Location History:
- Richmond, VA (US) (2023)
- Henrico, VA (US) (2024)
Company Filing History:
Years Active: 2023-2025
Title: Leah Donham: Innovator in Lubricating Compositions
Introduction
Leah Donham is a prominent inventor based in Richmond, VA (US). She has made significant contributions to the field of lubricating compositions, particularly for medium and heavy-duty diesel engines. With a total of 4 patents to her name, her work focuses on enhancing the performance and longevity of engine oils.
Latest Patents
One of Leah's latest patents is titled "Antiwear systems for improved wear in medium and/or heavy duty diesel engines." This patent discusses lubricating compositions that achieve good valve train wear while maintaining low levels of phosphorus and zinc. The innovative antiwear system utilizes overbased zinc dihydrocarbyl dithiophosphates with a specific average degree of branching and hydrocarbyl groups derived from secondary alcohols.
Another notable patent is "Dispersant and detergent systems for improved motor oil performance." This invention relates to passenger car motor oil compositions that incorporate select dispersant and detergent systems. These systems are designed to improve deposits, sludge, oxidation, and wear when using a blend of API Group II base oils with one or more API Group III and/or API Group IV base oils. The surprising performance achieved with higher amounts of API Group II base oils is a significant advancement in the field.
Career Highlights
Leah Donham is currently employed at Afton Chemical Corporation, where she continues to innovate in the field of lubricants. Her expertise and dedication to improving engine performance have made her a valuable asset to the company.
Collaborations
Leah has collaborated with several talented individuals, including Abaigeal Ritzenthaler and Nicholas Giles. These collaborations have contributed to the development of her innovative patents and advancements in lubricating technology.
Conclusion
Leah Donham's contributions to the field of lubricating compositions demonstrate her commitment to innovation and excellence. Her patents reflect a deep understanding of engine performance and the importance of effective lubricants. Leah continues to be a driving force in her industry, paving the way for future advancements.