Inventor

Donald B. Yates

Inventor

Homewood, IL, US

Overview

8→

Patents

1978–1999

Patent span

Performing operations

Primary field (CPC B)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B61Fprimary

B61FRail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles23%

B61HBrakes or other retarding devices specially adapted for rail vehicles23%

B61DBody details or kinds of railway vehicles15%

A47CChairs8%

B61GCouplings8%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers8%

F16JPistons8%

Y10TTechnical subjects covered by former us classification8%

PatentTitleYear

5,944,379'Portable spectator seat for use on stadium benches'1999 4,881,470'Gondola car having frameless radial truck'1989 4,750,431'Offset side bearing structure for well car'1988 4,570,816'Hatch cover and locking structure'1986 4,553,642'Brake arrangement for single axle wheel truck of railway car'1985 4,534,453'Brake lever assembly for railway car'1985 4,194,595'Dead lever anchoring means for railway car brake rigging'1980 4,084,515'Locking mechanism for hopper door actuator assembly'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1980Patents assigned to PULLMAN INC (2)· patent assignee history

1978Based in Forest Park, IL, US· patent location history

1980Based in Hueytown, AL, US· patent location history

1985–1986Patents assigned to PULLMAN STANDARD INC (3)· patent assignee history

1985–1986Based in Homewood, IL, US· patent location history

1988–1989Patents assigned to TRINITY IND INC (2)· patent assignee history

1988–1989Based in Birmingham, AL, US· patent location history

1999Based in Salisbury, NC, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PULLMAN STANDARD INC	3	1985–1986
PULLMAN INC	2	1978–1980
TRINITY IND INC	2	1988–1989

Locations

Location	Patents	Span
Homewood, Illinois, US	3	1985–1986
Birmingham, AL, US	2	1988–1989
Salisbury, NC, US	1	1999
Hueytown, AL, US	1	1980
Forest Park, Illinois, US	1	1978