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Inventor

Donald D. Carr

Inventor
Valley City, ND, US

Overview

3→
Patents
2000
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A01Bprimary
A01BSoil working in agriculture or forestry60%
E02FDredging20%
G05BControl or regulating systems in general20%
PatentTitleYear
6,076,612'Transition from position to draft mode controlled by hitch position command and feedback'20006,058,343'Threshold current control system for hydraulic valves'20006,016,875'Gain adaptation control for hydraulic systems'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000Patents assigned to CASE CORP (3)· patent assignee history
2000Based in Valley City, ND, US· patent location history
2000Based in Rochert, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CASE CORP32000
Locations
LocationPatentsSpan
Valley City, ND, US22000
Rochert, Minnesota, US12000