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Inventor

Walter D. Fields

Inventor
Beaverton, OR, US

Overview

3→
Patents
1989–1995
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

F02Dprimary
F02DControlling combustion engines17%
G01RMeasuring electric variables17%
H01PWaveguides17%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses17%
H05KPrinted circuits17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
5,402,019'Phase startable clock device'19955,068,614'Swept frequency domain relectometry enhancement'19914,821,007'Strip line circuit component and method of manufacture'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1995Patents assigned to TEKTRONIX INC (3)· patent assignee history
1989–1995Based in Beaverton, OR, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TEKTRONIX INC31989–1995
Locations
LocationPatentsSpan
Beaverton, OR, US31989–1995