Company Filing History:
5 out of 4,197 
1 out of 30,943 
1 out of 788 
Years Active: 1977-2001
Title: John D Margerum: Innovator in Battery and Film Technologies
Introduction
John D Margerum is a notable inventor based in Woodland Hills, CA (US). He has made significant contributions to the fields of battery fabrication and polymer dispersed liquid crystal film devices. With a total of 6 patents, his work showcases innovative methods that enhance the performance and efficiency of these technologies.
Latest Patents
One of his latest patents is a battery fabrication method using supercritical carbon dioxide. This method involves extracting plasticizer through phase shifting of supercritical carbon dioxide, which encourages the formation of a solid electrolyte interphase layer during the fabrication process. Another significant patent is related to polymer dispersed liquid crystal film devices. This invention outlines a method for forming a PDLC film by creating a solution of liquid crystal dissolved in a monomer, followed by photopolymerization. The process allows for precise control over the size of liquid crystal bubbles, which directly affects the film's optical properties and performance characteristics.
Career Highlights
Throughout his career, John D Margerum has worked with prominent companies such as Hughes Aircraft Company and GM Global Technology Operations LLC. His experience in these organizations has contributed to his expertise in developing advanced technologies.
Collaborations
John has collaborated with notable coworkers, including Anna M Lackner and Elena Ramos, who have contributed to his innovative projects.
Conclusion
John D Margerum's contributions to battery and film technologies highlight his role as a leading inventor in these fields. His innovative patents and career achievements reflect his commitment to advancing technology and improving product performance.
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.