Company Filing History:
3 out of 886 
1 out of 27 Years Active: 1982-1983
Title: Helmut Riegger: Innovator in Shape-Memory Alloys
Introduction
Helmut Riegger is a notable inventor based in Busslingen, Switzerland. He has made significant contributions to the field of materials science, particularly in the development of shape-memory alloys. With a total of four patents to his name, Riegger's work has advanced the understanding and application of these innovative materials.
Latest Patents
One of Riegger's latest patents involves a powder metallurgical process for producing a copper-based shape-memory alloy. This process entails introducing a coarse-grained powder of pre-alloyed and/or pre-mixed powder alloys, with a grain size ranging from 0.05 to 0.8 mm, into a metal container. The container is then evacuated, sealed, and subjected to hot isostatic pressing. The resulting billet undergoes hot working to achieve the desired properties. In another embodiment, the powder is placed in a rubber tube and cold isostatically pressed before being hot isostatically pressed in a sealed cylinder with deformable walls, such as a copper cylinder. The prepared billet is then subjected to a homogenization heat treatment and hot working.
Career Highlights
Throughout his career, Helmut Riegger has worked with several prominent companies, including BBC Brown, Boveri & Company, Limited, and BBC Aktiengesellschaft Brown, Boveri & Cie. His experience in these organizations has allowed him to refine his expertise in materials engineering and innovation.
Collaborations
Riegger has collaborated with notable professionals in his field, including Keith N. Melton and Olivier Mercier. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Helmut Riegger's contributions to the field of shape-memory alloys and his innovative approaches to materials science have established him as a significant figure in his industry. His patents reflect a commitment to advancing technology and improving the functionality of materials used in various applications.