Inventor
John L. Addis
Inventor
Beaverton, OR, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Fprimary
H03FAmplifiers39%
G01RMeasuring electric variables11%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles6%
G05FSystems for regulating electric or magnetic variables6%
G05GControl devices or systems insofar as characterised by mechanical features only6%
H02KDynamo-electric machines6%
H03GControl of amplification6%
H03HImpedance networks, e.g. resonant circuits6%
H03KPulse technique6%
H05KPrinted circuits6%
PatentTitleYear
5,075,636'Differential amplifier with fast overdrive recovery'19914,731,693'Connection apparatus for integrated circuit'19884,731,588'Gain selectable amplifier with resonance compensation'19884,725,790'Broadband DC level shift circuit with feedback'19884,714,896'Precision differential amplifier having fast overdrive recovery'19874,713,627'Active filter with bootstrapping'19874,704,558'Method and apparatus for automatic oscilloscope calibration'19874,667,146'Voltage-controlled push-pull current source'19874,647,889'Rotary control having variable detents'19874,551,636'Wide bandwidth signal coupling circuit having a variable voltage-level shift from input to output'19854,390,852'Buffer amplifier'19834,132,958'Feedbeside correction circuit for an amplifier'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1991Patents assigned to TEKTRONIX INC (12)· patent assignee history
1979Based in Portland, OR, US· patent location history
1983–1991Based in Beaverton, OR, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TEKTRONIX INC | 12 | 1979–1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beaverton, OR, US | 11 | 1983–1991 |
| Portland, OR, US | 1 | 1979 |