# Demetrios P. Papahadjopoulos — Patents explained on PatentBrief

Demetrios P. Papahadjopoulos has 1 landmark patent explained in plain English on PatentBrief.

- [How to Encapsulate Active Materials in Lipid Bubbles Efficiently](https://patentbrief.org/patent/us/4235871/hepatitis-b-vaccine-recombivax) — granted 1980
  This patent describes a method for trapping biologically active substances inside tiny, multi-layered fat bubbles called liposomes, using a specific water-in-oil emulsion and gel-forming process to improve how much material gets captured.

**Full profile:** https://patentbrief.org/inventor/demetrios-p-papahadjopoulos

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