Inventor · Roanoke, VA, US

Robert A. Ryan

4Patents
2h-index
4Co-inventors
41Inventor score

Filing activity: Nov 23, 1976 → Jun 10, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US4072225A Combined pin feed and pressure roll forms advancement apparatus Performing Operations; Transporting 7 Expired
US4416653A Apparatus for stacking fan-folded paper Performing Operations; Transporting 4 Expired
US8007701B2 Positionable gas injection nozzle assembly for an underwater pelletizing system Performing Operations; Transporting 1 Active
US8011912B2 Positionable gas injection nozzle assembly for an underwater pelletizing system Performing Operations; Transporting 1 Active

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