# Stephan B. Sears — Patents explained on PatentBrief

Stephan B. Sears has 1 landmark patent explained in plain English on PatentBrief.

- [How Piezoelectric Inkjet Printing Works](https://patentbrief.org/patent/us/3946398/drop-on-demand-inkjet) — granted 1976
  A 1970 patent describing how to print images by using electrical pulses to bend a tiny crystal plate, squeezing individual ink drops out of a nozzle on demand.

**Full profile:** https://patentbrief.org/inventor/stephan-b-sears

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._