Patent MarketPlace: Boat & Marine Patents and Trademarks for Sale

Boat mooring lines on a dockRetractable Boat Mooring Line (Johnston): U.S. Patent No. 9,694,878

Every boater has been there. You're on the dock having fun and someone stubs his or her toe on a cleat. Or, the lines are scattered everywhere creating a tripping hazard. Maybe the driver pulls into the dock overwhelmed, because he's trying not to damage the boat or the dock while trying to find his lines. And when he finally finds the lines, he finds some crazy way to tie the boat up between two posts with some knot he made up on the spot. Or…we dock at a marina and find that someone has taken the boat lines. Many new boaters do not know the correct length for their lines or how to use a cleat. Or the line is tangled, frayed, and cut from misuse and sun exposure – and soaked in algae. Yuk.

This patent solves these problems by creating a retractable mooring system which can be installed flush to the dock, on a post or piling of the dock, or on the boat if room permits. This system replaces traditional three-strand dock lines and toe-stubbing cleats. Inside a rust-proof enclosure, the lockable mooring device stores and protects the double-braided mooring line that comes equipped with an eye or snap hook at the end for easy mooring. When mounted flush to the surface, there aren't any cleats or messy lines hanging around the dock to trip over, thus providing safety while walking on the dock. To help find the device, a solar-powered LED light that illuminates the area for efficient mooring is included in the patent.

U.S. Patent No. 9,694,878 for a “Mooring device” will enable any boating accessories supplier to go to market with a highly practical, safety-focused, and a must-have product for owners of boats of all sizes. The inventor also holds U.S. Trademark 88522330 for “Moor Line”.

Thermal Thruster Marine Power (Singh): U.S. Patent No. 12,017,735

In The Hunt for Red October the CIA and U.S. Navy were faced with a new submarine design by the Russians that used NO propellors – and, therefore, it could not be detected by sonar. But that was fiction. It was in 1838 that John Ericsson was awarded U.S. Patent No. 588 for a “Screw propeller” and propellers have been the technology that has driven ships through the water for the last 186 years.

The new technology detailed in this patent represents the first significant advancement in marine propulsion since the invention of the propeller. It introduces a thermal thruster system that uses a plate-type electric heating element with a heat-emitting surface. This system leverages the extraordinary expansion-ratio of water to steam (a ratio of 1:1,700) to generate thrust. By boiling the water surrounding the thruster, a substantial pressure difference is created between the steam-filled region and the cooler water. This pressure-difference produces the thrust, thus propelling the watercraft. The engine powering the propellers is replaced with a motor that generates electrical power to heat the water. Alternatively, a thermal thruster can function as a secondary propulsion system alongside a traditional propellor with an electric generator powered by the boat’s main engine. Additionally, to optimize energy-efficiency, the thruster may be operated in pulsed mode – shutting off after generating a steam bubble and restarting after fresh water displaces the bubble

U.S. Patent No. 12,017,735 for a “Thermal marine propulsion system” offers a compact design, cost-effectiveness, increased energy-efficiency, lower emissions, enhanced reliability, improved performance, a self-cleaning effect, and compatibility with existing propulsion systems. It would be a strategic acquisition for any boat or ship manufacturer.

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