Inventor · Columbia Heights, MN, US

Daniel Johnson

4Patents
3h-index
1Co-inventors
40Inventor score

Filing activity: Dec 29, 1999 → Aug 22, 2012

Most-cited inventions

PatentTitleAreaCited byStatus
US6720930B2 Omnidirectional RFID antenna Electricity 117 Expired
US6350243B1 Portable hearing threshold tester Human Necessities 16 Expired
US8074093B1 Method and system for optimizing the completion of computing operations Emerging Cross-Sectional Technologies 9 Active
US9162364B2 Device for making lacerations in a surface and method thereof Emerging Cross-Sectional Technologies 0 Active

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