This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignees: Hydro Geo Chem, Inc., Other. Active years: 1994-2003.
Company Filing History:
1 out of 1 
1 out of 834,453 Years Active: 1994-2003
Title: Harold W Bentley: Innovator in Environmental Engineering
Introduction
Harold W Bentley is a notable inventor based in Tucson, AZ, recognized for his contributions to environmental engineering. He holds 2 patents that focus on innovative methods for estimating gas production from landfills and removing volatile contaminants from contaminated earth.
Latest Patents
One of Bentley's latest patents is titled "Method and system for estimating gas production by a landfill or other subsurface source." This invention provides a new and useful method for estimating landfill gas (LFG) generation and gas permeability in landfills or other subsurface gas-producing bodies. The method involves obtaining a time history record of atmospheric pressure, measuring gas pressure at selected locations, and using these measurements to estimate the LFG generation rate and gas permeability.
Another significant patent is the "Vacuum extraction method and apparatus for removing volatile." This invention focuses on removing volatile contaminants from the vadose zone of contaminated earth through vacuum extraction. The method includes trapping water within the extraction borehole to prevent contaminated water from surfacing and maintaining atmospheric pressure at the bottom of the borehole to enhance air circulation through the contaminated zone.
Career Highlights
Throughout his career, Bentley has worked with various companies, including Hydro Geo Chem, Inc. His work has significantly impacted the field of environmental engineering, particularly in waste management and contamination remediation.
Collaborations
Bentley has collaborated with notable professionals in his field, including Gary R Walter and Stewart J Smith. These collaborations have contributed to the advancement of innovative solutions in environmental engineering.
Conclusion
Harold W Bentley's work exemplifies the importance of innovation in addressing environmental challenges. His patents reflect a commitment to improving methods for managing landfill gas and removing contaminants, showcasing his significant contributions to the field.