Location History:
- Houston, TX (US) (2001)
- Cincinnati, OH (US) (2005)
- Pearland, TX (US) (2003 - 2006)
- Mason, OH (US) (2006)
- New Braunfels, TX (US) (2018 - 2020)
Company Filing History:
7 out of 412 
2 out of 832,680 Years Active: 2001-2020
Title: Innovator Spotlight: Clifford C. Lee
Introduction
Clifford C. Lee, an accomplished inventor based in Pearland, TX, has made significant contributions to the field of polymer chemistry. With a total of 7 patents to his name, he demonstrates a commitment to advancing innovative solutions in the chemical industry.
Latest Patents
One of Lee's most notable inventions is the development of catalysts containing at least one heterocyclic ligand to improve catalyst performance in olefin polymerization. This invention features a non-metallocene catalyst made up of a complex that includes various ligands coordinated to a transition metal. The catalyst is designed to enhance efficiency by utilizing substituents bonded through heteroatoms such as oxygen or sulfur. Additionally, this complex involves Group 3 to 10 transition or lanthanide metals, alongside anionic or neutral ligands, ensuring a net zero charge for the complex. The invention also outlines methods for preparing the catalyst and utilizing it for olefin polymerization.
Another key patent involves the creation of multi-phase polypropylene compositions. This innovation offers improved multi-phase polypropylene composites that consist of a polypropylene base resin, alongside a non-compatible dispersed phase that can either be a polymer or filler material. This advanced composition is further enhanced by a propylene-ethylene copolymer grafted with a carboxylic acid or its derivative, marking a significant step forward in material performance.
Career Highlights
Clifford C. Lee is currently affiliated with Equistar Chemicals, LP, a leader in the chemical manufacturing sector. His work at the company has enabled him to focus on pioneering advancements that not only benefit the company but also contribute to broader applications across industries.
Collaborations
Throughout his career, Lee has had the pleasure of collaborating with notable coworkers Mark P. Mack and Shaotian Wang. These professional relationships have fostered a collaborative environment that encourages innovative thinking and problem-solving within the realm of chemical engineering.
Conclusion
Clifford C. Lee stands out as an influential inventor in the field of polymer chemistry. His work, characterized by inventive catalysts and improved polypropylene composites, demonstrates his dedication to innovation. As he continues to develop new technologies at Equistar Chemicals, his contributions will undoubtedly shape the future of chemical applications in various industries.
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.