Company Filing History:
5 out of 328 
4 out of 141 
3 out of 7 
Years Active: 2002-2025
Title: An Insight into the Innovations of Inventor C. Michael Hoff
Introduction
C. Michael Hoff, an innovative inventor based in Boxborough, MA, has made significant contributions to the field of energy storage with a portfolio of 14 patents. His inventions reflect a commitment to enhancing the efficiency and reliability of energy systems, showcasing his expertise in electrical engineering and battery technology.
Latest Patents
One of Hoff's latest patents is the "Grid energy storage system featuring massively parallel-connected cells." This invention presents a system architecture designed for grid electrical energy storage, utilizing numerous individual cells arranged in parallel. The architecture not only simplifies the overall design by reducing the number of parts but also enhances reliability, service life, and energy capacity compared to traditional multi-parallel string architectures.
Another notable patent is the "Control method for disconnecting switches integrated in series-connected batteries." This system employs controllable switches to isolate a series of batteries from an external circuit in response to specific fault conditions. By synchronously transitioning the switches between states, the invention allows for the use of switches with lower voltage ratings, consequently reducing costs, while ensuring a uniform distribution of voltage among the battery system for consistent operation.
Career Highlights
Hoff has had a notable career with significant stints at American Power Conversion Corporation and A123 Systems LLC. His experiences at these companies have likely influenced his innovative approaches and designs in energy storage technologies, positioning him as a leader in the field.
Collaborations
Throughout his career, C. Michael Hoff has collaborated with other talented professionals, including James E. Nelson and Daniel C. Cohen. These collaborations have likely fostered an environment of creativity and innovation, enabling the development of advanced energy solutions that benefit from collective expertise.
Conclusion
C. Michael Hoff's contributions to the field of energy storage through his numerous patents highlight his dedication to innovation and improvement in energy systems. His inventive spirit and collaborative efforts continue to pave the way for advancements in electrical energy technology, making him a prominent figure in the field.