This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignee: 3M Innovative Properties Company. Active years: 2006-2008.
Company Filing History:
Years Active: 2006-2008
Title: The Innovations of Seth A Lieffort
Introduction
Seth A Lieffort is a notable inventor based in Eagan, MN (US), recognized for his contributions to radio frequency identification (RFID) technology. With a total of 4 patents, he has made significant advancements in the field, particularly in enhancing the efficiency and effectiveness of RFID systems.
Latest Patents
One of his latest patents is titled "Field-shaping shielding for radio frequency identification (RFID) system." This invention describes an RFID system that utilizes a substantially-contiguous conductive shield to shape the electromagnetic field formed by an antenna for communication with RFID tags. The design features a planar form for both the antenna and the conductive shield, which can be mounted to a surface in a check-in/check-out area. The conductive shield is strategically positioned around the antenna, allowing the electromagnetic field to extend perpendicularly to the antenna while preventing the field from forming over the shield.
Another significant patent is the "Multi-loop antenna for radio frequency identification (RFID) communication." This invention features a multi-loop antenna with several conductive loops designed to produce an electromagnetic field for RFID communication. The loops are spaced apart based on the dimensions of the RFID tags, which helps reduce the size of the holes within the magnetic field. This configuration not only increases the coverage of the antenna but also decreases inter-winding capacitance, thereby enhancing the overall read range achieved by the antenna.
Career Highlights
Seth A Lieffort is currently employed at 3M Innovative Properties Company, where he continues to innovate and develop new technologies. His work has significantly impacted the RFID industry, making systems more reliable and efficient.
Collaborations
Throughout his career, Seth has collaborated with several talented individuals, including Edward D Goff and Ronald David Jesme. These collaborations have contributed to the successful development of his patented technologies.
Conclusion
Seth A Lieffort's contributions to RFID technology through his innovative patents demonstrate his expertise and commitment to advancing the field. His work at 3M Innovative Properties Company continues to influence the industry positively.