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Inventor

David D. Hedstrom

Inventor
St. Thomas, PA, US

Overview

3→
Patents
1988–2002
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.

B60Pprimary
B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects50%
A01DHarvesting25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
PatentTitleYear
6,336,783'Advanced rollback wheel-lift'20025,951,235'Advanced rollback wheel-lift'19994,724,661'Two piece crop harvesting header and flotation mechanism therefor'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to NEW HOLLAND INC (1)· patent assignee history
1988Based in Stevens, PA, US· patent location history
1999–2002Patents assigned to JERR DAN CORP (2)· patent assignee history
1999–2002Based in St. Thomas, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JERR DAN CORP21999–2002
NEW HOLLAND INC11988
Locations
LocationPatentsSpan
St. Thomas, Pennsylvania, US21999–2002
Stevens, Pennsylvania, US11988