Location History:
- Dayton, OH (US) (1976 - 1987)
- Kettering, OH (US) (1982 - 1991)
Company Filing History:
Years Active: 1976-1991
Title: **The Innovative Mind of Richard N. Lehnhoff**
Introduction
Richard N. Lehnhoff, based in Kettering, Ohio, is a prominent inventor with a total of 13 patents to his name. His work primarily focuses on advancements in motor drive technology, contributing significantly to the field with his innovative electrical engineering solutions.
Latest Patents
Among his latest patents, Lehnhoff has developed a "Current Controlled Full Wave Transistor Bridge Inverter." This invention introduces a sophisticated multiple-phase full wave motor drive control circuit that ensures transformer isolation between the base drive power supply and the on/off logic circuits. Notably, the design features a single current regulation circuit managing all inverter transistors, enhancing efficiency and control in operation. Furthermore, a separate transformer for each phase helps balance the load during various operational conditions.
Another remarkable innovation is his work on "Load-Based Control of an AC Motor." This patent outlines a method that utilizes iterative computations to accurately determine motor load. Beginning with an initialized load term, the invention enables effective motor operation by adjusting voltage and frequency based on real-time load analysis. This continuous assessment ensures optimal performance under varying conditions, marking a leap forward in motor control technology.
Career Highlights
Lehnhoff serves as an inventor at GM Global Technology Operations LLC, a subsidiary known for driving innovation in the automotive industry. His contributions to the company reflect a commitment to enhancing the efficiency of electric and hybrid vehicle technologies, making significant strides in the realm of electric motor control systems.
Collaborations
Throughout his career, Richard N. Lehnhoff has collaborated with fellow innovators such as Robert J. Disser and Jack W. Savage. These partnerships have fostered a rich environment for knowledge exchange and innovation, further propelling the advancements in electrical engineering that Lehnhoff is known for.
Conclusion
Richard N. Lehnhoff's dedication to innovation in electrical engineering is evident through his extensive patent portfolio and contributions to GM Global Technology Operations LLC. His groundbreaking work in motor control technology not only showcases his ingenuity but also reinforces his status as a significant contributor to modern engineering solutions. As the industry continues to evolve, Lehnhoff’s inventions are sure to play a pivotal role in the advancement of electric vehicle technologies.
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.