Patents

Navatek Ltd. holds multiple U.S. and foreign patents on its innovative hull technologies and on several alternative energy technologies.

Patent Number Year Name
4,174,671 1979 Semi-Submerged Ship
5,313,906 1994 Small Waterplane Twin Hull Vessel
5,433,161 1995 SWAS Vessel
5,794,558 1998 Mid Foil SWAS
5,645,008 1997 Midfoil SWAS
6,263,819 2001 Low Drag Submerged Displacement Hull
2004270613 2010 Low Drag Submerged Asymmetric Displacement Lifting Body
2,524,176 2009 Low Drag Submerged Asymmetric Displacement Lifting Body
2272746 2013 Watercraft Hull with Bow Lifting Body
10-0806227 2008 Low Drag Submerged Asymmetric Displacement Lifting Body
267249 2009 Low Drag Submerged Asymmetric Displacement Lifting Body
117157 2008 Low Drag Submerged Asymmetric Displacement Lifting Body
04909 2005 Low Drag Submerged Asymmetric Displacement Lifting Body
7,004,093 2006 Low Drag Submerged Asymmetric Displacement Lifting Body
4680895 2011 Low Drag Submerged Asymmetric Displacement Lifting Body
543249 2008 Low Drag Submerged Asymmetric Displacement Lifting Body
7,299,763 2007 Hull with Propulsion Tunnel and Leading Edge Interceptor - LEPTI
7,338,336 2008 Watercraft Hull with Adjustable Keel
7,311,059 2007 Watercraft Hull with Entrapment Tunnel - BETI
7,191,725 2007 Bow Lifting Body
7,380,514 2008 Hull with Improved Trim Control
7,357,687 2008 Marine Propulsion Steering System
7,418,915 2008 Entrapment Tunnel Monohull Optimized for Waterjet and High Payload
563489 2009 (Divisional) Low Drag Submerged Asymmetric Displacement Lifting Body
7,459,802 2008 Marine Wave Energy Conversion System
7,845,301 2010 Ventilated Aft Swept Flow Interrupter Hull
7,845,302 2010 Ventilated Flow Interrupter Hull
7,598,624 2009 (Divisional) Marine Wave Energy Conversion System
8,210,116 2012 Watercraft with Hull Ventilation
8,584,734 2013 Two Material Phase Change Energy Storage System
8,800,466 2014 Inflatable Watercraft with Reinforced Panels
9,038,561 2015 Planing Hull for Rough Seas