Location History:
- Davis, CA (US) (1990 - 1992)
- St. Helena, CA (US) (1979 - 1995)
- Concord, CA (US) (2001)
Company Filing History:
7 out of 11 
2 out of 2 
1 out of 1 Years Active: 1979-2001
Title: The Innovations of Philip T Dempster: A Pioneer in Gas Analysis and Biomechanics
Introduction
Philip T Dempster, an inventive force based in St. Helena, California, has made significant contributions to the fields of gas analysis and biomechanics. With a remarkable record of 13 patents, Dempster showcases his talent for developing practical solutions that enhance existing technologies and improve human performance.
Latest Patents
Among his latest innovations, Dempster has developed an "Apparatus and method for the determination of the relative proportions of gases." This invention intelligently determines the relative proportions of gases in a mixture by using N-1 sensors, making it not only efficient but also highly accurate. In particular, the process measures oxygen and carbon dioxide in the presence of nitrogen, utilizing magnetic susceptibility and the speed of sound. The method is notable for its fast response times and exceptional stability, making it ideal for breath-by-breath analysis. Furthermore, it does not rely on high-temperature components or electrochemical cells, thereby eliminating the need for consumable components.
Another significant patent from Dempster is the "Linear tracking isokinetic exerciser and method." This invention features a recumbent bilateral reciprocal isokinetic leg exerciser that employs a linear track to facilitate movement. The design uses hydraulic cylinders to control the hydraulic fluid flow, allowing the exerciser's members to operate isokinetically. This innovation includes a strain gauge assembly, which accurately measures patient effort across multiple axes, contributing to precise tracking of the forces applied during exercise.
Career Highlights
Dempster's career includes impactful engagements with prominent companies, such as Loredan Biomedical, Inc. His work has established him as a leader in the integration of innovative technologies in biomedical applications, fostering advancements that benefit both healthcare and sports science industries.
Collaborations
Throughout his career, Dempster has collaborated with notable professionals, including Malcolm L Bond and Glen R Mangseth. These partnerships have further enriched his contributions to the development of groundbreaking technologies, demonstrating the power of collaboration in the innovation process.
Conclusion
In summary, Philip T Dempster's inventive spirit and technical expertise have led to the creation of important patents that enhance our understanding of gas analysis and biomechanics. His work not only reflects his dedication to innovation but also represents a commitment to improving technologies that can positively affect human health and performance. As he continues to push the boundaries of engineering and design, his contributions will undoubtedly pave the way for future advancements in these critical fields.