Company Filing History:
6 out of 12 
1 out of 7 
1 out of 1 Years Active: 1998-2022
Title: Innovations of Stephen R Clarke in Lead Acid Battery Recycling
Introduction
Stephen R Clarke is a notable inventor based in Orinda, CA, who has made significant contributions to the field of recycling, particularly in the area of lead acid batteries. With a total of 10 patents to his name, Clarke has developed innovative methods that enhance the efficiency and sustainability of lead recovery processes.
Latest Patents
Clarke's latest patents include groundbreaking technologies such as "Devices and method for smelterless recycling of lead acid batteries." This invention allows for the recovery of lead from lead acid battery scrap in two separate production streams, yielding clean grid lead and high-purity lead without the need for smelting. The process utilizes an aqueous electroprocessing solvent and electro-refining, ensuring that spent solvents can be recycled back into the recovery process. Another significant patent is for "Closed loop systems and methods for recycling lead acid batteries," which describes a closed loop electrochemical process that continuously forms adherent lead on a cathode from an electrolyte used to dissolve desulfated lead paste. This innovative approach avoids lead dioxide formation at the anode by employing specific configurations and operating conditions.
Career Highlights
Throughout his career, Clarke has worked with prominent companies such as Aqua Metals Inc. and Luxfer Group Limited. His work in these organizations has focused on advancing recycling technologies and promoting sustainable practices in the industry.
Collaborations
Clarke has collaborated with notable individuals in his field, including Robert Lewis Clarke and Michael John King. These partnerships have contributed to the development of his innovative patents and have furthered advancements in lead acid battery recycling.
Conclusion
Stephen R Clarke's contributions to the recycling of lead acid batteries demonstrate his commitment to innovation and sustainability. His patents reflect a deep understanding of electrochemical processes and a dedication to improving environmental outcomes in battery recycling.
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.