Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Dewatering of petroleum-containing sludges with recovery of the oil component

Dewatering of petroleum-containing sludges with recovery of the oil component

US Patent 4417976 · Granted Nov 29, 1983

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Utilization of soot from synthesis gas production in sewage treatment1991
Process for producing combustible sewage sludge filter cakes in filter presses1989
Cleaning and disposal of carbon black and ash containing wastewaters1989
Treatment and disposal of wastewaters containing carbon black and ash1988
Aqueous coal dispersions1987
Aqueous coal dispersions1987
Dewatering of sewage sludges on chamber filter presses1983
Manufacture of fibrids from polymers1980
Manufacture of fibrids from polymers1980
Manufacture of fibrids from polymers1980
Manufacture of fibrids from polymers1980
Manufacture of fibrids from poly(amide-imide) resins1980