# Terrence C. Dahl — Patents explained on PatentBrief

Terrence C. Dahl has 2 landmark patents explained in plain English on PatentBrief.

- [How Gilead Stabilized the HIV Combination Pill Truvada](https://patentbrief.org/patent/us/9744181/harvoni-ledipasvir-sofosbuvir) — granted 2017
  A patent detailing a stable, fixed-dose combination of two HIV drugs, tenofovir disoproxil fumarate and emtricitabine, designed to prevent chemical breakdown in a single tablet.
- [How Gilead Made a Stable HIV Pill Combining Two Medicines](https://patentbrief.org/patent/us/8592397/truvada-tdf-ftc-for-prep) — granted 2013
  This patent describes a stable, single-pill combination of two HIV drugs, tenofovir disoproxil fumarate and emtricitabine, designed to prevent them from breaking down when stored together.

**Full profile:** https://patentbrief.org/inventor/terrence-c-dahl

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