Location History:
- Gloucester, CA (2001 - 2013)
- Ottawa, CA (2010 - 2014)
Company Filing History:
12 out of 1,012 
2 out of 14 
1 out of 14 Years Active: 2001-2025
Title: The Innovative Contributions of Dan-Xia Xu
Introduction
Dan-Xia Xu is a prominent inventor based in Gloucester, CA, known for his significant contributions to the field of optical sensing and waveguide technology. With a total of 13 patents to his name, Xu has developed groundbreaking techniques that enhance molecular sensing and optical systems.
Latest Patents
Among his latest patents is the "Grating-based evanescent field molecular sensor using a thin silicon waveguide layer." This innovative technique employs a detection scheme that couples a polarized beam to a single mode of a waveguide, allowing for high sensitivity in molecular sensing. The design utilizes a silicon on insulator (SOI) wafer with a carefully chosen waveguide thickness, ensuring strong interaction with the evanescent field. Another notable patent is the "Composite subwavelength-structured waveguide in optical systems." This invention features waveguide cores made of subwavelength grating, enabling light transmission without diffraction. The design allows for the manipulation of various optical properties, making it a versatile component in optical communication systems.
Career Highlights
Dan-Xia Xu has worked with esteemed organizations such as the National Research Council of Canada and Enablence Inc. His experience in these institutions has allowed him to refine his skills and contribute to cutting-edge research in optical technologies.
Collaborations
Throughout his career, Xu has collaborated with notable colleagues, including Siegfried
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.