Location History:
- Wilmington, DE (US) (1976 - 1977)
- Chadds Ford, PA (US) (1989 - 2000)
- Claremont, CA (US) (2004)
Company Filing History:
17 out of 16,338 
1 out of 27 Years Active: 1976-2004
Title: Melvin H Johnson: Innovator in Thermal Processing and Yarn Bulking Technologies
Introduction
Melvin H Johnson is a notable inventor based in Chadds Ford, PA (US). He holds a total of 18 patents, showcasing his significant contributions to the fields of thermal processing and yarn bulking technologies. His innovative approaches have led to advancements that benefit various industries.
Latest Patents
Among his latest patents is a method and apparatus for thermal processing a photosensitive element. This invention involves heating a composition layer on a flexible substrate to a melt temperature while maintaining the substrate at a temperature below this melt temperature. The process includes pressing a heated absorbent layer against the heated composition layer and repeating these steps for multiple cycles. Additionally, the method incorporates cooling the flexible substrate and layer laminate on each cycle to ensure optimal temperature control.
Another significant patent is the single impingement bulking jet. This invention pertains to a non-interlacing expirating yarn bulker, which features a body with an enclosed yarn passage. The design includes an inlet region, a throat region, and an expanding region, with a single pressurized fluid channel intersecting the yarn passage in the throat region. The cross-sectional areas at defined locations within the yarn passage exhibit predetermined relationships, enhancing the efficiency of the yarn bulking process.
Career Highlights
Throughout his career, Melvin H Johnson has worked with prominent companies, including E.I. DuPont De Nemours and Company and E. I. Du Pont De Nemours. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations.
Collaborations
Melvin has collaborated with notable individuals in his field, including Frank M Willis and Joseph Anthony Perrotto. These partnerships have fostered a creative environment that has led to the development of his patented technologies.
Conclusion
Melvin H Johnson's contributions to thermal processing and yarn bulking technologies highlight his innovative spirit and dedication to advancing these fields. His patents reflect a commitment to improving processes and products, making a lasting impact on the industry.
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.