Company Filing History:
3 out of 1,321 
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1 out of 507 
Years Active: 1987-2001
Title: The Innovations of Roger D. Doherty
Introduction
Roger D. Doherty is a notable inventor based in Wynnewood, PA (US). He has made significant contributions to the field of materials science, particularly in the development of superplastically formable aluminum alloy products. With a total of 7 patents to his name, Doherty's work has advanced the capabilities of aluminum alloys in various applications.
Latest Patents
Doherty's latest patents include innovative methods for creating superplastically formable aluminum-magnesium (Al-Mg) products. One of his patents describes a method for making a superplastically formable aluminum alloy product that consists of approximately 2-3.8 wt. % magnesium, along with dispersoid-forming elements such as manganese, zirconium, and chromium. This alloy product exhibits greater than 300% elongation at a strain rate of about 0.0001-0.003/sec, with a superplastic forming temperature between 1000-1100°F. Another patent focuses on a superplastically formable Al-Mg-Si product, which consists of about 2-10 wt. % magnesium and similar dispersoid-forming elements. This product also demonstrates over 300% elongation at a strain rate of at least 0.0003/sec, with a superplastic forming temperature in the same range.
Career Highlights
Throughout his career, Roger D. Doherty has worked with prominent companies in the industry, including the Aluminum Company of America and Sps Technologies, LLC. His expertise in materials science and engineering has allowed him to contribute to the development of advanced aluminum alloys that meet the demands of modern manufacturing.
Collaborations
Doherty has collaborated with several professionals in his field, including Rishi P. Singh and John Liu. These collaborations have further enriched his work and contributed to the success of his innovative projects.
Conclusion
Roger D. Doherty's contributions to the field of aluminum alloys and superplastic forming techniques have made a significant impact on materials science. His innovative patents and career achievements highlight his role as a leading inventor in this specialized area.