LexDanaLexDanabeta
Inventor

Robert R. Schrunk, III

Inventor
Truman, MN, US

Overview

4→
Patents
1994–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 4 as inventor

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

E01Bprimary
E01BPermanent way67%
B60FVehicles for use both on rail and on road33%
PatentTitleYear
10,946,704Railroad trailer chassis20219,937,761Railroad trailer chassis20189,850,624Mobile automated tie replacement system20175,359,815'Profile grinder'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2018Patents assigned to HARSCO CORP (2)· patent assignee history
1994–2017Based in Truman, MN, US· patent location history
2017–2021Patents assigned to Harsco Technologies LLC (3)· patent assignee history
2018Based in Fairmount, MN, US· patent location history
2021Based in Fairmont, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
Harsco Technologies LLC32017–2021
HARSCO CORP21994–2018
Locations
LocationPatentsSpan
Truman, Minnesota, US21994–2017
Fairmont, Minnesota, US12021
Fairmount, Minnesota, US12018