Inventor · Diemelstraße, TX, US

Douglas Derr

2Patents
0h-index
3Co-inventors
27Inventor score

Filing activity: Sep 1, 2011 → Oct 17, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US8997879B2 Diverter spool and methods of using the same Fixed Constructions 0 Active
US11136857B2 Rapid response well control assembly Fixed Constructions 0 Active

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