Inventor · Yorba Linda, CA, US

Robert Hadley

69Patents
29h-index
15Co-inventors
85Inventor score

Filing activity: Jun 22, 2001 → Jun 17, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
USD693414S1 Electric scooter General 82 Active
USD692963S1 Scooter General 77 Active
US7338056B2 One piece flexible skateboard Human Necessities 72 Active
USD691671S1 Caster scooter General 68 Active
USD512467S1 Go kart General 66 Expired
USD717881S1 Scooter General 65 Active
USD748738S1 Electric scooter General 59 Active
US7775534B2 Flexible skateboard with grinding tube Human Necessities 56 Active
USD684217S1 Scooter General 55 Active
USD774145S1 Electric scooter General 55 Active
USD811489S1 Electric scooter General 55 Active
US8813892B2 Braking device for a personal mobility vehicle Mechanical Engineering; Lighting; Heating 51 Active
USD686674S1 Scooter General 50 Active
USD810836S1 Electric scooter General 50 Active
USD793481S1 Drifting kart General 48 Active
USD484073S1 Tricycle General 47 Expired
USD839359S1 Electric scooter General 47 Active
US7766351B2 One piece flexible skateboard Human Necessities 46 Active
US7600768B2 One piece flexible skateboard Human Necessities 43 Active
US10099745B2 Braking device for a personal mobility vehicle Mechanical Engineering; Lighting; Heating 42 Active
US8820460B2 Powered personal mobility vehicle with rotating wheels Emerging Cross-Sectional Technologies 40 Active
US9321504B2 Braking device for a personal mobility vehicle Mechanical Engineering; Lighting; Heating 40 Active
USD872192S1 Electric scooter General 38 Active
USD830469S1 Drifting kart General 37 Active
US7891680B2 Flexboard for scooter rear end Human Necessities 36 Active

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