Inventor · Midland, MI, US

David A. Spears

1Patents
1h-index
6Co-inventors
25Inventor score

Filing activity: Jul 31, 2009 → Jul 31, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US8309771B2 Two-stage, gas phase process for the manufacture of alkylene glycol Chemistry; Metallurgy 3 Active

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