# Shirley Y. Kwok — Patents explained on PatentBrief

Shirley Y. Kwok has 1 landmark patent explained in plain English on PatentBrief.

- [Using PCR to Detect Viruses in Blood and Tissue Samples](https://patentbrief.org/patent/us/5176995/hiv-pcr-detection) — granted 1993
  A 1989 patent by Nobel laureate Kary Mullis and his team on using polymerase chain reaction (PCR) to replicate and detect tiny amounts of viral DNA or RNA, such as HIV and Hepatitis B, directly from human clinical samples.

**Full profile:** https://patentbrief.org/inventor/shirley-y-kwok

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