Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Underground gasification of bituminous coal

Underground gasification of bituminous coal

US Patent 4299285 · Granted Nov 10, 1981

Estimated economic value: $11,833,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method for transporting a liquid for atomization and a method and devices for at2015
Method or transporting a liquid for atomization and a method and devices for ato2013
Apparatus and method for continuous separation of magnetic particles from non-ma2011
Apparatus and method for continuous separation of magnetic particles from non-ma2010
Air jig for separation of minerals from coal2008
Continuous magnetic separator and process2008
Method and apparatus for separating material2006
Integral pump for high frequency atomizer2005
Method and apparatus for separating material2004
Multiple horn atomizer with high frequency capability2003
Method and apparatus for sorting particles with electric and magnetic forces2003
Method and apparatus for breaking emulsions of immiscible liquids by magnetostat1999