Inventor · Portland, OR, US

Dan Johnson

3Patents
1h-index
5Co-inventors
37Inventor score

Filing activity: Mar 28, 2012 → Dec 10, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US8667734B2 Hydroponic plant container with highly oxygenated nutrient solution using continuous air injection and continuous coriolis effect mixing Emerging Cross-Sectional Technologies 12 Active
US11378042B1 Internal combustion engine ignition device Emerging Cross-Sectional Technologies 1 Active
US11150220B2 Online analyzers for flare gas processing Physics 0 Active

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