PatentBrief

Inventor

L Blackwell

Patents indexed

1

Year range

1973

Associated with

Years active

1973

Total patents

1

Most recent

1973

Domains

consumer_electronicsmechanical

Activity by decade

1970s
1

Patents

1

Career timeline

1 patents, in 1973

Dot size = forward citations

19731974

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US 3735375·1973·Central Investment Corp

How Vacuum Tubes Detect Tiny Changes in High-Resistance Sensors

A 1973 circuit design using a vacuum tube to detect microscopic resistance shifts in sensors like ionization chambers, commonly used in early smoke detectors.

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