Company Filing History:
2 out of 2 
1 out of 30 
1 out of 1 Years Active: 1995-2020
Title: Innovations by David A Rohrbacker
Introduction
David A Rohrbacker is an accomplished inventor based in Tucson, Arizona. He holds a total of four patents, showcasing his expertise in the field of metal casting. His innovative approaches have contributed significantly to advancements in this area.
Latest Patents
One of his latest patents is titled "Composition and method to form displacements for use in metal casting." This method involves disposing a powder blend, which includes a mixture of ground ceramic and resin particles, into a mold. The process includes densifying the powder blend while in the mold, heating it to create a first displacement, and then impregnating this displacement with a polymer precursor to form a second displacement. Finally, heating the second displacement results in a third displacement.
Another notable patent is "Molding composition and method using same to form displacements for use in a metal casting process." This method outlines the steps to create a displacement for metal casting by grinding ceramic particles to less than 150 microns and resin particles to less than 100 microns. The resulting powder blend is then disposed into a mold, densified, and cured to form the desired displacement.
Career Highlights
Throughout his career, David has worked with several companies, including Destech Corporation and City Technology Limited. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
David has collaborated with notable individuals in his field, including John Robert Finbow and Bryan S Hobbs. These partnerships have further enhanced his work and led to significant advancements in metal casting technologies.
Conclusion
David A Rohrbacker is a prominent inventor whose contributions to metal casting through his patents and collaborations have made a lasting impact in the industry. His innovative methods continue to influence the field and inspire future advancements.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.