Inventor · Washougal, WA, US

John A. Widder

3Patents
2h-index
1Co-inventors
34Inventor score

Filing activity: Dec 14, 1993 → Oct 14, 2008

Most-cited inventions

PatentTitleAreaCited byStatus
US5475405A Control circuit for regulating temperature in an ink-jet print head Performing Operations; Transporting 57 Expired
US5646654A Ink-jet printing system having acoustic transducer for determining optimum operating energy Performing Operations; Transporting 18 Expired
US7995217B2 High-resolution encoder array Physics 0 Active

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