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Inventor

David C. Polak

Inventor
Beaver Dam, WI, US

Overview

1→
Patents
1991
Patent span
Human necessities
Primary field (CPC A)

Patents· 1 as inventor

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

A01Dprimary
A01DHarvesting25%
B62DMotor vehicles25%
G05GControl devices or systems insofar as characterised by mechanical features only25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
PatentTitleYear
5,020,308'Self-propelled steerable walk behind mower linkage'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to DEERE & CO (1)· patent assignee history
1991Based in Beaver Dam, WI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DEERE & CO11991
Locations
LocationPatentsSpan
Beaver Dam, WI, US11991