Inventor · Ashland, MA, US

John E. O'Gara

37Patents
11h-index
19Co-inventors
72Inventor score

Filing activity: Jun 10, 1999 → Aug 31, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US6686035B2 Porous inorganic/organic hybrid particles for chromatographic separations and process for their preparation Emerging Cross-Sectional Technologies 87 Expired
US6528167B2 Porous hybrid particles with organic groups removed from the surface Emerging Cross-Sectional Technologies 55 Expired
US7250214B2 Porous inorganic/organic hybrid monolith materials for chromatographic separations and process for their preparation Emerging Cross-Sectional Technologies 49 Expired
US7442299B2 Ion exchange porous resins for solid phase extraction and chromatography Physics 41 Active
US7175913B2 Porous hybrid particles with organic groups removed from the surface Emerging Cross-Sectional Technologies 35 Expired
US9120083B2 Porous inorganic/organic hybrid particles having high organic content and enhanced pore geometry for chromatographic separations Emerging Cross-Sectional Technologies 31 Active
US7223473B2 Porous inorganic/organic hybrid particles for chromatographic separations and process for their preparation Emerging Cross-Sectional Technologies 30 Expired
US7919177B2 Porous inorganic/organic hybrid particles for chromatographic separations and process for their preparation Emerging Cross-Sectional Technologies 24 Active
US8658277B2 Porous inorganic/organic hybrid materials with ordered domains for chromatographic separations and processes for their preparation Emerging Cross-Sectional Technologies 21 Active
US8404346B2 Porous inorganic/organic hybrid monolith materials for chromatographic separations and process for their preparation Emerging Cross-Sectional Technologies 15 Active
US6322695A Ion exchange porous resins for solid phase extraction and chromatography Physics 15 Expired
US8791220B2 Porous inorganic/organic homogenous copolymeric hybrid materials for chromatographic separation and process for the preparation thereof Emerging Cross-Sectional Technologies 10 Active
US7232520B1 Ion exchange porous resins for solid phase extraction and chromatography Chemistry; Metallurgy 9 Expired
US7731844B2 Porous materials for solid phase extraction and chromatography and processes for preparation and use thereof Physics 7 Expired
US10639273B2 Particles for injection and processes for forming the same Human Necessities 5 Active
US8246998B2 Injectable biodegradable particles Emerging Cross-Sectional Technologies 4 Active
US8114436B2 Compositions and methods for delivery of embolics Human Necessities 3 Active
US8568594B2 Method for separating peptides and proteins Physics 2 Active
US9115178B2 Method for separating peptides and proteins Physics 2 Active
US9145481B2 Porous inorganic/organic hybrid materials with ordered domains for chromatographic separations and processes for their preparation Emerging Cross-Sectional Technologies 2 Active
US9526804B2 Injectable biodegradable particles Emerging Cross-Sectional Technologies 2 Active
US8574433B2 Ion exchange porous resins for solid phase extraction and chromatography Physics 1 Active
US9211524B2 Porous inorganic/organic homogenous copolymeric hybrid materials for chromatographic separations and process for the preparation thereof Emerging Cross-Sectional Technologies 1 Active
US8778453B2 Porous inorganic/organic hybrid particles for chromatographic separations and process for its preparation Emerging Cross-Sectional Technologies 1 Active
US9546257B2 Porous carbon-heteroatom-silicon inorganic/organic materials for chromatographic separations and process for the preparation thereof Chemistry; Metallurgy 1 Active

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