Company Filing History:
32 out of 3,268 
1 out of 23 Years Active: 2004-2013
Title: **Yun-Feng Chang – Innovator in Aromatic Compound Production**
Introduction
Yun-Feng Chang is a prominent inventor based in Houston, TX, known for his contributions to the field of chemical engineering and aromatic compound production. With a remarkable portfolio of 33 patents, he continues to innovate and push the boundaries of chemical processes.
Latest Patents
One of his latest patents is centered around a sophisticated process for producing monoalkylated aromatic compounds through an alkylation reaction zone. The inventive method involves several critical steps: First, a reactive guard bed with a catalyst of BEA, MWW, or FAU framework structures is established upstream of the alkylation reaction zone. This setup ensures the removal of reactive impurities from the alkylation feed, resulting in a purified effluent. Subsequently, this effluent, along with a first catalytic particulate material consisting of MCM-56 and an alumina binder sized from 50-60 mesh, is introduced to the alkylation reaction zone under specific alkylation conditions. The catalyst material's surface area over volume ratio is precisely maintained in a range of 241 to 2867 cm-1, optimizing the alkylation process to yield high-quality monoalkylated aromatic compounds.
Career Highlights
Yun-Feng Chang has had a significant impact during his career, working with major companies, including ExxonMobil Chemical Patents Inc. His innovative work has been instrumental in advancing methods for chemical production, particularly in the area of aromatic compounds, which are essential in various industrial applications.
Collaborations
Throughout his career, Chang has collaborated with notable professionals such as Stephen Neil Vaughn and Kenneth Ray Clem. These collaborations have facilitated knowledge exchange and innovation, enhancing the quality and practicality of his inventions.
Conclusion
Yun-Feng Chang's insightful developments in aromatic compound production reflect his dedication to chemical engineering and innovation. With a strong foundation in patentable inventions, he is poised to continue making significant contributions to the field and fostering advancements that can transform industry practices.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.