Inventor · Stillman Valley, IL, US

Robert H. Youngren

18Patents
10h-index
10Co-inventors
69Inventor score

Filing activity: Feb 20, 1998 → Apr 26, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US6629684B2 Combination nail pulling tool Performing Operations; Transporting 28 Expired
USD549064S1 Hammer General 24 Expired
USD730134S1 Pick General 18 Active
USD752938S1 Hammer General 16 Active
USD549066S1 Hammer General 14 Expired
USD672218S1 Hammer General 14 Active
US6647829B1 Striking tool with weight forward head Performing Operations; Transporting 12 Expired
USD521342S1 Hammer General 11 Expired
USD601398S1 Hammer General 11 Expired
USD604136S1 Hammer General 10 Expired
USD551529S1 Hammer General 10 Expired
US7404346B2 Striking tool with weight forward head Performing Operations; Transporting 8 Expired
US6196088A Hammer with striking cap Performing Operations; Transporting 7 Expired
USD540646S1 Hammer General 6 Expired
US6976406B2 Striking tool with weight forward head Performing Operations; Transporting 6 Expired
USD788562S1 Hammer General 1 Active
USD773599S1 Machete General 0 Active
USD833246S1 Hammer General 0 Active

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