | 2017-03-30 |
Railroad Tank Car Manway Assembly App 20170088149 - Douglas; Peter J. ;   et al. | 2017-03-30 |
Railroad tank car manway assembly Grant 9,499,178 - Douglas , et al. November 22, 2 | 2016-11-22 |
Railroad Tank Car Manway Assembly App 20160152246 - Douglas; Peter J. ;   et al. | 2016-06-02 |
Railroad tank car manway assembly Grant 9,260,118 - Douglas , et al. February 16, 2 | 2016-02-16 |
Railroad Tank Car Manway Assembly App 20150083022 - Douglas; Peter J. ;   et al. | 2015-03-26 |
Railroad tank car manway assembly Grant 8,899,161 - Douglas , et al. December 2, 2 | 2014-12-02 |
Railroad Tank Car Manway Assembly App 20130008340 - DOUGLAS; PETER J. ;   et al. | 2013-01-10 |
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