Location History:
- Pierrefonds, CA (1976 - 1977)
- Fort Saskatchewan, CA (1982 - 1983)
- St. Albert, CA (1982 - 1999)
Company Filing History:
3 out of 73 
2 out of 51 
2 out of 5 Years Active: 1976-1999
Title: Innovations and Contributions of Derek G Kerfoot
Introduction
Derek G Kerfoot is a notable inventor based in St. Albert, Canada. He has made significant contributions to the field of metallurgy, particularly in the recovery and separation of valuable metals. With a total of nine patents to his name, Kerfoot's work has had a substantial impact on the mining and metallurgical industries.
Latest Patents
One of his latest patents is titled "Process for upgrading copper sulphide residues containing nickel and iron." This innovative process involves separating and recovering nickel and copper values from a nickel-copper matte that may also contain iron and arsenic. The method includes steps of sulphuric acid leaching at atmospheric pressure, producing a nickel sulphate solution and a copper-rich sulphide residue. The process effectively removes iron and arsenic, resulting in a nickel sulphate solution with low levels of impurities. Another significant patent is for the "Process for the separation of cobalt from nickel," which further showcases his expertise in metal recovery.
Career Highlights
Throughout his career, Derek G Kerfoot has worked with prominent companies in the mining sector, including Sherritt Gordon Mines Limited and Noranda Mines Limited. His experience in these organizations has allowed him to develop and refine his innovative processes, contributing to advancements in metal recovery techniques.
Collaborations
Kerfoot has collaborated with notable professionals in the field, including Donald R Weir and Robert W Stanley. These partnerships have facilitated the exchange of ideas and expertise, further enhancing the quality and impact of his inventions.
Conclusion
Derek G Kerfoot's contributions to the field of metallurgy through his innovative patents and collaborations have established him as a significant figure in the industry. His work continues to influence the processes used in metal recovery and separation, showcasing the importance of innovation in advancing technology.
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.