Inventor · Winchester, MA, US

Derek O'Hagan

74Patents
19h-index
45Co-inventors
84Inventor score

Filing activity: Jun 2, 1995 → Oct 16, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US8734832B2 Microemulsions with adsorbed macromolecules and microparticles Emerging Cross-Sectional Technologies 115 Active
US6884435B1 Microparticles with adsorbent surfaces, methods of making same, and uses thereof Chemistry; Metallurgy 94 Expired
US8431160B2 Microparticles containing biodegradable polymer and cationic polysaccharide for use in immunogenic compositions Human Necessities 60 Active
US7731967B2 Compositions for inducing immune responses Human Necessities 60 Expired
US6086901A Use of microparticles combined with submicron oil-in-water emulsions Emerging Cross-Sectional Technologies 52 Expired
US9295646B2 Cationic oil-in-water emulsions Emerging Cross-Sectional Technologies 45 Active
US6534064B1 Stabilized protein particles for inducing cellular immune responses Emerging Cross-Sectional Technologies 41 Expired
US11291635B2 Virion-like delivery particles for self-replicating RNA molecules Emerging Cross-Sectional Technologies 41 Active
US10238733B2 Cationic oil-in-water emulsions Emerging Cross-Sectional Technologies 36 Active
US6306405A Use of microparticles combined with submicron oil-in-water emulsions Emerging Cross-Sectional Technologies 34 Expired
US7604802B2 Method of obtaining cellular immune responses from proteins Emerging Cross-Sectional Technologies 33 Expired
US6861410B1 Immunological adjuvant compositions Chemistry; Metallurgy 30 Expired
US9192661B2 Delivery of self-replicating RNA using biodegradable polymer particles Chemistry; Metallurgy 29 Active
US9655845B2 Oil-in-water emulsions that contain nucleic acids Emerging Cross-Sectional Technologies 24 Active
US11135287B2 Method for preparing composition comprising a cationic oil-in-water emulsion Emerging Cross-Sectional Technologies 22 Active
US10307374B2 Oil-in-water emulsions that contain nucleic acids Emerging Cross-Sectional Technologies 22 Active
US11026890B2 Oil-in-water emulsions that contain nucleic acids Emerging Cross-Sectional Technologies 22 Active
US6458370B1 Use of microparticles combined with submicron oil-in-water emulsions Emerging Cross-Sectional Technologies 21 Expired
US6855492B2 Use of microparticles combined with submicron oil-in-water emulsions Emerging Cross-Sectional Technologies 19 Expired
US5603960A Preparation of microparticles and method of immunization Emerging Cross-Sectional Technologies 19 Expired
US7641911B2 Immunological adjuvant compositions Chemistry; Metallurgy 16 Active
US8771747B2 Microemulsions with adsorbed macromolecules and microparticles Emerging Cross-Sectional Technologies 16 Active
US8021834B2 Use of microparticles combined with submicron oil-in-water emulsions Emerging Cross-Sectional Technologies 15 Active
US7550145B2 Adjuvant compositions Chemistry; Metallurgy 14 Expired
US6573238B2 Method for producing sustained-release formulations Human Necessities 12 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.