Jacob Fraden’s most famous inventions include motion sensor lights and the in-ear thermometer.

Jacob Fraden’s most famous inventions include motion sensor lights and the in-ear thermometer. Photo by Melissa Jacobs.

When imagining a famous inventor in fiction, colorful images come to mind...

Take 1 minute to subscribe and you'll get this story immediately, plus:

Already a subscriber? Sign in

  • 52 weekly issues
  • Subscriber-only digital content every business day, plus full access to SDBJ.com archives
  • Book of Lists — the most comprehensive business resource in San Diego
  • San Diego 500 — influential business leaders you need to know
Yours for only $129