Company Filing History:
6 out of 1,437 
2 out of 16,338 
1 out of 2,202 
Years Active: 1983-1997
Title: The Innovations of Hou-min Chang
Introduction
Hou-min Chang is a notable inventor based in Raleigh, NC, with a significant contribution to the field of chemical processing. He holds a total of seven patents, showcasing his expertise and innovative spirit in developing effective treatment processes for various substrates.
Latest Patents
Among his latest patents is a method of oxidatively treating a substrate with an equilibrium mixture. This process involves treating lignocellulosic pulp or cellulosic pulps with a mixed peracid solution, which includes percarboxylic acid and Caro's acid. This innovative approach results in a higher conversion rate of active oxygen in hydrogen peroxide, providing an inexpensive and effective delignification and bleaching solution. Another significant patent is the process for preparing a bleaching liquor containing percarboxylic acid, which similarly enhances the treatment of substrates for improved efficiency.
Career Highlights
Throughout his career, Hou-min Chang has worked with esteemed organizations such as North Carolina State University and E.I. du Pont de Nemours and Company. His work in these institutions has allowed him to advance his research and contribute to the development of innovative chemical processes.
Collaborations
He has collaborated with notable colleagues, including Thomas K. Kirk and Hasan Jameel, further enriching his research and innovation endeavors.
Conclusion
Hou-min Chang's contributions to the field of chemical processing through his patents and collaborations highlight his role as a significant inventor. His innovative methods continue to impact the industry positively.