Inventor · Portland, OR, US

Darren Johnson

10Patents
5h-index
6Co-inventors
55Inventor score

Filing activity: Feb 7, 2006 → Aug 27, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
USD555874S1 Winch General 44 Expired
USD776910S1 Shoe upper General 26 Active
USD776909S1 Shoe upper General 15 Active
US7703751B2 Winch assembly including clutch mechanism Mechanical Engineering; Lighting; Heating 13 Active
US7588233B2 Winch assembly including clutch mechanism Performing Operations; Transporting 5 Active
US10287844B2 Ball launcher Fixed Constructions 5 Active
US7491669B2 Adsorbent with multiple layers Emerging Cross-Sectional Technologies 3 Active
US10035217B2 Joint configuration Emerging Cross-Sectional Technologies 2 Active
US10947806B2 Surface deploying sleeve and plug launcher for an oil or gas well Fixed Constructions 2 Active
US11844469B1 Towel configured for attaching to an object Human Necessities 1 Active

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