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Inventor

David J. Keats

Inventor
Brantford, CA

Overview

4→
Patents
2002–2006
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

B61Dprimary
B61DBody details or kinds of railway vehicles43%
A01BSoil working in agriculture or forestry14%
A01CPlanting14%
Y02TClimate change mitigation technologies related to transportation14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
7,025,003'Dropped deck center beam rail road car with shallow center sill'20066,796,758'Rail road car with lading securement storage apparatus'20046,612,793'Rail road car with lading securement storage apparatus'20036,454,019'Agricultural implement down pressure system'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to CASE CORP (1)· patent assignee history
2002–2006Based in Brantford, CA· patent location history
2003–2006Patents assigned to NAT STEEL CAR LTD (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NAT STEEL CAR LTD32003–2006
CASE CORP12002
Locations
LocationPatentsSpan
Brantford, CA42002–2006