This inventor holds 7 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Structural Technologies, LLC, Structural Group, Inc., Structural Technologies IP, LLC. Active years: 2003-2025.
Company Filing History:
3 out of 6 
2 out of 4 
2 out of 3 Years Active: 2003-2025
Title: The Innovative Contributions of John Richard Crigler
Introduction
John Richard Crigler, an accomplished inventor based in Woodbine, Maryland, is known for his significant contributions to engineering and construction technologies. With a total of six patents to his name, Crigler has developed innovative solutions that enhance the functionality and robustness of building systems.
Latest Patents
Among his latest inventions are the "Segmental Duct Coupler Devices, Systems, and Methods." This technology includes a unique duct coupler device that consists of a single body of material designed for welding to duct segments. This system not only simplifies assembly by eliminating the need for internal or external seals but also allows for casting in concrete, making it suitable for forming various structures such as bridges and buildings.
Another notable patent is for "Encapsulated Anchor Devices, Systems, and Methods." This invention focuses on reinforcing structures with an anchor device that features an anchor plate and a wedge. The design integrates a protective cover that encases the anchor plate, strand, and part of the cover, which enhances the safety and integrity of the reinforcement systems.
Career Highlights
Crigler's career includes significant roles in reputable companies such as Structural Technologies IP, LLC and Structural Group, Inc. His expertise in structural engineering has allowed him to innovate tools and methods that meet the needs of modern construction practices.
Collaborations
Throughout his career, Crigler has collaborated with esteemed colleagues, including Gregory Alan Hunsicker and Peter H. Emmons, fostering an environment of innovation and shared knowledge within the engineering community.
Conclusion
John Richard Crigler’s contributions to the field of structural engineering, through his innovative patents and collaborative efforts, underscore his role as a key figure in advancing construction technology. His work not only enhances the safety and efficiency of engineering practices but also paves the way for future innovations in the industry.