LexDanaLexDanabeta
Inventor

Robert L. Mayfield

Inventor
Cedar Falls, IA, US

Overview

8→
Patents
1980–2013
Patent span
Human necessities
Primary field (CPC A)

Patents· 8 as inventor

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

A01Bprimary
A01BSoil working in agriculture or forestry33%
B60NSeats specially adapted for vehicles8%
E02FDredging8%
F16PSafety devices in general8%
G01SRadio direction-finding8%
G05DSystems for controlling or regulating non-electric variables8%
LOC108%
LOC218%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
8,565,984'System and method of steering for a work vehicle towing a towed implement on lateral slopes'2013D0687902'Autonomous machine form'20137,962,266'Method, controller and vehicle for performing agricultural operations on a field with parallel arranged rows'20116,434,462'GPS control of a tractor-towed implement'2002D0437563'Vehicle maintenance reminder'20015,201,539'Actuating mechanism for a hitch guidance system'19934,840,604'Master safety shield with deflecting door'19894,228,984'Vibration attenuator seat'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–2013Patents assigned to DEERE & CO (6)· patent assignee history
1980–2013Based in Cedar Falls, IA, US· patent location history
1989Based in Waterloo, IA, US· patent location history
2001Based in Rocky Mount, NC, US· patent location history
2013Patents assigned to BENDER SCOTT (1)· patent assignee history
2013Patents assigned to Deere & Comany (1)· patent assignee history
2013Patents assigned to HUNT TIMOTHY S (1)· patent assignee history
2013Patents assigned to KIZLYK MERVIN P (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DEERE & CO61980–2013
BENDER SCOTT12013
Deere & Comany12013
HUNT TIMOTHY S12013
KIZLYK MERVIN P12013
Locations
LocationPatentsSpan
Cedar Falls, IA, US61980–2013
Rocky Mount, NC, US12001
Waterloo, IA, US11989