This inventor holds 1 USPTO granted patent. Top assignee: Assa Abloy Access and Egress Hardware Group, Inc.. Active years: 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: 2026
Title: David Martinez Diaz and His Lock-Return Spring Invention.
Introduction
David Martinez Diaz is an inventor associated with Tlaquepaque, Mexico. His patent work addresses a practical feature of door-lock hardware: returning a door handle to its resting position while allowing the lock to be configured for different handing orientations.
Latest Patents
Diaz is credited with 1 patent, titled “Return Spring Assembly for a Lock.” The invention describes a return spring assembly for a door handle that includes a spring cartridge and a hub plate. The hub plate can be removably connected to the cartridge and reoriented to rehand the lock. The patent also describes a method for rehanding a lock using this assembly.
Career Highlights
The patent reflects work on adaptable lock components designed to support different door configurations. Diaz is associated with ASSA ABLOY Access and Egress Hardware Group, Inc., a company focused on access and door-hardware products.
Collaborations
Diaz’s listed coworker is Gerado Pereo Arvayo. Their association connects his invention to the broader work of developing and producing access and egress hardware.
Conclusion
David Martinez Diaz’s patented return spring assembly combines a removable hub plate with a spring cartridge to make lock handing adaptable, contributing a practical design to door-lock hardware.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile