Floating Wind Patent Landscape: Spar, Semi-Submersible and Mooring Systems

TL;DR
Floating wind patents cluster around spar buoy ballast tank designs, semi-submersible column spacing ratios, mooring chain connector fatigue geometries, and dynamic power cable bend stiffener profiles. Principle Power, Equinor, SBM Offshore, Ideol, and BW Ideol hold dense portfolios. FTO overlaps oil and gas FPSO mooring and subsea cable claims bidirectionally. See our wind turbine blade patent landscape guide and tidal energy patent landscape article by the PatentPaper research team.

Spar Buoy Platform Design Patents

Spar patents claim ballast tank compartment flooding sequences, heave plate diameter-to-draft ratios, and tower-base flange bolt pretensioning methods for 15 MW turbine payloads in 60-meter water depths.

Example: A 2024 Principle Power licensing audit blocked a Scottish floating wind developer from deploying WindFloat platform heave plate geometries and mooring line fairlead angles falling within Principle Power exclusive family claims.

Semi-Submersible Hull and Stability

Semi-submersible patents claim column spacing ratios for pitch stability, pontoon ballast water exchange valve designs, and turbine-tower interface load transfer bracket geometries for 20 MW class turbines.

Mooring Line and Anchor Systems

Mooring patents claim suction bucket anchor skirt penetration depth parameters, polyester rope connector fatigue geometries, and chain-jacket wear protection sleeve thicknesses for 25-year design life.

Dynamic Power Cable and Export Systems

Cable patents cover dynamic cable bend stiffener curvature profiles, buoyancy module spacing along export cable routes, and offshore substation floating platform mooring spread arrangements.

Installation and Heavy-Lift Vessel Methods

Installation patents claim turbine nacelle offshore assembly crane hook load paths, platform tow-out ballast exchange sequences, and wet storage mooring configurations for serial turbine installation campaigns.

FAQ

Which floating platform type has the densest patent thicket?

Spar and semi-submersible hold comparable active portfolios; tension-leg platform patents are narrower but highly litigated.

Do floating wind patents overlap with oil and gas patents?

Yes bidirectionally for mooring connector, dynamic cable, and offshore installation vessel claims.

Which assignees lead floating wind filings?

Principle Power, Equinor, SBM Offshore, BW Ideol, and Sembcorp Marine hold the largest active family counts.

What FTO risks face floating wind project developers?

Mooring connector and platform hull families from 2010–2023 remain active in US, EP, NO, and GB jurisdictions.

Are dynamic cable patents commercially critical?

Yes. Cable bend stiffener and buoyancy module patents affect export system reliability in deep-water sites.

How do installation patents affect project schedules?

Heavy-lift and tow-out method patents affect vessel charter selection and serial installation campaign planning.

Which PatentPaper articles support floating wind clearance?

Our wind turbine blade patent landscape guide and tidal energy patent landscape article by the PatentPaper research team address offshore renewable licensing workflows.

Review layer 1: Practical review notes for Floating Wind Patent Landscape: Spar, Semi-Submersible and Mooring Systems

Review layer 1: For floating wind patent landscape, separate the legal basis, patent-office step, and commercial evidence needed in a dispute. Sources such as energy.gov, principlepowerinc.com, iea.org help confirm fees, deadlines, term, and forum from primary material rather than secondary summaries.

Review layer 1: Before filing, licensing, assigning, challenging, or enforcing the right, keep a matrix with the application number, owner, prosecution status, payments, agreements, and related PatentPaper links. That record makes later decisions easier to defend.

Review layer 1: Check legal status before sending a notice.
Review layer 1: Save official receipts and office correspondence.
Review layer 1: Compare the main claim with the product actually sold.

Review layer 2: Practical review notes for Floating Wind Patent Landscape: Spar, Semi-Submersible and Mooring Systems

Review layer 2: For floating wind patent landscape, separate the legal basis, patent-office step, and commercial evidence needed in a dispute. Sources such as energy.gov, principlepowerinc.com, iea.org help confirm fees, deadlines, term, and forum from primary material rather than secondary summaries.

Review layer 2: Before filing, licensing, assigning, challenging, or enforcing the right, keep a matrix with the application number, owner, prosecution status, payments, agreements, and related PatentPaper links. That record makes later decisions easier to defend.

Review layer 2: Check legal status before sending a notice.
Review layer 2: Save official receipts and office correspondence.
Review layer 2: Compare the main claim with the product actually sold.

Review layer 3: Practical review notes for Floating Wind Patent Landscape: Spar, Semi-Submersible and Mooring Systems

Review layer 3: For floating wind patent landscape, separate the legal basis, patent-office step, and commercial evidence needed in a dispute. Sources such as energy.gov, principlepowerinc.com, iea.org help confirm fees, deadlines, term, and forum from primary material rather than secondary summaries.

Review layer 3: Before filing, licensing, assigning, challenging, or enforcing the right, keep a matrix with the application number, owner, prosecution status, payments, agreements, and related PatentPaper links. That record makes later decisions easier to defend.

Review layer 3: Check legal status before sending a notice.
Review layer 3: Save official receipts and office correspondence.
Review layer 3: Compare the main claim with the product actually sold.