Company Filing History:
Years Active: 1987-1991
Title: The Innovations of Hans-Juergen Graf
Introduction
Hans-Juergen Graf is an accomplished inventor based in Oceanside, CA (US). He has made significant contributions to the field of chemical engineering, particularly in the development of high-purity chemical containers and automated filling systems. With a total of 6 patents to his name, Graf continues to push the boundaries of innovation in his industry.
Latest Patents
Among his latest patents is the "Ultra high purity reagent container with large breakseal." This invention features a container designed for high purity chemicals, utilizing a quartz or glass breakseal tube. The end of the tube's interior forms a thin annular edge, with a glass or quartz disk fused to this edge, effectively closing the tube. The design allows for the inner tube to be inserted, and upon application of force, the disk is broken off the thin annular edge, ensuring the integrity of the chemicals inside.
Another notable patent is the "Chemical refill system." This system is designed for automatically filling a bubbler or other vapor delivery systems from a reservoir. It includes a conduit system that is purged and pressurized with inert gas, utilizing a unique refill reservoir along with a level sensing and valving system to ensure efficient operation.
Career Highlights
Hans-Juergen Graf is currently employed at Air Products and Chemicals, Inc., where he applies his expertise in chemical engineering to develop innovative solutions. His work has significantly impacted the efficiency and safety of chemical handling and delivery systems.
Collaborations
Throughout his career, Graf has collaborated with notable colleagues, including Peter T Randtke and Robert E Fletcher. These partnerships have fostered a creative environment that encourages the exchange of ideas and advancements in technology.
Conclusion
Hans-Juergen Graf's contributions to the field of chemical engineering exemplify the spirit of innovation. His patents reflect a commitment to enhancing the safety and efficiency of chemical processes. As he continues to develop new technologies, Graf remains a key figure in the advancement of chemical engineering.