ClassID:

68096

B61D7/32 - CPC Classification

Classification description:

Hopper cars; Adaptations of hopper elements to railways Means for assisting charge or discharge

Recent Application in this class:
#1
20260131376
2026-05-14

LOW-SULFUR GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#2
20260054312
2026-02-26

TREATING COOLING WATER IN IRON PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#3
20260048434
2026-02-19

LOW-CARBON GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#4
20260034581
2026-02-05

USE OF RESIDUAL IRON WITHIN GRANULATED METALLIC UNIT PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#5
20260001124
2026-01-01

CONTINUOUS GRANULATED METALLIC UNITS PRODUCTION, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#6
20250353076
2025-11-20

USE OF A BASIC OXYGEN FURNACE TO PRODUCE GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#7
20250083980
2025-03-13

TREATING COOLING WATER IN IRON PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#8
20250083713
2025-03-13

RAILCARS FOR TRANSPORTING GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#9
20250083232
2025-03-13

CONTINUOUS GRANULATED METALLIC UNITS PRODUCTION, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#10
20250083231
2025-03-13

USE OF RESIDUAL IRON WITHIN GRANULATED METALLIC UNIT PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#11
20250083230
2025-03-13

USE OF A BASIC OXYGEN FURNACE TO PRODUCE GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#12
20250083224
2025-03-13

LOW-CARBON GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#13
20250083223
2025-03-13

LOW-SULFUR GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#14
20230192156
2023-06-22

Hopper railcar with door deflector for transverse pivoted outlet gate, door deflector and method of retrofitting hopper railcar to include door deflector for transverse pivoted outlet gate

#15
20230083126
2023-03-16

Open top gondola railcars

#16
20220371628
2022-11-24

COVERED HOPPER RAILCAR

#17
20220332353
2022-10-20

Belly dump trailer with conveyors for moving material

#18
20220234630
2022-07-28

END CAP FOR VACUUM DISCHARGE OUTLET GATE AND METHOD

#19
20220144319
2022-05-12

Automated Hatch System for Hopper Railcars

#20
20220144318
2022-05-12

Direct Drive Automated Hatch System for Hopper Railcars

#21
20200385222
2020-12-10

Railway vehicle and process for moving gravel

#22
20200298895
2020-09-24

HOPPER RAILCAR WITH DOOR DEFLECTOR FOR TRANSVERSE PIVOTED OUTLET GATE, DOOR DEFLECTOR AND METHOD OF RETROFITTING HOPPER RAILCAR TO INCLUDE DOOR DEFLECTOR FOR TRANSVERSE PIVOTED OUTLET GATE

#23
20190210621
2019-07-11

RAILROAD CAR AND DOOR MECHANISM THEREFOR

#24
20170327130
2017-11-16

Engineering vehicle having ballast unloading device and ballast leveling device

#25
20170096778
2017-04-06

Autonomous ballast unloading consist

#26
20160101790
2016-04-14

Railroad car and door mechanism therefor

#27
20160001788
2016-01-07

Baffle

#28
20140360056
2014-12-11

Railcar ballast distributing apparatus

#29
20140271071
2014-09-18

Self-unloading aggregate train

#30
20120237302
2012-09-20

PRESSURE GAUGE ASSEMBLY FOR A RAILCAR AND METHOD OF ASSEMBLING THE SAME

#31
20120199042
2012-08-09

Support system for a railcar and method for assembling the same

#32
20110219981
2011-09-15

Automated railcar gate operating system

#33
20110188983
2011-08-04

Rail car and method for transport of bulk materials

#34
20110185940
2011-08-04

Automated railcar gate operating system

#35
20100251923
2010-10-07

Railroad car and door mechanism therefor

#36
20090302065
2009-12-10

SYSTEM AND DEVICE FOR UNLOADING BULK MATERIALS FROM A HOPPER

#37
20080223252
2008-09-18

Hopper car with lading dislodgement fittings and method of operation

#38
20080003085
2008-01-03

Apparatus and method for vibrating a railcar

#39
20070163462
2007-07-19

Rail car and method for transport of bulk materials

#40
20060198721
2006-09-07

Method and apparatus for unloading hopper cars

#41
20050281643
2005-12-22

Conveyor system for loading hopper cars of dump train and associated methods

#42
15882143
2018-07-24

Method for actuating discharge doors of railroad hopper cars

#43
15807090
2018-03-13

Railroad hopper car with bottom discharge doors having angled seals and actuating assemblies