Location History:
- Baltimore, MD (US) (1990)
- Cockeysville, MD (US) (1995 - 2005)
- Glen Rock, PA (US) (2012 - 2015)
Company Filing History:
5 out of 8 
2 out of 490 
1 out of 832,812 Years Active: 1990-2015
Title: Innovative Solutions by John M Sewell
Introduction
John M Sewell is an accomplished inventor based in Glen Rock, PA, with a remarkable portfolio of eight patents. His innovative work focuses primarily on medical devices, showcasing his commitment to enhancing healthcare through technological advancements.
Latest Patents
Sewell's latest invention, the High Sensitivity Noise Immune Stethoscope, represents a significant leap in physiological monitoring. This stethoscope is adept for use in high-noise environments, where traditional stethoscopes would typically fail. Designed to have a mechanical impedance that aligns with physiological activity while being mismatched to air-coupled acoustics, the device integrates both passive and active detection systems. The passive system utilizes a flexural disc and electromechanical stack in contact with the patient, while the active system employs Doppler technology for enhanced sound detection. This hybrid design ensures effective monitoring, even in environments with ambient noise levels reaching 100 dBA and beyond.
Career Highlights
Throughout his career, Sewell has contributed to various organizations, most notably Active Signal Technologies, Inc. and Martin Marietta Corporation. His positions in these companies have allowed him to work at the intersection of technology and healthcare, fostering advancements that improve patient care.
Collaborations
In his journey, Sewell has collaborated with notable professionals such as Keith Bridger and Arthur V Cooke. These partnerships have provided him with diverse perspectives and expertise, enhancing his innovative projects and leading to numerous successful patent applications.
Conclusion
John M Sewell stands as a testament to creativity and ingenuity in the field of medical innovation. With his continued advancements in technology, particularly the High Sensitivity Noise Immune Stethoscope, he is poised to make a lasting impact in the field of healthcare, further improving the quality of medical diagnostics and patient care.