Company Filing History:
16 out of 20 
4 out of 7 
2 out of 203 
Years Active: 2001-2025
Title: Andrew D. Sappey: Innovator in Tunable Diode Laser Technology
Introduction
Andrew D. Sappey, based in Lakewood, Colorado, is a notable inventor with an impressive portfolio of 22 patents. His innovations primarily focus on advanced technologies in the field of tunable diode laser absorption spectroscopy (TDLAS), contributing significantly to both academic and industrial applications.
Latest Patents
Among his latest patents, Andrew has developed a novel TDLAS architecture for widely spaced wavelengths. This system measures the concentration of target species using two tunable diode lasers operating at different wavelengths, each corresponding to unique absorption lines of the target species. The system incorporates specialized optical fibers that enhance measurement accuracy by ensuring that each fiber only supports the respective wavelength assigned to it. Additionally, he holds a patent for a method and apparatus designed to monitor port blockage in TDLAS measurements, particularly in challenging environments. This TDLAS optical head is engineered for integration into process chambers and optimizes the transmission and reception of laser beams, thereby ensuring precise monitoring.
Career Highlights
Andrew has had a dynamic career, with significant contributions while working at Zolo Technologies, Inc. and Onpoint Technologies, LLC. His expertise in laser technology and absorption spectroscopy has made him a valuable asset in developing innovative solutions for complex measurement challenges.
Collaborations
Throughout his career, Andrew has collaborated with various experts in the field, including Bernard Patrick Masterson and Henrik Hofvander. These partnerships have played a crucial role in the advancement of his research and the successful development of his patented technologies.
Conclusion
Andrew D. Sappey's continued contributions to the field of tunable diode laser technology exemplify his commitment to innovation. His groundbreaking patents not only enhance measurement capabilities in environmental and industrial applications but also reflect his dedication to pushing the boundaries of current technology. As he continues to develop new solutions, his work remains a significant influence in the realm of laser research and applications.