Inventor · Ratingen, DE

Siegfried Bluemel

11Patents
3h-index
12Co-inventors
53Inventor score

Filing activity: Aug 8, 2003 → Jan 20, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US7135065B2 Method for the post-treatment of titanium dioxide pigments Chemistry; Metallurgy 6 Expired
US7166157B2 Method for the surface treatment of a titanium dioxide pigment Emerging Cross-Sectional Technologies 5 Expired
US7147702B2 Method for the surface treatment of a titanium dioxide pigment Emerging Cross-Sectional Technologies 5 Expired
US7682441B2 Weather resistant titanium dioxide pigment and a process for its production Chemistry; Metallurgy 3 Expired
US9096762B2 Method for surface treatment of inorganic pigment particles Chemistry; Metallurgy 2 Active
US7763110B2 Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture Emerging Cross-Sectional Technologies 2 Active
US7905953B2 Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture Emerging Cross-Sectional Technologies 1 Active
US8845803B2 Method for the surface treatment of inorganic pigment particles Chemistry; Metallurgy 1 Active
US10160862B2 Production of titanium dioxide pigment obtainable by the sulfate process with a narrow particle size distribution Chemistry; Metallurgy 1 Active
US7988780B2 Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture Emerging Cross-Sectional Technologies 1 Active
US9962732B2 Method for coating the surface of inorganic particles with silicon dioxide and at least one further inorganic compound Chemistry; Metallurgy 0 Active

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