This inventor holds 5 USPTO granted patents and 4 published patent applications. Top assignees: Physical Sciences, Inc., Confluent Photonics Co., Confluent Photonics Corporation. Active years: 1997-2014.
Company Filing History:
2 out of 87 
1 out of 1 
1 out of 13 Years Active: 1997-2014
Title: The Innovations of William J Kessler
Introduction
William J Kessler is a notable inventor based in Groton, MA (US), recognized for his contributions to optical technologies. He holds a total of five patents, showcasing his expertise and innovative spirit in the field. His work has significantly impacted optical communication and imaging technologies.
Latest Patents
Kessler's latest patents include groundbreaking inventions such as the Optical Coherence Tomography (OCT) Freeze Drying Microscopy. This invention determines the critical temperature of a product during freeze drying by imaging it using optical coherence tomography. The product is freeze dried while measuring its temperature, identifying the critical temperature at which structural events occur. Another significant patent is the Miniature Monolithic Optical Demultiplexer, which comprises a dispersive optical element and a wavelength filter array. This device can be fabricated using micro- and nano-scale techniques common in the semiconductor industry. It is designed for use in optical communication networks, facilitating essential functions such as switching, adding, dropping, and manipulating optical signals entirely in the optical domain.
Career Highlights
Throughout his career, Kessler has worked with reputable companies, including Physical Sciences, Inc. and Confluent Photonics Company. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in optical technologies.
Collaborations
Kessler has collaborated with notable individuals in his field, including Steven J Davis and Michael B Frish. These collaborations have likely enriched his work and led to further innovations in optical technologies.
Conclusion
William J Kessler's contributions to the field of optical technology through his patents and collaborations highlight his role as a significant inventor. His work continues to influence advancements in optical communication and imaging, showcasing the importance of innovation in technology.