Methane Drainage Ventures

Calculating rank

USPTO Granted Patents = 9

Forward Citations = 311

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8 inventors (with patents filed for the assignee):

Walter L Richards (8 out of 8 patents)

Roger L Henderson (2 out of 2 patents)

George N Aul (2 out of 2 patents)

4. Barry W Pauley (2 out of 2 patents)

5. Robert M Sweet (1 out of 10 patents)

6. Amber C Davidson (1 out of 3 patents)

7. Carel J Brest Van Kempen (1 out of 6 patents)

8. Anil Mahyera (1 out of 3 patents)

9 patents: Sort by Forward Citations

1. 4691789 - Process for establishing a clear horizontal borehole in a subterranean (1987-09-08),

2. 4687060 - Production and grout liner for methane drainage in subterranean (1987-08-18),

3. 4651836 - Process for recovering methane gas from subterranean coalseams (1987-03-24),

4. 4624328 - In-shaft drilling apparatus for recovery of gas from subterranean (1986-11-25),

5. 4611855 - Multiple level methane drainage method (1986-09-16),

6. 4600061 - In-shaft drilling method for recovery of gas from subterranean formations (1986-07-15),

7. 4533182 - Process for production of oil and gas through horizontal drainholes from (1985-08-06),

8. 4484643 - Gas-liquid-solids separation system (1984-11-27),

9. 4452489 - Multiple level methane drainage shaft method (1984-06-05),

Company Overview

Methane Drainage Ventures is a leading engineering and consulting firm specializing in methane gas recovery and control. Our expertise lies in designing and implementing innovative solutions to extract and utilize methane from mines, landfills, and other sources. With a focus on environmental sustainability and energy efficiency, we help our clients reduce greenhouse gas emissions and achieve cost savings. Our experienced team is committed to providing customized solutions that meet the unique needs of each project.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

9 Patents

#2 in Placentia, CA

#7,751 in California

#32,627 in US

Placentia, CA, United States of America