Company Filing History:
Years Active: 1994-2002
Title: John M Liu: Innovator in Nondestructive Testing Technologies
Introduction
John M Liu is a notable inventor based in Columbia, MD (US), recognized for his contributions to nondestructive testing technologies. With a total of 4 patents, Liu has made significant advancements in the detection of material flaws and corrosion.
Latest Patents
Liu's latest patents include innovative methods for detecting steel surface corrosion and flaws in layered material structures. The first patent, titled "Nondestructive detection of steel surface corrosion," involves applying a static DC magnetic field to a targeted surface of protectively coated steel. This method varies the amount of microwave energy absorbed, allowing for the detection of hidden corrosion products. The second patent, "System for detection of flaws by use of microwave radiation," focuses on probing targeted portions of material with microwave radiation. By adjusting the antenna position and orientation, this system establishes a single oblique incidence path for evaluating and detecting defects.
Career Highlights
John M Liu works for the United States Navy, where he applies his expertise in developing advanced testing technologies. His work has contributed to enhancing the safety and reliability of various materials used in military applications.
Collaborations
Liu collaborates with fellow inventor Susan N Vernon, leveraging their combined expertise to further innovate in the field of nondestructive testing.
Conclusion
John M Liu's work exemplifies the importance of innovation in detecting material flaws and corrosion, contributing to advancements in safety and reliability in various applications. His patents reflect a commitment to improving nondestructive testing technologies.
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