Inventor · Mettmann, DE

Diana Maker

12Patents
5h-index
6Co-inventors
51Inventor score

Filing activity: Sep 12, 2008 → Jul 26, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US8236735B2 Oligoglycerol fatty acid ester lubricant additives for drilling fluids Emerging Cross-Sectional Technologies 19 Active
US8148305B2 Oligoglyercol fatty acid ester additives for water-based drilling fluids Emerging Cross-Sectional Technologies 18 Active
US8153562B2 Oligoglycerol fatty acid ester thickeners for oil-based drilling fluids Emerging Cross-Sectional Technologies 14 Active
US8193125B2 Crosslinked glycerol or oligoglycerol esters, and use thereof as an additive in drilling fluids Emerging Cross-Sectional Technologies 14 Active
US9085524B2 Method for the production of carboxylic acid esters during a transport Performing Operations; Transporting 6 Active
US9896613B2 Esters for drilling emulsions and metal working fluids Chemistry; Metallurgy 5 Active
US8763724B2 Emulsion-based cleaning composition for oilfield applications Fixed Constructions 4 Active
US9982182B2 Drilling composition, process for its preparation, and applications thereof Fixed Constructions 3 Active
US10435609B2 Hydrophilic ether carboxylic acids as lubricant for salt based drilling systems Chemistry; Metallurgy 2 Active
US10227545B2 Additives for oilfield and industrial applications Chemistry; Metallurgy 2 Active
US9745502B2 Drilling composition, process for its preparation, and applications thereof Fixed Constructions 2 Active
US10253236B2 Environmental friendly well treatment fluids comprising an ester Chemistry; Metallurgy 0 Active

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