Patent assignee · US · COMPANY

Pullman Standard, Inc.

22Patents
0Active
22Granted
32Portfolio score

Filing activity: May 24, 1982 → Sep 8, 1986

Most-cited patents

PatentTitleAreaCited byStatus
US4590864A Single axle truck suspension for railway flat car Performing Operations; Transporting 35 Expired
US4690072A Railway car body structural arrangement Performing Operations; Transporting 32 Expired
US4570816A Hatch cover and locking structure Emerging Cross-Sectional Technologies 31 Expired
US4555033A Slackless non-cushioned drawbar arrangement for railway car underframe Mechanical Engineering; Lighting; Heating 30 Expired
US4633787A Light weight gondola type railway car Emerging Cross-Sectional Technologies 29 Expired
US4738203A Aerodynamically structured railway car with corner, air flow guides Emerging Cross-Sectional Technologies 27 Expired
US4771705A Shear plate structure for gondola car Emerging Cross-Sectional Technologies 25 Expired
US4630547A Cross bearer arrangement for slotted center sill Performing Operations; Transporting 24 Expired
US4569289A Air flow guide structure for open top railway car Emerging Cross-Sectional Technologies 23 Expired
US4630548A Center sill horizontal divider Performing Operations; Transporting 23 Expired
US4573594A Railway car underframe adapted for use with couple or drawbar construction Performing Operations; Transporting 11 Expired
US4630546A Double groove center sill Performing Operations; Transporting 10 Expired
US4508037A Door lever adjusting device for hopper car doors Emerging Cross-Sectional Technologies 9 Expired
US4589346A Axle stop arrangement for single axle wheel truck for a skeleton type railway car Performing Operations; Transporting 5 Expired
US4570807A Railway car underframe Performing Operations; Transporting 3 Expired
US4651650A Axle stabilizer for railway truck Performing Operations; Transporting 3 Expired
US4626154A Trailer hitch with elastomer in shear cushioning Performing Operations; Transporting 3 Expired
US4620487A Aerodynamically structured railway car Emerging Cross-Sectional Technologies 3 Expired
US4557647A Multiplanar support beam for hitch pivot mount Performing Operations; Transporting 2 Expired
US4553642A Brake arrangement for single axle wheel truck of railway car Performing Operations; Transporting 2 Expired
US4573843A Hitch mounting means Performing Operations; Transporting 1 Expired
US4534453A Brake lever assembly for railway car Performing Operations; Transporting 0 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.