Company Filing History:
2 out of 133 
1 out of 1 Years Active: 2004-2013
Title: Mark Stuhldreher: Innovator in Hydraulic Systems
Introduction
Mark Stuhldreher is an accomplished inventor based in Pinckney, MI (US). He has made significant contributions to the field of hydraulic systems, holding a total of 3 patents. His innovative designs focus on enhancing vehicle performance and efficiency.
Latest Patents
Stuhldreher's latest patents include an on-demand power brake system and method. This hydraulic brake system features a piston that separates two pressure chambers within a cylinder bore. A movable valve within the piston bore can shift between three positions, allowing for fluid communication with a low-pressure fluid supply or a high-pressure fluid supply. This design enables boosted braking pressure to be applied to a vehicle brake, particularly beneficial during engine-off operation in hybrid vehicles.
Another notable patent is the engine-off power steering system. This center-closed power steering system provides assistance even when the engine is off, contributing to reduced fuel consumption. The system includes a hydraulic pump driven by the engine, a high-pressure accumulator, and a steering gearbox. The innovative valve design allows for smooth transitions in fluid flow, enhancing the driver's experience.
Career Highlights
Throughout his career, Stuhldreher has worked with prominent organizations, including the United States Environmental Protection Agency. His work has focused on developing technologies that improve vehicle efficiency and reduce environmental impact.
Collaborations
Stuhldreher has collaborated with notable professionals in his field, including Charles L. Gray, Jr. and Andrew James Moskalik. These partnerships have contributed to the advancement of his innovative projects.
Conclusion
Mark Stuhldreher is a notable inventor whose work in hydraulic systems has led to significant advancements in vehicle technology. His patents reflect a commitment to innovation and efficiency in automotive engineering.
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.