Company Filing History:
8 out of 2,001 
7 out of 61 
1 out of 21,594 
Years Active: 1994-2019
Title: Innovations and Contributions of Stephen Weinhold
Introduction
Stephen Weinhold is an accomplished inventor based in Kingsport, TN, with a total of 19 patents to his name. His cutting-edge innovations primarily focus on the development of advanced polyester polymer formulations and their applications, contributing significantly to the field of polymer technology.
Latest Patents
Among his latest patents are two notable inventions. The first is focused on polyester polymer particles that possess a controlled surface to center molecular weight gradient. This invention introduces polyester polymer particle spheroids that comprise a significant amount of terephthalic acid and its derivatives, alongside a hydroxyl component predominantly made of ethylene glycol. These particles exhibit an Intrinsic Viscosity (It.V.) of at least 0.72 dL/g, with a specific variance in viscosity from the surface to the center, which enhances their performance in various applications.
The second patent addresses polyester blends that showcase improved low-temperature toughness. This development emphasizes the use of impact modifiers and polyethylene terephthalate (PET) homopolymers, which are produced using a specialized melt phase polymerization catalyst system. This innovative approach results in polymer blends that outperform those made with traditional catalyst systems, demonstrating enhanced resilience in colder environments.
Career Highlights
Stephen has made significant contributions during his tenure at major companies in the industry, such as Eastman Chemical Company and Grupo Petrotemex S.A. de C.V. His work has not only expanded the technical capabilities of polyester materials but has also set new standards for their use in packaging applications.
Collaborations
Throughout his career, Stephen has collaborated with esteemed colleagues like Frederick Leslie Colhoun and Mary Therese Jernigan. These partnerships have fostered an environment of innovation, enabling the development of high-performance materials that meet the evolving demands of various industries.
Conclusion
In summary, Stephen Weinhold’s work and inventions represent a significant advancement in polymer technology. His innovative patents, collaborative efforts, and impactful career highlight his dedication to enhancing material performance and functionality. Stephen continues to be a vital contributor to the field, paving the way for future innovations in polyester applications.
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.