loadpatents
Patent applications and USPTO patent grants for Early; Stephen R.The latest application filed is for "hopper car gate with multiple openings".
Patent | Date |
---|---|
Hopper car gate with multiple openings Grant 10,315,668 - Early | 2019-06-11 |
Hopper Car Gate With Multiple Openings App 20180194372 - Early; Stephen R. | 2018-07-12 |
Hatch cover mounted latch for a railcar Grant 9,725,100 - Early August 8, 2 | 2017-08-08 |
Hatch Cover Mounted Latch For A Railcar App 20160167680 - EARLY; STEPHEN R. | 2016-06-16 |
Automatic hopper car gate opening and closing system Grant 9,358,988 - Early June 7, 2 | 2016-06-07 |
Railcar hatch cover assembly Grant 9,073,557 - Early July 7, 2 | 2015-07-07 |
Railcar Hatch Cover Assembly App 20150175175 - EARLY; STEPHEN R. | 2015-06-25 |
Automatic Hopper Car Gate Opening And Closing System App 20150166079 - EARLY; STEPHEN R. | 2015-06-18 |
Hopper car gate assembly with a door having vertically spaced sections Grant 8,850,991 - Early , et al. October 7, 2 | 2014-10-07 |
Hopper Car Gate Assembly with a Door Having Vertically Spaced Sections App 20130233199 - Early; Stephen R. ;   et al. | 2013-09-12 |
Vacuum and gravity discharge hopper car gate Grant 8,371,235 - Early February 12, 2 | 2013-02-12 |
Hopper car gate with a curved door Grant 7,819,067 - Early October 26, 2 | 2010-10-26 |
Hopper car gate with a laterally opening door Grant 7,814,842 - Early October 19, 2 | 2010-10-19 |
Hopper car gate with opposed double doors Grant 7,806,057 - Early October 5, 2 | 2010-10-05 |
Hopper car gate with enlarged discharge and increased capacity Grant 7,752,979 - Early July 13, 2 | 2010-07-13 |
Hopper Car Gate with a Laterally Opening Door App 20100107924 - Early; Stephen R. | 2010-05-06 |
Hopper car gate with a curved door App 20090235840 - Early; Stephen R. | 2009-09-24 |
Hopper car gate with enlarged discharge and increased capacity App 20090090269 - Early; Stephen R. | 2009-04-09 |
Hopper car having double-curved side walls App 20090090268 - Early; Stephen R. | 2009-04-09 |
Hopper car gate with opposed double doors App 20090007813 - Early; Stephen R. | 2009-01-08 |
Railway hopper car discharge gate Grant 7,367,271 - Early May 6, 2 | 2008-05-06 |
Drive system for a railway hopper car discharge gate Grant 7,171,907 - Early February 6, 2 | 2007-02-06 |
Drive system for a railway hopper car discharge gate App 20050263031 - Early, Stephen R. | 2005-12-01 |
Railway hopper car discharge gate App 20050166788 - Early, Stephen R. | 2005-08-04 |
Web core structural panel Grant 6,412,251 - Early July 2, 2 | 2002-07-02 |
Structural panel system Grant 6,374,750 - Early April 23, 2 | 2002-04-23 |
Vented hatch cover Grant 6,085,664 - Early July 11, 2 | 2000-07-11 |
Retractable handrail for railroad cars Grant 5,921,531 - Early July 13, 1 | 1999-07-13 |
Railcar hatch cover Grant 5,572,932 - Early November 12, 1 | 1996-11-12 |
Railroad car hatch cover system Grant 5,517,925 - Early May 21, 1 | 1996-05-21 |
Battenless railcar hatch cover assembly Grant 5,355,808 - Early October 18, 1 | 1994-10-18 |
Boxcar door having balsa core sandwich construction Grant 5,016,395 - Walker , et al. May 21, 1 | 1991-05-21 |
Rhodium capped gold IC metallization Grant 4,687,552 - Early , et al. August 18, 1 | 1987-08-18 |
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