Inventor
Scott R. Duncan
Inventor
Lake Zurich, IL, US
Overview
Patents· 5 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 axles50%
B61GCouplings17%
B62DMotor vehicles17%
F16LPipes17%
PatentTitleYear
6,691,625'Friction wedge for a railroad car truck having a replaceable wear member'20046,672,224'Railway car truck with a rocker seat'20046,640,661'Tilt steering wheel'20036,374,749'Friction wedge for a railroad car truck having a replaceable wear member'20026,062,406'Pivot pin and retention clip assembly for a railroad car coupler'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2002Patents assigned to NACO INC (2)· patent assignee history
2000–2004Based in Lake Zurich, IL, US· patent location history
2003Patents assigned to DAIMLER CHRYSLER CORP (1)· patent assignee history
2003Based in Troy, MI, US· patent location history
2004Patents assigned to ASF KEYSTONE INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ASF KEYSTONE INC | 2 | 2004 |
| NACO INC | 2 | 2000–2002 |
| DAIMLER CHRYSLER CORP | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lake Zurich, Illinois, US | 4 | 2000–2004 |
| Troy, MI, US | 1 | 2003 |