Location History:
- Wickliffe, OH (US) (1987 - 2001)
- Painesville, OH (US) (1999 - 2005)
Company Filing History:
Years Active: 1987-2005
Title: The Innovative Contributions of Curtis R. Scharf
Introduction
Curtis R. Scharf is a notable inventor based in Wickliffe, Ohio, with a remarkable portfolio of 17 patents. His work primarily focuses on advancements in lubricating compositions and grease additives, showcasing his expertise in the field of lubrication technology.
Latest Patents
One of Scharf's latest patents involves a lubricating composition that comprises at least 30% by weight of a mineral oil with a kinematic viscosity of less than 8 cSt at 100°C. This composition includes 15% to 40% by weight of at least one polymer and up to 30% by weight of a fluidizing agent. The invention ensures that when the fluidizing agent is a polyα-olefin, it is present in an amount up to 12% by weight, resulting in a lubricating composition with a shear loss of less than 15% in the 20-hour taper bearing shear test. This combination of components provides excellent low and high-temperature properties, particularly when used with mineral oils, and improves oxidation resistance.
Another significant patent by Scharf focuses on a functionalized polymer as a grease additive. This invention describes a grease made from an oil of lubricating viscosity, a polyolefin with grafted acid functionality, and a metallic species that interacts with the acid functionality to enhance rheological properties. The inclusion of a co-thickening agent and the metallic species can create a gelled overbased material, particularly an overbased carboxylate, which further improves the performance of the grease.
Career Highlights
Scharf's career is marked by his contributions to The Lubrizol Corporation, where he has played a pivotal role in developing innovative lubrication solutions. His extensive experience and knowledge in the field have made him a valuable asset to the company.
Collaborations
Throughout his career, Scharf has collaborated with notable colleagues, including Roger L. Sowerby and Robert C. Richardson. These collaborations have likely contributed to the advancement of his inventions and the overall success of his projects.
Conclusion
Curtis R. Scharf's innovative work in lubricating compositions and grease additives has significantly impacted the field of lubrication technology. His patents reflect a commitment to improving performance and efficiency in lubrication 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.