Location History:
- Chicago, IL (US) (1977)
- Mount Prospect, IL (US) (1978)
- Glenview, IL (US) (1982 - 1986)
- Boca Raton, FL (US) (1991 - 1993)
Company Filing History:
Years Active: 1977-1993
Title: The Innovations of Albert L. Lehman
Introduction
Albert L. Lehman is a notable inventor based in Glenview, IL (US), recognized for his contributions to the field of metallurgy. He holds a total of 8 patents, showcasing his innovative spirit and dedication to advancing steel manufacturing processes.
Latest Patents
Among his latest patents is the invention titled "Nitrogen steel and method of manufacture thereof." This patent describes a low alloy steel with a medium carbon content, which contains less than about 5% manganese and has hardenability approaching unity due to the presence of nitrogen in amounts ranging from about 100-400 ppm. The method of manufacturing this steel includes a unique processing step where nitrogen gas is bubbled through the molten steel during the late stages of production. Another significant patent is for a "Low alloy steel product," which details a steel product, such as a medium carbon die block, that exhibits excellent impact, ductility, and physical properties. This product also features lower than normal sulfur contents while maintaining machinability equal to or better than higher sulfur levels, characterized by a reduced level of stringer-type inclusions.
Career Highlights
Albert L. Lehman has made significant strides in his career, particularly through his work at A. Finkl & Sons Co. His innovative approaches to steel manufacturing have not only advanced the industry but have also set new standards for quality and performance in steel products.
Collaborations
Throughout his career, Lehman has collaborated with notable colleagues, including Charles W. Finkl and Herbert S. Philbrick, Jr. These partnerships have fostered an environment of creativity and innovation, leading to the development of groundbreaking technologies in metallurgy.
Conclusion
Albert L. Lehman's contributions to the field of steel manufacturing through his patents and collaborations highlight his role as a significant inventor. His work continues to influence the industry and inspire future innovations in metallurgy.