Company Filing History:
Years Active: 1992-2000
Title: John William Yerkes: Innovator in Photovoltaic Technology
Introduction
John William Yerkes is a notable inventor based in Fall City, WA (US). He has made significant contributions to the field of photovoltaic technology, holding a total of 2 patents. His work focuses on enhancing the efficiency of solar energy systems, particularly for space applications.
Latest Patents
Yerkes' latest patents include innovative designs for photovoltaic cells. One of his patents describes "Photovoltaic cells having a concentrating coverglass with broadened." This invention features a concentrating coverglass that allows for efficient power generation, providing higher specific powers for space power arrays. The design addresses weight penalties by combining the functions of a solar concentrator and protective coverglass into a single element. A preferred frustoconical lens achieves a concentration ratio of about 4.5 at a thickness of approximately 1.0 mm. This technology enables efficient space power arrays with a relatively wide tracking angle tolerance of up to about ±5 degrees, allowing for heavier payloads in satellite operating systems compared to traditional designs.
Another significant patent is for a "Panel for solar concentrators and tandem cell units." This invention involves solar cells, particularly GaAs/GaSb tandem solar cells, mounted on a lightweight honeycomb panel. The cells are aligned optically with solar energy concentrators mounted on the front panel side. The design includes metallized surfaces of a heat spreader attached to the rear panel side, with a circuit carrier that has conductors bonded to metallization islands on one side of the heat spreader.
Career Highlights
John William Yerkes is currently associated with The Boeing Company, where he continues to innovate in the field of solar energy technology. His work has contributed to advancements in satellite power systems, enhancing their efficiency and payload capabilities.
Collaborations
Yerkes has collaborated with notable colleagues, including Lewis M Fraas and Nurullah Mansoori, who have also made significant contributions to the field of photovoltaic technology.
Conclusion
John William Yerkes is a distinguished inventor whose work in photovoltaic technology has paved the way for advancements in solar energy systems, particularly for space applications. His innovative patents reflect a commitment to enhancing efficiency and functionality in this critical field.