LexDanaLexDanabeta
Inventor

Allen J. Tuningley

Inventor
Richmond, CA

Overview

3→
Patents
1989–2014
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

E01Bprimary
E01BPermanent way40%
B23BTurning20%
B23PMetal-working not otherwise provided for20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
8,782,874'Railway tie automated preplating apparatus'20146,758,445'Replaceable point frog'20044,824,055'Railroad FROG'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to NORTRAK LIMITED (1)· patent assignee history
1989Based in Delta, CA· patent location history
2004Patents assigned to VAE NORTRAK NORTH AMERICA INC (1)· patent assignee history
2004Based in South Surrey, CA· patent location history
2014Patents assigned to TUNINGLEY ALLEN J (1)· patent assignee history
2014Patents assigned to VOESTALPINE NORTRACK INC (1)· patent assignee history
2014Based in Richmond, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NORTRAK LIMITED11989
TUNINGLEY ALLEN Jself12014
VAE NORTRAK NORTH AMERICA INC12004
VOESTALPINE NORTRACK INC12014
Locations
LocationPatentsSpan
Richmond, CA12014
South Surrey, CA12004
Delta, CA11989