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Inventor

Donald K. Alexander

Inventor
Ellicott City, MD, US

Overview

4→
Patents
1989–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

G01Sprimary
G01SRadio direction-finding38%
H01QAntennas, i.e. radio aerials38%
H04LTransmission of digital information, e.g. telegraphic communication13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
11,038,808Resource capacity management20214,904,831'Mitered mechanical switches'19904,894,114'Process for producing vias in semiconductor'19904,823,136'Transmit-receive means for phased-array active antenna system using rf redundancy'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1990Patents assigned to WESTINGHOUSE ELECTRIC CORP (3)· patent assignee history
1989–1990Based in Ellicott City, MD, US· patent location history
2021Patents assigned to AMAZON TECH INC (1)· patent assignee history
2021Based in Seattle, WA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WESTINGHOUSE ELECTRIC CORP31989–1990
AMAZON TECH INC12021
Locations
LocationPatentsSpan
Ellicott City, Maryland, US31989–1990
Seattle, Washington, US12021