Company Filing History:
Years Active: 2013-2019
Title: Innovations of David A. Lee
Introduction
David A. Lee is an accomplished inventor based in Ligonier, Indiana, known for his significant contributions to the field of materials science. He holds three patents that showcase his expertise in developing advanced alloy compositions and coatings. His work has implications for various industries, particularly those requiring durable and resistant materials.
Latest Patents
One of his latest patents is focused on wear-resistant and corrosion-resistant cobalt-based alloy powders and their applications. This patent describes cobalt-based alloy compositions that are compatible with thermal spray and sintering techniques. These alloy compositions can provide claddings to a variety of metallic substrates with complex geometries, exhibiting desirable properties such as density, hardness, wear resistance, and corrosion resistance. The alloy composition includes 15-25 wt. % chromium, 15-20 wt. % molybdenum, 0-15 wt. % tungsten, 10-20 wt. % nickel, 2.5-3.5 wt. % boron, 2.5-4.5 wt. % silicon, 1-2 wt. % carbon, and the balance cobalt, with a boron to silicon ratio ranging from 0.5 to 1.0.
Another notable patent by David A. Lee is for spallation-resistant multilayer thermal spray metal coatings. This innovation involves a multilayer coating on a metal substrate that includes a first metal coating layer made of a composite carbide material, a second layer comprising at least 50 wt. % of a metal selected from cobalt, nickel, or iron, and a surface layer made of a cemented carbide material. This multilayer structure enhances wear and corrosion resistance, making it suitable for demanding applications.
Career Highlights
David A. Lee is currently employed at Kennametal Inc., a company renowned for its advanced materials and tooling solutions. His work at Kennametal has allowed him to apply his innovative ideas in a practical setting, contributing to the development of cutting-edge materials that meet industry needs.
Collaborations
Throughout his career, David has collaborated with talented individuals such as Heidi Lynette De Villiers-Lovelock and Danie Jacobus Dewet. These collaborations have fostered an environment of innovation and creativity, leading to the successful development of new technologies.
Conclusion
David A. Lee's contributions to the field of materials