Location History:
- South Wirral, GB (2002)
- Chester, GB (1997 - 2021)
Company Filing History:
7 out of 88 
5 out of 23 
2 out of 2 Years Active: 1997-2021
Title: Inventor Spotlight: Stephen Leonard Cook
Introduction: Stephen Leonard Cook, a prominent inventor based in Chester, GB, has made significant contributions to the field of chemical innovations. With an impressive portfolio of 14 patents, Cook has focused on developing novel compounds that enhance fuel and lubricant applications, showcasing his expertise and ingenuity.
Latest Patents: Among Cook's recent inventions are groundbreaking quaternary ammonium compounds designed as fuel or lubricant additives. One patent outlines a quaternary ammonium compound formula (X), where R, R', and R'' are each individually an optionally substituted alkyl, alkenyl, or aryl group, with R also including an optionally substituted hydrocarbyl moiety consisting of at least 5 carbon atoms. Another notable invention involves cyclic quaternary ammonium salts with a formula that allows R and R' to be independently selected from alkyl, alkenyl, or aryl groups containing fewer than 8 carbon atoms. These developments emphasize their application as effective diesel fuel additives.
Career Highlights: Stephen Leonard Cook has significantly impacted the industry through his roles at notable companies such as Innospec Limited and The Associated Octel Company Limited. His tenure at these organizations has been marked by innovative advancements in the formulation of chemical additives, reflecting his commitment to enhancing fuel efficiency and performance.
Collaborations: Throughout his career, Cook has collaborated with talented professionals in the industry, including coworkers Jacqueline Reid and Paul Joseph Richards. These partnerships have fostered an environment of creativity and innovation, resulting in the successful development of numerous patented technologies.
Conclusion: With 14 patents to his name, Stephen Leonard Cook exemplifies the spirit of innovation. His recent works on quaternary ammonium compounds as fuel and lubricant additives not only showcase his technical prowess but also his dedication to addressing contemporary challenges in energy efficiency. Cook's contributions continue to shape the landscape of chemical innovations, making him a noteworthy figure in the realm of invention.