# Robert W. Longenecker — Patents explained on PatentBrief

Robert W. Longenecker has 1 landmark patent explained in plain English on PatentBrief.

- [How to Detect Disease Markers Using Colored Proteins](https://patentbrief.org/patent/us/4302536/colorimetric-immunoassay-process) — granted 1981
  A 1981 method for measuring disease-related proteins in blood by attaching them to naturally colored proteins that can be detected with light.

**Full profile:** https://patentbrief.org/inventor/robert-w-longenecker

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