Inventor · Marlborough, MA, US

Rajesh Kumar

128Patents
19h-index
198Co-inventors
89Inventor score

Filing activity: Mar 4, 1998 → Aug 7, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US6057558A Silicon carbide semiconductor device and manufacturing method thereof Electricity 167 Expired
US6573534B1 Silicon carbide semiconductor device Emerging Cross-Sectional Technologies 150 Expired
US6297100A Method of manufacturing silicon carbide semiconductor device using active and inactive ion species Emerging Cross-Sectional Technologies 72 Expired
US7456254B2 Polymer-based sustained release device Human Necessities 69 Expired
US6054752A Semiconductor device Electricity 65 Expired
US7563871B2 Polymer-based sustained release device Human Necessities 63 Active
US7612176B2 Polymer-based sustained release device Human Necessities 60 Active
US6551865B2 Silicon carbide semiconductor device and method of fabricating the same Emerging Cross-Sectional Technologies 60 Expired
US7705176B2 Macromolecular antioxidants based on sterically hindered phenols and phosphites Chemistry; Metallurgy 36 Active
US8080689B2 Nitrogen and hindered phenol containing dual functional macromolecular antioxidants: synthesis, performances and applications Chemistry; Metallurgy 29 Active
US6824822B2 Residual solvent extraction method and microparticles produced thereby Performing Operations; Transporting 28 Expired
US8431685B2 Polymer-based sustained release device Human Necessities 24 Active
US7705075B2 Stabilized polyolefin compositions Chemistry; Metallurgy 24 Active
US8008423B2 Stabilized polyolefin compositions Chemistry; Metallurgy 23 Active
US8461105B2 Polymer-based sustained release device Human Necessities 23 Active
US7956153B2 Macromolecular antioxidants based on sterically hindered phenols and phosphites Chemistry; Metallurgy 21 Active
US8252884B2 Stabilized polyolefin compositions Chemistry; Metallurgy 20 Active
US7902317B2 Synthesis of aniline and phenol-based antioxidant macromonomers and corresponding polymers Chemistry; Metallurgy 20 Active
US7223440B2 Residual solvent extraction method and microparticles produced thereby Performing Operations; Transporting 20 Expired
US8242230B2 Macromolecular antioxidants based on sterically hindered phenols and phosphites Chemistry; Metallurgy 19 Active
US8617613B2 Polymer-based sustained release device Human Necessities 19 Active
US8481670B2 Stabilized polyolefin compositions Chemistry; Metallurgy 18 Active
US8293871B2 Poly(lactide-co-glycolide) based sustained release microcapsules comprising a polypeptide and a sugar Human Necessities 18 Active
US6853006B2 Silicon carbide semiconductor device Electricity 18 Expired
US8039673B2 Macromolecular antioxidants comprising differing antioxidant moieties: structures, methods of making and using the same Chemistry; Metallurgy 16 Active

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