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For the Inventor, By the Inventor

Portsmouth, RI, United States of America

Andrew J Hull

USPTO Granted Patents = 18

Average Co-Inventor Count = 1.3

ph-index = 5

Forward Citations = 62(Granted Patents)


Location History:

  • New London, CT (US) (1995 - 1997)
  • Middletown, RI (US) (1998 - 2001)
  • Newport, RI (US) (2003 - 2006)
  • Portsmouth, RI (US) (2008 - 2022)

Company Filing History:

goldMedal18 out of 16,080 
 
USA As Represented by Secretary of the Navy
 patents

Years Active: 1995-2022

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18 patents (USPTO):Explore Patents
1. 11467075 - Method of estimating material properties of an elastic plate (2022-10-11),
2. 8392133 - Method for measuring shear wavespeed in an isotropic plate (2013-03-05),
3. 7613075 - Adaptive high frequency laser sonar system (2009-11-03),
4. 7590495 - Inverse method to calculate material properties using a non-resonant technique (2009-09-15),
5. 7584060 - Inverse method to calculate material properties using an insertion loss test (2009-09-01),
6. 7408841 - System and method for calculating the directivity index of a passive acoustic array (2008-08-05),
7. 7062386 - Method to estimate the mechanical properties of a solid material subjected to isonification (2006-06-13),
8. 7010981 - Inverse method for estimating the wave propagation parameters of two dissimilar wave types (2006-03-14),
9. 6848311 - Method for estimating the properties of a solid material subjected to compressional forces (2005-02-01),
10. 6845671 - Inverse method to estimate the properties of a flexural beam and the corresponding boundary parameters (2005-01-25),
11. 6609428 - Nonresonant technique for estimation of the mechanical properties of viscoelastic materials (2003-08-26),
12. 6519862 - Device for the acquisition of contoured human body surface vibration signals (2003-02-18),
13. 6178344 - Reconfigurable array for positioning medical sensors (2001-01-23),
14. 5808965 - Laboratory test method to measure towed array hydrophone response (1998-09-15),
15. 5757721 - Inverse method to measure the breathing wave speed in a liquid-filled (1998-05-26),

Title: Andrew J Hull: A Notable Innovator in Material Properties and Shear Wavespeed Measurement

Introduction

Andrew J Hull is a distinguished inventor based in Portsmouth, Rhode Island, USA. With an impressive portfolio of 18 patents, Hull has made significant contributions to the fields of material science and engineering. His work particularly focuses on advanced methods for estimating material properties and measuring shear wavespeed in various materials.

Latest Patents

Among Hull's latest innovations is a groundbreaking method for estimating material properties of an elastic plate. This method enhances measurement accuracy of complex Young's modulus and complex shear modulus by employing a sophisticated processing system. By testing the material to acquire an experimental frequency response transfer function of normal displacement to input force, Hull's approach efficiently refines material property values through error function minimization.

Another noteworthy patent is his method for measuring shear wavespeed in an isotropic plate. This technique utilizes a mechanical shaker test to apply a cyclical point force to the plate. By measuring the normal velocity of the resultant waves and transforming the data into frequency and wavevector domain spectra using Fourier transforms, Hull brilliantly determines propagation wavenumbers. His application of the Newton-Raphson gradient method in conjunction with Raleigh-Lamb dispersion curve equations provides accurate shear wavespeed analysis.

Career Highlights

Andrew J Hull is currently affiliated with the United States of America, represented by the Secretary of the Navy. His work has contributed significantly to the advancement of material testing and analysis, establishing him as a pivotal figure in the development of innovative engineering solutions.

Collaborations

Throughout his career, Hull has collaborated with esteemed colleagues, including Norman Lee Owsley and Stephen A Austin. These partnerships have played a crucial role in fostering innovative research and enhancing the practical applications of his patents.

Conclusion

In summary, Andrew J Hull's contributions to material properties estimation and shear wave speed measurement exemplify his commitment to innovation and excellence in engineering. His patents not only advance scientific understanding but also have the potential to influence a wide range of applications within the industry. Hull's work continues to inspire future inventions and innovations in material science.

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