Inventor · Indianola, IA, US

Richard J. Erwin

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

Filing activity: Sep 11, 2009 → Sep 11, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US8887412B2 Road position indication for motor grader snow plow Physics 3 Active

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