On April 28, 1999, African American inventor George Toliver was awarded U.S. Patent No. 5,897,270 for a novel design of a ship’s propeller that significantly improved propulsion efficiency. Toliver’s invention featured a ducted blade system that reduced cavitation and turbulence, making marine vessels more fuel-efficient and stable. His contribution was especially impactful in maritime engineering, where advancements in propulsion technology can lead to better environmental and economic outcomes. Toliver’s work exemplifies how Black inventors continue to push boundaries in fields often overlooked in mainstream narratives.
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