Inventor · Harleysville, PA, US

Robert Mitchell Blankenship

36Patents
16h-index
42Co-inventors
81Inventor score

Filing activity: Feb 25, 1982 → Jan 5, 2010

Most-cited inventions

PatentTitleAreaCited byStatus
US4427836A Sequential heteropolymer dispersion and a particulate material obtainable therefrom, useful in coating compositions as a thickening and/or opacifying agent Emerging Cross-Sectional Technologies 169 Expired
US6420441B1 Porous materials Emerging Cross-Sectional Technologies 139 Expired
US4594363A Production of core-sheath polymer particles containing voids, resulting product and use Emerging Cross-Sectional Technologies 108 Expired
US4468498A Sequential heteropolymer dispersion and a particulate materal obtainable therefrom, useful in coating compositions as a thickening and/or opacifying agent Emerging Cross-Sectional Technologies 103 Expired
US6139961A Hollow sphere organic pigment for paper or paper coatings Emerging Cross-Sectional Technologies 72 Expired
US6632531B2 Porous particles, their aqueous dispersions, and method of preparation Emerging Cross-Sectional Technologies 51 Expired
US5510422A Synthesis of latex capsules Emerging Cross-Sectional Technologies 41 Expired
US5256746A Low molecular weight monoalkyl substituted phosphinate and phosphonate copolymers Chemistry; Metallurgy 35 Expired
US6020435A Process for preparing polymer core shell type emulsions and polymers formed therefrom Emerging Cross-Sectional Technologies 34 Expired
US5494971A Encapsulated hydrophilic polymers and their preparation Chemistry; Metallurgy 30 Expired
US6252004A Process for preparing multi-stage polymer emulsions and multi-stage polymers formed therefrom Emerging Cross-Sectional Technologies 23 Expired
US5304707A Method for solidification and encapsulation using core-shell polymer particles Physics 21 Expired
US6602804B2 Porous materials Emerging Cross-Sectional Technologies 21 Expired
US6939922B2 Coating and coating composition Emerging Cross-Sectional Technologies 19 Expired
US5527613A Synthesis of latex capsules Emerging Cross-Sectional Technologies 18 Expired
US4791151A Multilobals Emerging Cross-Sectional Technologies 16 Expired
US6673451B2 Process for forming an aqueous polymeric dispersion Emerging Cross-Sectional Technologies 16 Expired
US5545695A Encapsulated hydrophilic polymers and their preparation Chemistry; Metallurgy 13 Expired
US5294687A Low molecular weight monoalkyl substituted phosphinate and phosphonate copolymers Chemistry; Metallurgy 12 Expired
US7488534B2 Organic-inorganic composite particle and process for preparation thereof Emerging Cross-Sectional Technologies 10 Expired
US6896905B2 Porous particles, their aqueous dispersions, and method of preparation Emerging Cross-Sectional Technologies 10 Expired
US7691942B2 Aqueous dispersion of polymeric particles Emerging Cross-Sectional Technologies 9 Active
US7629414B2 Aqueous dispersion of polymeric particles Chemistry; Metallurgy 8 Active
US7803878B2 Process for preparing polymer emulsions and polymers formed therefrom Emerging Cross-Sectional Technologies 7 Active
US6784262B2 Processes for chemically-modifying the surface of emulsion polymer particles Emerging Cross-Sectional Technologies 7 Expired

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