Timothy B. Higginson

4 Patents

• US124210072025

  Deformable Hybrid Rigid Structure Vessels

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• US122962212025

  Double Retractable Rowing Resistance System with Configurable and Convertible Swinging Seat-based Exercise Machine

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• US118449772023

  Double Retractable Rowing Resistance System with Configurable and Convertible Swinging Seat-based Exercise Machine

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• US117727652023

  Wind-propelled Boat Having Parallel Self-righting Paired Masts for Wind-assisted Propulsion for Boats

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