This inventor holds 9 USPTO granted patents. Top assignee: General Electric Company. Active years: 1976-2002.
Location History:
- Cincinnati, OH (US) (1976 - 1978)
- Fairfield, OH (US) (1978 - 2002)
Company Filing History:
Years Active: 1976-2002
Title: **David R. Chang: Innovator in Ceramic Matrix Composites**
Introduction
David R. Chang, an accomplished inventor based in Cincinnati, OH, has made significant contributions to the field of materials science, particularly focusing on ceramic matrix composites (CMCs). With a portfolio of nine patents to his name, he has become a notable figure in innovation, particularly through his recent advancements in methods for core removal in CMCs.
Latest Patents
One of David R. Chang’s key inventions is the "Method of Removing Cores from Ceramic Matrix Composite Articles." This innovative method offers two distinct embodiments for removing cores used to form internal cavities within CMC components. In the first embodiment, the core is extracted from a fully densified CMC component by applying heat to a temperature that breaks down the core while ensuring the integrity of the component itself. The second embodiment caters to components that are only partially densified, wherein a coating material is applied that is resistant to a specific leaching compound capable of dissolving the core. This method allows for the core's removal without damaging the internal surfaces of the component, presenting a pivotal advancement in manufacturing techniques for advanced composite materials.
Career Highlights
David's association with General Electric Company reflects his dedication to innovation within a prestigious institution known for its commitment to technology and research. Throughout his career, he has focused on enhancing the functionality and durability of materials through innovative engineering solutions.
Collaborations
In his endeavors, David has collaborated with esteemed professionals such as John J. Grisik and Thomas J. Dunyak. These collaborations have not only enriched his research but have also propelled advancements in the development and application of ceramic matrix composites.
Conclusion
David R. Chang stands out as a prominent inventor whose expertise in ceramic matrix composites has led to impactful innovations. With his nine patents cementing his reputation, he continues to push the boundaries of material science, contributing significantly to the industry and inspiring future generations of inventors.