Location History:
- Ballston Lake, NY (US) (1976 - 1980)
- Salem, VA (US) (1981 - 2000)
Company Filing History:
25 out of 51,873 
2 out of 144 
Years Active: 1976-2000
Title: Paul M. Espelage: Innovator in High Power Motor Drive Technology
Introduction
Paul M. Espelage is a distinguished inventor based in Salem, VA, known for his significant contributions to the field of high power motor drive technology. With an impressive portfolio of 27 patents, his work has influenced various industries, particularly in power electronics and control systems.
Latest Patents
Among his latest innovations, Espelage's patent for a Five Level High Power Motor Drive Converter and Control System stands out. This invention describes a high power motor drive converter that includes a five-level hybrid NPC output power conversion stage. It features three NPC phase bridges receiving power from respective direct current buses and isolated split series-connected DC capacitor banks. The sophisticated controller adapts switch position selections using advanced modulation techniques, ensuring effective control of neutral voltages.
Another notable patent is for Voltage Clamp Snubbers for a Three-Level Converter. This invention focuses on the design of a three-level NPC (Neutral Point Clamped) converter that incorporates a phase leg with multiple series-coupled electrical switches. The inclusion of inner and outer switch snubber capacitors, diodes, and resistors enhances the converter's efficiency and reliability, making significant strides in power conversion technology.
Career Highlights
Espelage has worked with leading companies such as General Electric Company and General Electric Corporation GmbH. His experiences at these firms have been integral in developing his innovative approaches and technical expertise. His patents reflect his commitment to advancing the technology behind motor drives and power systems.
Collaborations
Throughout his career, Espelage has collaborated with esteemed colleagues such as Loren H. Walker and David L. Lippitt. These partnerships have contributed to the successful advancement of his projects and have played an important role in the development of cutting-edge technologies in the field.
Conclusion
In summary, Paul M. Espelage is a prominent figure in the innovations of high power motor drive technology. His extensive patent portfolio and collaborations with notable institutions underscore his influence in the industry. As he continues to push the boundaries of power electronics, his work promises to impact future advancements within the field.
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.