This inventor holds 5 USPTO granted patents and 2 published patent applications, plus 2 CIPO patents and 5 EPO patents. Top assignees: Brahma Industries LLC, Tool Manufacturing, Inc., Schlage Lock Company LLC. Active years: 2025-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:

Years Active: 2025-2026
Title: John D. Fiegener: Innovator in Palm Stapler Technology
Introduction
John D. Fiegener is an accomplished inventor based in Marblehead, MA (US). He holds 5 patents that showcase his innovative contributions to the field of fastening technology. His work primarily focuses on enhancing the functionality and safety of palm staplers.
Latest Patents
Fiegener's latest patents include an innovative design for a battery-operated palm stapler. This device features an insert for holding fasteners and a method of installing them efficiently. The stapler is designed with a housing that includes a telescoping barrel extending outwardly. An insert is engaged in the barrel's bore and is held in place by magnets. The insert body defines a slot for receiving fasteners, extending from the top wall to the bottom wall of the body. Additionally, at least one magnet is provided in the body adjacent to the slot to hold fasteners in the correct orientation for installation. A sensor probe within the body detects voltage in nearby electrical cables and deactivates the hammer actuating mechanism if voltage is detected. This innovative design allows for the selective engagement of inserts holding different types of fasteners.
Career Highlights
Throughout his career, John D. Fiegener has worked with notable companies such as Brahma Industries LLC and Thule Sweden AB. His experience in these organizations has contributed to his expertise in developing advanced fastening solutions.
Collaborations
Fiegener has collaborated with talented individuals in the industry, including Mark Ferris and Eric A. Miller, Jr. These partnerships have likely enriched his innovative processes and contributed to his success as an inventor.
Conclusion
John D. Fiegener's contributions to the field of fastening technology, particularly through his innovative palm stapler designs, highlight his role as a significant inventor. His patents reflect a commitment to improving safety and efficiency in fastening applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile