Company Filing History:
3 out of 3 
1 out of 384 
1 out of 1,907 
Years Active: 2007-2014
Title: The Innovative Contributions of David Markham Drury
Introduction
David Markham Drury is a notable inventor based in Pittsburgh, PA, with a significant portfolio of five patents. His work primarily focuses on advancements in optical switching systems and network data transmission technologies. Drury's innovative contributions have made a substantial impact in the field of optical communications.
Latest Patents
One of Drury's latest patents is titled "System architecture for an optical switch using wavelength, fiber and polarization addressing." This invention discloses systems for switching optical signals, which include a splitter and a plurality of polarizing filters. The splitter is designed to receive emitted light and duplicate it into multiple light copies. Each polarizing filter is configured to receive at least one of these light copies, allowing light with a similar polarization to pass through while filtering out others. Another significant patent is "Optical network systems and methods for operating same." This system facilitates the transmission of data packets over a network, incorporating first and second nodes with transceivers that operate at assigned wavelengths. This design allows for efficient data packet management and transmission across optical fibers.
Career Highlights
Throughout his career, Drury has worked with prominent companies such as Accipiter Systems, Inc. and Ericsson AB. His experience in these organizations has contributed to his expertise in optical technologies and network systems.
Collaborations
Drury has collaborated with notable professionals in his field, including Robert Craig Campbell and Richard E. Huber. These collaborations have likely enhanced his innovative capabilities and contributed to the development of his patents.
Conclusion
David Markham Drury's contributions to optical switching and network systems exemplify his role as a leading inventor in the field. His patents reflect a commitment to advancing technology and improving data transmission methods.