This inventor holds 1 USPTO granted patent. Top assignee: Sonoco Development Incorporated. 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: Daniel Christopher Gräf: Innovator in Container-Sealing Systems
Introduction
Daniel Christopher Gräf is an inventor associated with Mutterstadt, Germany. His patent work addresses machinery for applying and hermetically sealing end closures on containers. Gräf is associated with Sonoco Development Incorporated.
Latest Patents
The available information lists 1 patent for Gräf: “Systems and Methods for the Application and Sealing of End Closures on Containers.” The invention describes a system and method for hermetically sealing a closure to a container using a die assembly and a mandrel assembly.
The mandrel assembly includes an outer mandrel, an inner mandrel, and an ejector positioned within the inner mandrel. The components move and retract in coordinated stages, enabling the system to apply and seal the closure.
Career Highlights
Gräf’s listed patent reflects work on container-packaging equipment and the mechanical processes used to secure end closures. His association with Sonoco Development Incorporated connects this invention to the company’s development activities.
Collaborations
Dirk Hatje is identified as Gräf’s coworker. The available information does not specify Hatje’s role in the patent or whether he collaborated on this invention.
Conclusion
Daniel Christopher Gräf’s listed patent focuses on a coordinated mandrel system for hermetically sealing container closures, highlighting his contribution to packaging technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile