Inventor · Dortmund, DE

Ralf Meier

17Patents
4h-index
50Co-inventors
59Inventor score

Filing activity: Oct 2, 2008 → Jun 3, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US8399658B2 Method for isolation of laurolactam from a laurolactam synthesis process stream Chemistry; Metallurgy 17 Active
US9221007B2 Method and device for separating acid gases from a gas mixture Emerging Cross-Sectional Technologies 10 Active
US8426637B2 Process for preparation of high purity methacrylic acid Emerging Cross-Sectional Technologies 5 Active
US9643153B2 Membrane-supported catalyst removal in the epoxidation of cyclic unsaturated C12 compounds, for example cyclododecene (CDEN) Emerging Cross-Sectional Technologies 5 Active
US9533932B2 Process for preparing cyclododecanone Chemistry; Metallurgy 4 Active
US9533933B2 Process for preparing cyclododecanone Chemistry; Metallurgy 4 Active
US9278898B2 Workup of a cyclododecanone cyclododecanol mixture in a dividing wall column Performing Operations; Transporting 3 Active
US9637436B2 Catalyst system for producing ketones from epoxides Chemistry; Metallurgy 3 Active
US9156768B2 Isolation of acrylic acid by means of a distillation column having a side offtake Emerging Cross-Sectional Technologies 3 Active
US9382181B2 Workup of a cyclododecanone cyclododecanol mixture in a sequence of side draw columns Chemistry; Metallurgy 2 Active
US10913960B2 Biotechnological production of omega-functionalised carboxylic acids and esters thereof Emerging Cross-Sectional Technologies 0 Active
US11370752B2 Process for preparing cyclododecanone Chemistry; Metallurgy 0 Active
US10479751B2 Process for preparing acrylic acid Performing Operations; Transporting 0 Active
US7807826B2 Purification of a crude lactam mixture by means of melt crystallization Chemistry; Metallurgy 0 Active
US11034640B1 Method for the continuous production of ketones from epoxides in a fixed bed Chemistry; Metallurgy 0 Active
US9929615B2 Winding arrangement and method for producing a winding arrangement Electricity 0 Active
US10994270B2 Method for reactivation of a homogeneous oxidation catalyst Emerging Cross-Sectional Technologies 0 Active

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