Patent Portfolio

Explore Ebert Composites' intellectual property portfolio spanning three decades of innovation in thermoplastic pultrusion, radome manufacturing, 3D composite shaping, and joining technologies.

41Granted Patents
26Active
14Expired (Know-How)
7Technology Areas

Decades of Documented Innovation

Our 14 expired patents represent foundational know-how developed over 30+ years. While the legal protection has lapsed, these patents document proprietary techniques, manufacturing processes, and innovations that underpin our current technology leadership. This institutional knowledge—combined with ongoing process improvements—creates lasting competitive advantages that cannot be easily replicated.

Showing 41 of 41 patents

System and Method for Sequential Circumferential Deposition of Thermoplastic Composite Prepreg Material

Continuation patent for sequential circumferential deposition system enabling continuous processing of tubular shapes and rods with layered plies of prepreg tape.

Sequential Deposition
Filed: 7/15/2020Issued: 5/9/2023
Inventors:David W. Johnson, D. Michael Gordon
UtilitiesAerospaceInfrastructure

System and Method for Sequential Circumferential Deposition of Thermoplastic Composite Prepreg Material

System for sequential circumferential deposition using heatable folding shoes and forming tubes to layer plies of prepreg tape for continuous tubular processing.

Sequential Deposition
Filed: 7/15/2020Issued: 8/2/2022
Inventors:David W. Johnson, D. Michael Gordon
UtilitiesAerospaceInfrastructure

3D Thermoplastic Composite Pultrusion System and Method

System for continuous production of complex thermoplastic composite shapes including aircraft body panels and aerodynamic surfaces with ±0.001 inch positioning accuracy.

3D Pultrusion
Filed: 7/13/2018Issued: 10/22/2019
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceAutomotiveEnergy

3D Thermoplastic Composite Pultrusion System and Method

CNC-controlled actuators with flexible chilled bands to continuously produce thermoplastic composite pultrusions with varying geometric characteristics without expensive molds.

3D Pultrusion
Filed: 5/2/2018Issued: 1/29/2019
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceAutomotiveInfrastructure

3D Thermoplastic Composite Pultrusion System and Method

3D variable die system with CNC-controlled forming machines for continuous production of thermoplastic composite pultrusions with varying cross-section geometry.

3D Pultrusion
Filed: 9/24/2015Issued: 11/13/2018
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceAutomotiveInfrastructure

3D Thermoplastic Composite Pultrusion System and Method

Advanced 3D pultrusion system enabling production of complex curved thermoplastic composite profiles for aerospace and industrial applications.

3D Pultrusion
Filed: 9/24/2015Issued: 5/8/2018
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceAutomotiveEnergy

3D Thermoplastic Composite Pultrusion System and Method

Thermoplastic composite pultrusion with 3D forming capability for variable cross-section profiles and curved structural components.

3D Pultrusion
Filed: 9/24/2015Issued: 9/19/2017
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceInfrastructureAutomotive

3D Thermoplastic Composite Pultrusion System and Method

System for manufacturing 3D thermoplastic composite profiles with integrated CNC control for complex geometries.

3D Pultrusion
Filed: 9/24/2015Issued: 8/8/2017
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceInfrastructureAutomotive

3D Thermoplastic Composite Pultrusion System and Method

Foundational patent for 3D thermoplastic pultrusion enabling continuous curved composite profile production.

3D Pultrusion
Filed: 9/24/2015Issued: 4/11/2017
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceInfrastructureAutomotive

3D Thermoplastic Composite Pultrusion System and Method

Divisional patent covering specific aspects of 3D thermoplastic composite pultrusion technology.

3D Pultrusion
Filed: 9/24/2015Issued: 4/4/2017
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceInfrastructureAutomotive

Thermoplastic Pultrusion Die System and Method

Advanced thermoplastic pultrusion die with precision gap control for high-quality composite profile production.

Thermoplastic Pultrusion
Filed: 2/28/2012Issued: 6/10/2014
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
InfrastructureUtilitiesAerospace

Thermoplastic Pultrusion Die System and Method

Pull-pression technology combining pultrusion with compression molding through rapid, synchronized cycling of die cavity gaps.

Thermoplastic Pultrusion
Filed: 1/10/2013Issued: 4/1/2014
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
InfrastructureAerospaceTransportation

Thermoplastic Pultrusion Die System and Method

CNC-controlled servo motors and load cells for real-time pressure monitoring with die cavity gap tolerance of ±0.0001 inches.

Thermoplastic Pultrusion
Filed: 2/28/2012Issued: 1/15/2013
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
InfrastructureUtilitiesAerospace

Thermoplastic Pultrusion Die System and Method

Original thermoplastic pultrusion die system patent enabling precision composite manufacturing.

Thermoplastic Pultrusion
Filed: 3/24/2008Issued: 2/28/2012
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
InfrastructureUtilitiesTransportation

Thermoplastic Composite Tubular Lineal Forming System and Method

Method for processing thermoplastic composite tubular lineals using a stationary mandrel with release material and induction heating.

Sequential Deposition
Filed: 5/22/2018Issued: 6/25/2019
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
UtilitiesInfrastructureTransportation

Advanced Composite Radome and Method of Manufacturing

Radome technology featuring interconnected curved thermoplastic composite panels with 3D fiber bundles, hydrophobic self-cleaning coating, zero maintenance for 25+ years.

Radome Manufacturing
Filed: 7/16/2014Issued: 8/15/2017
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
DefenseAerospaceTelecommunications

Computer Numerical Control of Fiber Tension in Fiber Processing

CNC system for precise control of fiber tension during composite processing, ensuring consistent material properties.

Thermoplastic Pultrusion
Filed: 9/8/2008Issued: 2/14/2012
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceManufacturingInfrastructure

System and Method for Maintaining the Location of a Fiber Doff Inner-Diameter-Tow

Servo motor-controlled rotating turntable for twist-free fiber tow unwinding, achieving 100% payout reliability.

Thermoplastic Pultrusion
Filed: 6/29/2007Issued: 4/6/2010
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
ManufacturingAerospaceInfrastructure

Hybrid Pole Structure and Method of Assembly

Composite-metal hybrid pole structure combining the benefits of both materials for utility and infrastructure applications.

Hybrid Structures
Filed: 8/6/2012Issued: 6/23/2015
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
UtilitiesInfrastructureTelecommunications

90 Degree Ply Placement System and Method

System for placing fiber plies at 90 degrees during composite manufacturing for optimized structural properties.

Sequential Deposition
Filed: 10/10/2007Issued: 3/6/2012
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceDefenseManufacturing

Transport Structure

Ornamental design for composite transport structure used in utility and infrastructure applications.

Hybrid Structures
Filed: 3/4/2015Issued: 3/7/2017
Inventors:David W. Johnson
UtilitiesInfrastructure

Transport Structure

Ornamental design for composite transport structure configuration.

Hybrid Structures
Filed: 3/4/2015Issued: 8/2/2016
Inventors:David W. Johnson
UtilitiesInfrastructure

Temporary Shelter for Radome Installation and Method of Use

Provisional application for temporary shelter system to protect radome installations during construction and maintenance.

Radome Manufacturing
Filed: 6/11/2024
Inventors:David W. Johnson
DefenseAerospaceTelecommunications

3D Thermoplastic Composite Pultrusion System and Method

European patent for 3D thermoplastic composite pultrusion technology covering UK, France, Germany, Netherlands, Belgium, Switzerland, and Ireland.

3D Pultrusion
Filed: 3/3/2016Issued: 10/16/2019
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
AerospaceAutomotiveInfrastructure

Advanced Composite Radome and Method of Manufacturing

European patent for advanced composite radome technology covering UK, Germany, France, and Italy.

Radome Manufacturing
Filed: 8/25/2014Issued: 2/13/2019
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
DefenseAerospaceTelecommunications

Advanced Composite Radome and Method of Manufacturing

Japanese patent for advanced composite radome manufacturing technology.

Radome Manufacturing
Filed: 8/25/2014Issued: 9/12/2018
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
DefenseAerospaceTelecommunications

Advanced Composite Radome and Method of Manufacturing

Korean patent for advanced composite radome manufacturing technology.

Radome Manufacturing
Filed: 7/4/2016Issued: 7/13/2020
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
DefenseAerospaceTelecommunications

Interlocking Joint with Notch Reinforcement

Foundational patent for high-strength interlocking joints in pultruded composite structures using reinforcement inserts.

Snap Lock Joining
Filed: 5/8/1991Issued: 2/15/1994
Inventors:David W. Johnson
InfrastructureConstruction

High Shear Strength Pultrusion

Foundational process using pleated bidirectional woven fabric achieving 15,000 lbs/sq inch notched shear strength.

Thermoplastic Pultrusion
Filed: 1/26/1995Issued: 1/28/1997
Inventors:David W. Johnson, W. Brandt Goldsworthy, George Korzeniowski
InfrastructureTransportationConstruction

Method of Inserting Z-Axis Reinforcing Fibers into a Composite Laminate

Core Transonite technology: automated technique using pathway deposition probes to incorporate z-axis fiber reinforcement.

Transonite
Filed: 8/2/2001Issued: 11/11/2003
Inventors:David W. Johnson, Scott A. Garrett, James M. Hook, Steven G. Moyers
DefenseAerospaceNaval

Method of Clinching Z-Axis Fibers into Composite Laminate Surfaces

Automated pultrusion process achieving 83x compressive strength improvement (30 to 2,500+ psi) through fiber clinching.

Transonite
Filed: 11/19/2001Issued: 1/13/2004
Inventors:David W. Johnson, James M. Hook, Scott A. Garrett, Steven G. Moyers
DefenseAerospaceTransportation

3D Fiber Elements with High Moment of Inertia in Composite Sandwich Laminates

High moment-of-inertia structural elements from contiguously arranged Z-axis fiber bundles for enhanced shear resistance.

Transonite
Filed: 6/8/2004Issued: 6/6/2006
Inventors:David W. Johnson
DefenseAerospaceTransportation

Method of Inserting Z-Axis Reinforcing Fibers into a Composite Laminate

Automated process using rotating tapered pathway deposition probes integrated with pultrusion for continuous production.

Transonite
Filed: 11/10/2003Issued: 9/12/2006
Inventors:David W. Johnson, Scott A. Garrett, James M. Hook, Stephen G. Moyers
DefenseAerospaceInfrastructure

Composite Laminate Structure

Automated Z-axis fiber-reinforced sandwich structures for lightweight military aircraft runway matting (~3 lbs/sq ft).

Transonite
Filed: 12/23/2003Issued: 5/15/2007
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
DefenseAerospaceTransportation

Apparatus for Inserting Z-Axis Reinforcing Fibers into a Composite Laminate

Machinery with multiple laterally-spaced deposition units for automated continuous z-axis fiber reinforcement.

Transonite
Filed: 9/11/2006Issued: 6/17/2008
Inventors:David W. Johnson, Scott A. Garrett, James M. Hook, Stephen G. Moyers
DefenseAerospaceManufacturing

Composite Sandwich Panel and Method of Making Same

Two-step process: Z-axis fiber deposition with pultrusion curing, then CNC machining to create structural stringers.

Transonite
Filed: 7/19/2007Issued: 6/8/2010
Inventors:David W. Johnson
AerospaceDefenseTransportation

Composite Laminate Structure

Advanced sandwich composite with foam sections and Z-axis reinforcement achieving 35,000-50,000 psi shear modulus.

Transonite
Filed: 12/11/2008Issued: 8/31/2010
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers
DefenseAerospace

Composite Laminate Structure

Automated pultruded and clinched Z-axis fiber reinforced composite—fiber clinching analogous to riveting in sheet metal.

Transonite
Filed: 5/7/2007Issued: 12/7/2010
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers, James M. Hook
DefenseAerospaceTransportation

Method of Inserting Z-Axis Reinforcing Fibers into a Composite Laminate

Process using pathway deposition probes for continuous fiber bundle insertion with automated pultrusion integration.

Transonite
Filed: 6/16/2008Issued: 8/23/2011
Inventors:David W. Johnson, Scott A. Garrett, James H. Hook, Stephen G. Moyers
DefenseAerospaceInfrastructure

Doff System and Method

Adjustable doff core device converting virgin center-pull doffs to outside-tangent-pull configuration.

Thermoplastic Pultrusion
Filed: 1/5/2011Issued: 5/8/2012
Inventors:David W. Johnson, Scott G. Moyers, James M. Hook
ManufacturingAerospace

Composite Laminate Structure

Automated reinforced composite sandwich structures with Z-axis fibers achieving 83x compressive strength improvement at $0.30/sq ft.

Transonite
Filed: 12/7/2010Issued: 9/25/2012
Inventors:David W. Johnson, Scott A. Garrett, Stephen G. Moyers, James M. Hook
DefenseAerospaceTransportation

Interested in Licensing?

Our patents and accumulated know-how are available for licensing. Contact us to discuss terms, applications, and partnership opportunities.