This inventor holds 11 USPTO granted patents. Top assignees: Bhp Minerals International Inc., Bhp-Utah International Corp., Other. Active years: 1993-2000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- San Jose, CA (US) (1993 - 1994)
- Reno, NV (US) (1995 - 2000)
Company Filing History:
9 out of 20 
1 out of 1 
1 out of 834,601 Years Active: 1993-2000
Title: Innovations by Willem P Duyvesteyn
Introduction
Willem P Duyvesteyn is a notable inventor based in San Jose, California, with a significant contribution to the field of biochemical engineering. He holds a total of 11 patents, showcasing his innovative approaches to environmental challenges, particularly in the extraction and treatment of bitumen from tar sands.
Latest Patents
Duyvesteyn's latest patents include a groundbreaking process for the biochemical treatment of bitumen froth tailings. This process involves mixing bitumen froth tailings, which contain native hydrocarbon metabolizing microorganisms, with a growth media to create an inoculum. The inoculum is incubated under isothermal conditions to produce a mixed bacterial culture that reduces the amount of asphaltenes and solids in the water product. This innovative method not only decreases waste in bitumen extraction processes but also allows for the production of bitumen froth at lower temperatures without the need for caustic soda. Another significant patent involves the extraction of bitumen from bitumen froth using a water process, which eliminates the need for caustic soda and reduces the production of tailings sludges.
Career Highlights
Throughout his career, Duyvesteyn has worked with various companies, including BHP Minerals International Inc. His work has focused on developing sustainable and efficient methods for bitumen extraction and treatment, contributing to advancements in the field.
Collaborations
Duyvesteyn has collaborated with notable professionals in his field, including Houyuan Liu and Manuel R Lastra. These collaborations have further enhanced his research and development efforts in biochemical processes.
Conclusion
Willem P Duyvesteyn's innovative contributions to the field of biochemical engineering, particularly in the treatment and extraction of bitumen, highlight his commitment to sustainability and efficiency. His patents reflect a deep understanding of environmental challenges and a dedication to finding effective solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile