Company Filing History:
2 out of 21 
1 out of 832,880 Years Active: 1976-1978
Title: The Innovative Contributions of Harry Kroll
Introduction
Harry Kroll is a notable inventor based in Warwick, Rhode Island, known for his significant contributions to the field of electrodeposition and etching processes. With a total of three patents to his name, Kroll has made advancements that enhance the efficiency and effectiveness of gold deposition and magnesium plate etching.
Latest Patents
Kroll's latest patents include a groundbreaking process for producing bright deposits of gold through electrodeposition. This invention allows for the creation of gold and its alloys at significantly increased speeds, while also ensuring a more even distribution compared to conventional methods. The use of chelating agents, specifically carboxymethylated aminomethylene phosphonic acids and their salts, promotes and enhances the deposition of gold, resulting in considerable savings in the average amount of gold needed to meet minimum thickness specifications. Another notable patent is a nitric acid system for etching magnesium plates. This one-step, powderless high-speed process enables the production of photoengraved letterpress printing and pattern plates from magnesium and its alloys. The process involves directing droplets of an etching liquid, which consists of an aqueous solution of a strong inorganic acid and adjuvants, against the surface of the plate.
Career Highlights
Throughout his career, Kroll has worked with various companies, including the Philip A. Hunt Chemical Corporation. His work has been instrumental in advancing technologies related to metal deposition and etching processes.
Collaborations
Kroll has collaborated with notable individuals in his field, including David L. Czirr and Alfred M. Weisberg. Their combined expertise has contributed to the success of Kroll's innovative projects.
Conclusion
Harry Kroll's contributions to the fields of electrodeposition and etching processes have significantly impacted the industry. His innovative patents demonstrate a commitment to enhancing efficiency and effectiveness in manufacturing processes.