Location History:
- US (1981)
- Los Altos, CA (US) (1977 - 1989)
- El Monte, CA (US) (2011)
Company Filing History:
23 out of 2,546 
4 out of 7 
1 out of 41 
Years Active: 1977-2011
Title: Innovations and Contributions of John A Parker
Introduction
John A Parker, based in Los Altos, CA, is a prolific inventor with an impressive portfolio of 29 patents. His work spans various fields, showcasing his expertise and innovative spirit.
Latest Patents
Among Parker's latest contributions are notable patents that include a method for producing ammonium polyphosphate and advancements in polymer chemistry. The method for producing ammonium polyphosphate describes a process of continuously reacting urea and polyphosphoric acid in a pre-mixed slurry at controlled temperatures of about 315°C, thereby forming ammonium polyphosphate in an optimized environment. This invention utilizes a screw-type extruder, ensuring minimal handling and allowing for the ground material to be achieved easily.
Additionally, Parker's work on aromatic cyclotriphosphazenes involves the reaction of 4-aminophenoxy cyclotriphosphazenes with maleic anhydride, leading to the production of maleamic acids and subsequent polymerization of maleimides. These newly developed polymers possess remarkable heat and fire-resistant properties, making them ideal for applications such as fabric impregnation.
Career Highlights
Throughout his career, John A Parker has worked with significant organizations, including the United States of America as represented by the Administrator and Thermal Science, Inc. His involvement in these institutions has facilitated the development and commercialization of his groundbreaking innovations.
Collaborations
Parker has collaborated with notable coworkers, including George M Fohlen and Ming-ta S Hsu, who have supported his research efforts and contributed to refining his inventions. These collaborations have allowed for a diverse exchange of ideas, leading to enhanced innovations in their fields of expertise.
Conclusion
John A Parker stands out as an influential inventor, making substantial contributions through his patents and collaborative work. His commitment to innovation not only advances the field of chemistry but also sets a benchmark for future inventors aiming to create impactful solutions.
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.