Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Drying low rank coal and retarding spontaneous ignition

Drying low rank coal and retarding spontaneous ignition

US Patent 4775390 · Granted Oct 4, 1988

Estimated economic value: $22,083,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Integrated lubricant upgrading process2003
Integrated lubricant upgrading process2003
Drying low rank coal and retarding spontaneous ignition1989
Drying low rank coal and retarding spontaneous ignition1989
Method for producing a deactivated dried coal1988
Method for passivating low rank dried coal1988
Drying low rank coal and retarding spontaneous ignition1988