Location History:
- Medford, MA (US) (2015)
- Medford, ME (US) (2017)
Company Filing History:
1 out of 2 
1 out of 832,680 Years Active: 2015-2017
Title: Innovations of Joseph D Lessard
Introduction
Joseph D Lessard is an accomplished inventor based in Medford, Maine, known for his significant contributions to the field of metallurgy. He holds two patents that showcase his innovative approaches to copper and molybdenum production. His work reflects a deep understanding of chemical processes and their applications in industrial settings.
Latest Patents
One of Joseph's latest patents is focused on the production of copper via a looping oxidation process. This method involves the oxidation of copper sulfide concentrate to molten blister copper through a one-step, molten bath operation. The process not only produces molten blister copper but also generates iron oxide slag and rich sulfur dioxide gas. The blister copper is subsequently treated in an anode furnace to reduce iron content and oxidize residual sulfur, preparing it for either electrolysis or reoxidation.
Another notable patent is the sulfide oxidation process for the production of molybdenum oxides from molybdenite. This innovative looping method includes reacting molybdenite feed with a stoichiometric mixture of molybdenum oxides and oxygen in a first furnace. The process produces molybdenum oxides and sulfur dioxide, with a portion of the molybdenum oxides being transferred to a second furnace for reoxidation and looping back to the first furnace for use as an oxidizing agent.
Career Highlights
Throughout his career, Joseph D Lessard has worked with various companies, including Orchard Material Technology, LLC. His expertise in metallurgy and chemical processes has made him a valuable asset in the industry. His patents reflect his commitment to advancing production techniques and improving efficiency in metal processing.
Collaborations
Joseph has collaborated with notable professionals in his field, including Leonid Natan Shekhter and Daniel G Gribbin. These collaborations have likely contributed to the development and refinement of his innovative processes.
Conclusion
Joseph D Lessard's contributions to the field of metallurgy through his patents demonstrate his innovative spirit and dedication to advancing industrial processes. His work in copper and molybdenum production highlights the importance of innovation in achieving efficiency and sustainability in metal processing.
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.