Patent assignee · US · INDIVIDUAL

John T. Sullivan

3Patents
1Active
3Granted
31Portfolio score

Filing activity: Jun 26, 1987 → Apr 20, 2009 · 1 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US5823543A Roller skate shock absorber system Human Necessities 28 Expired
US7612660B1 Pit road display Performing Operations; Transporting 1 Active
US4781356A Pinch type valves Mechanical Engineering; Lighting; Heating 1 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.