Company Filing History:
5 out of 16,076 
1 out of 9 Years Active: 1991-2013
Title: The Innovative Contributions of Donald W. Rule
Introduction
Donald W. Rule is a notable inventor based in Silver Spring, MD, who has made significant contributions to the field of technology through his innovative patents. With a total of six patents to his name, Rule has demonstrated a commitment to advancing technology and addressing complex challenges in various applications.
Latest Patents
Among his latest inventions is the "Semiconductor Photocapacitor Device." This device is designed to respond to photons with at least a specified energy. It consists of a first portion made of a photocapacitive material and a second portion composed of a non-photocapacitive material, with a depletion region situated between the two. The materials used have distinct Fermi-energy differences, which play a crucial role in the device's functionality.
Another significant invention is the "Dynamically Variable Metamaterial Lens and Method." This lens is constructed from actively tunable electromagnetic metamaterial cells and operates across a range of electromagnetic radiation, including radio frequency waves, microwaves, terahertz waves, near-infrared waves, infrared waves, and visible waves. The lens allows for changes in focal length at selected frequencies, providing versatility in its applications.
Career Highlights
Throughout his career, Donald W. Rule has worked with esteemed organizations, including the United States Navy and Sti Optronics, Inc. His work in these companies has contributed to the development of advanced technologies and innovative solutions.
Collaborations
Rule has collaborated with notable individuals in his field, including Kevin A. Boulais and Francisco Santiago. These partnerships have likely fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Donald W. Rule's contributions to technology through his patents reflect his innovative spirit and dedication to advancing the field. His work continues to influence various applications, showcasing the importance of creativity and collaboration in driving technological progress.
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.