This inventor holds 7 USPTO granted patents. Top assignees: Summagraphics Corporation, Hid Corporation, Warner-Lambert Company. Active years: 1990-2001.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
5 out of 68 
1 out of 11 
1 out of 2,538 Years Active: 1990-2001
Title: The Innovative Genius of David A Siefer
Introduction
David A Siefer, an accomplished inventor based in Orange, Connecticut, has made significant contributions to the field of technology with a portfolio that includes seven patents. His innovative ideas and inventions reflect a keen understanding of practical applications that have the potential to streamline various processes.
Latest Patents
Among his notable inventions is the Wiegand effect energy generator. This device utilizes a Wiegand sensor to serve as a power source for external circuits. By employing an alternating magnetic field, the Wiegand wire within the sensor experiences a change in magnetic state, generating substantial output pulses to power external transmitters. These transmitters can convey critical information signals, such as the flow of gas or water through metering systems. Another invention, the pressure-sensitive stylus, is designed for use with digitizer tablets. It features a resiliently compressible tip that effectively engages tablet surfaces while applying pressure to a resistance element, showcasing his ability to blend functionality with user-friendly design.
Career Highlights
David has held positions at respected companies such as Summagraphics Corporation and HID Corporation. Throughout his career, he has consistently demonstrated ingenuity and technical prowess, leading to the development of practical innovations that enhance everyday technologies.
Collaborations
David A Siefer has had the opportunity to work alongside notable peers, including Alexander M Purcell and David J Dlugos. Collaborating with other talented professionals has likely enriched his inventive processes and contributed to the advancement of his projects.
Conclusion
David A Siefer stands out as an influential figure in the realm of innovation, with his inventive spirit evidenced by his impressive number of patents. His latest contributions, including the Wiegand effect energy generator and the pressure-sensitive stylus, reflect the forward-thinking approach that characterizes his work, paving the way for future advancements in technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile