Company Filing History:
1 out of 3 
1 out of 17 
1 out of 645 
Years Active: 1999-2009
Title: Harold S. Lessure: Innovator in Gas Detection Technology
Introduction
Harold S. Lessure is a notable inventor based in Pittsburgh, PA (US), recognized for his contributions to gas detection technology. With a total of 3 patents, Lessure has developed innovative methods and apparatuses that enhance the sensitivity and accuracy of gas detection systems.
Latest Patents
One of his latest patents is titled "Wide concentration range gas detection." This invention involves a method and apparatus where a first absorption measurement is made over a specific frequency interval, capturing one or more absorptions from a spectral band of interest. The first measurement is ideally near the frequency of a peak in the absorption spectrum, which provides high sensitivity at low gas concentrations. A second absorption measurement is then made over a different frequency interval, which includes contributions from the broadening of the absorption spectrum at higher concentrations. By combining these two measurements, the target sample concentration can be deduced as the absorption line spectrum changes shape with concentration.
Another significant patent is the "Method and assembly for gas detection via a convergent birefringent filter." This assembly and method enable sensitive, high-speed spectroscopic gas detection using a non-collimated convergent light path through a birefringent crystal. This design improves light collection and reduces the number of optical elements required to produce a useful absorption signal for gas detection.
Career Highlights
Throughout his career, Harold S. Lessure has worked with various organizations, including American Intell-Sensors Corporation and Operations Technology Development, NFP. His work has significantly impacted the field of gas detection, leading to advancements that enhance safety and efficiency in various applications.
Collaborations
Lessure has collaborated with notable individuals in his field, including Satoru Simizu and Louis J. Denes. These collaborations have contributed to the development of innovative technologies and solutions in gas detection.
Conclusion
Harold S. Lessure's contributions to gas detection technology through his patents and collaborations highlight his role as an influential inventor. His work continues to pave the way for advancements in this critical field.
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.