Inventor · Portland, OR, US

David D. Lewin

59Patents

15h-index

26Co-inventors

80Inventor score

Filing activity: Oct 2, 2009 → Jan 10, 2023

Most-cited inventions

Patent	Title	Area	Cited by	Status
US8152327B2	Focusing lens system	Emerging Cross-Sectional Technologies	48	Active
USD650104S1	Lantern	General	36	Expired
USD730477S1	Optical sighting device for carbines and other projectile weapons	General	31	Active
USD750306S1	Flashlight	General	28	Active
USD861212S1	Headlamp	General	25	Active
USD814676S1	Headlamp	General	22	Active
USD751742S1	Flashlight	General	22	Active
USD724248S1	Headlamp	General	20	Active
USD645592S1	Flashlight	General	19	Expired
USD674831S1	Spotting scope	General	18	Active
USD671974S1	Binoculars	General	16	Active
USD824063S1	Compact light	General	15	Active
USD804695S1	Headlamp	General	15	Active
USD685831S1	Spotting scope	General	15	Active
USD675239S1	Spotting scope	General	15	Active
USD685832S1	Spotting scope	General	14	Active
USD802189S1	Headlamp	General	11	Active
USD672381S1	Binoculars	General	10	Active
USD759279S1	Flashlight tailcap	General	10	Active
USD733832S1	Sighting device	General	10	Active
USD943130S1	Lantern	General	8	Active
USD861211S1	Headlamp	General	8	Active
USD952215S1	Lantern	General	7	Active
USD914257S1	Flashlight	General	7	Active
USD892378S1	Work light	General	7	Active

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