Location History:
- Kensington, MD (US) (1978 - 2007)
- Sarasota, FL (US) (2012)
Company Filing History:
6 out of 14 
1 out of 8,693 
1 out of 1 Years Active: 1978-2012
Title: Innovations of Lorin R. Stieff
Introduction
Lorin R. Stieff is a notable inventor based in Kensington, MD (US), recognized for his contributions to the field of radon measurement technology. With a total of 16 patents to his name, Stieff has made significant advancements in the monitoring of radon and its progeny, which are crucial for environmental safety and health.
Latest Patents
Stieff's latest patents include innovative devices designed to measure radon ground surface flux and radon progeny concentration. One of his notable inventions is the "Measurement of undisturbed radon ground surface flux using a passive radon surface flux monitor." This device features a dome with an open base and a metal collar that supports the dome when placed on the ground. The conductive screen allows for the diffusion of gases, including radon, while a thin paper diaphragm prevents dust from entering the dome. The electret threaded into the top opening measures changes in voltage over time, providing valuable data on radon levels.
Another significant patent is the "Radon progeny monitor," which introduces the electret radon progeny integrating sampling unit (E-RPISU). This device utilizes an electret ion chamber to measure radon progeny concentration effectively. A conventional air sampling system collects radon progeny on a filter, and the alpha radiation emitted ionizes the air within the chamber. The electret voltage drop during sampling correlates with the integrated progeny concentration, allowing for accurate measurements of radon levels.
Career Highlights
Throughout his career, Stieff has worked with various companies, including Rad Elec Inc., where he has further developed his expertise in radon measurement technologies. His work has contributed to the advancement of safety measures in environments where radon exposure is a concern.
Collaborations
Stieff has collaborated with notable individuals in his field, including John C. Dempsey and Charles B. Stieff. These collaborations have likely enhanced the development and implementation of his innovative technologies.
Conclusion
Lorin R. Stieff's contributions to radon measurement technology through his patents and collaborations have significantly impacted environmental safety. His innovative devices continue to play a vital role in monitoring radon levels, ensuring public health and safety.