Inventor

Preston S. DuPont

Inventor
Northridge, CA, US

Overview

7→
Patents
1981–1989
Patent span
Electricity
Primary field (CPC H)

Patents· 7 as inventor

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

B64Gprimary
B64GCosmonautics15%
C04BLime, magnesia15%
H01BCables15%
Y10TTechnical subjects covered by former us classification15%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
E04CStructural elements5%
F02KJet-propulsion plants5%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1989Patents assigned to HUGHES AIRCRAFT CO (7)· patent assignee history
1981–1989Based in Northridge, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HUGHES AIRCRAFT CO71981–1989
Locations
LocationPatentsSpan
Northridge, California, US71981–1989