This inventor holds 19 USPTO granted patents and 2 published patent applications and 9 EPO patents. Top assignees: Hamilton Sundstrand Corporation, Sundstrand Corporation. Active years: 1991-2026.
Company Filing History:
15 out of 4,803 
4 out of 1,372 Years Active: 1991-2026
Title: Innovations and Patents of John F Defenbaugh
Introduction
John F Defenbaugh, an accomplished inventor based in Rockford, IL, holds an impressive portfolio of 18 patents. His contributions to power supply systems demonstrate significant advancements in electrical engineering and have impacted various applications in the industry.
Latest Patents
Among his notable inventions are two recent patents that showcase his expertise in enhancing power supply efficiency. The first, titled "Parallel Channel Voltage Feedback," details a power supply system comprising first and second generators monitored by current sensors. This system's innovative controller analyzes current signals to determine voltage foldback values, enabling the first DC power supply to reduce its output voltage intelligently.
The second patent, "Passive Power Sharing of Paralleled Sources," outlines a system for the efficient distribution of power among parallel sources. This invention uses a first and a second DC power supply with rectifier circuits that are interconnected. The first generator controller plays a crucial role by analyzing current signals to adjust voltage outputs, ensuring balanced operation between the power supplies.
Career Highlights
Throughout his career, John has made significant contributions while working with prominent companies like Hamilton Sundstrand Corporation and Sundstrand Corporation. His tenure at these organizations has allowed him to apply his knowledge and skills, resulting in the development of innovative solutions in power supply systems.
Collaborations
John F Defenbaugh has collaborated with several talented professionals in his field, including Vijay K Maddali and Michael C Harke. These partnerships have fostered an environment of innovation and creativity, leading to the successful development of his patented technologies.
Conclusion
John F Defenbaugh is a prolific inventor whose work has advanced the electrical engineering field significantly. His dedication to innovation is evident in his 18 patents and ongoing contributions to power supply systems. As he continues to develop new technologies, his impact on the industry remains noteworthy and inspiring.