This inventor holds 5 USPTO granted patents and 2 published patent applications, plus 2 CIPO patents and 2 EPO patents. Top assignees: Rocher Manganese, Inc., American Manganese Inc., Blue Sky Mines Ltd.. Active years: 1996-2019.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Vancouver, CA (1996 - 2017)
- Burnaby, CA (2019)
Company Filing History:
2 out of 2 
1 out of 1 
1 out of 1 Years Active: 1996-2019
Title: Innovations of Douglas Dale Warkentin
Introduction
Douglas Dale Warkentin is a notable inventor based in Burnaby, Canada. He has made significant contributions to the field of cobalt processing, holding a total of five patents. His work primarily focuses on the recycling and processing of cobaltous sulphate and dithionate liquors derived from cobalt resources.
Latest Patents
Warkentin's latest patents include innovative processes for the removal of water and recycling of sodium sulphate and sodium dithionate. One of his patents describes a method for processing cobaltous sulphate/dithionate liquors derived from cobalt resources, particularly from components of lithium-ion batteries. This process involves deriving a solution containing cobalt sulphate and cobalt dithionate, followed by the precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide. The subsequent steps include the crystallization of sodium sulphate and sodium dithionate, heating the resulting crystals to produce anhydrous sodium sulphate, sulphur dioxide, and water, and finally separating the anhydrous sodium sulphate. Another patent outlines a similar process for cobaltous sulphate/dithionate liquors derived from cobalt resource material that is essentially free of lithium.
Career Highlights
Throughout his career, Warkentin has worked with various companies, including Rocher Manganese, Inc. His expertise in cobalt processing has positioned him as a key figure in the industry, contributing to advancements in sustainable practices.
Collaborations
Warkentin has collaborated with notable individuals in his field, including Norman Chow and Joey Chung-Yen Jung. Their combined efforts have furthered the development of innovative solutions in cobalt processing.
Conclusion
Douglas Dale Warkentin's contributions to cobalt processing through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively, promoting sustainable practices in resource management.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile