Assignee
OTISCA IND LTD
20 granted patents·432 citations·filing 1974–1987
Top patents by PatentIndex Score
20 records- 0193US4151003AViscosity modification of bituminous materialsOTISCA IND LTD·Filed 1976·Granted Apr 24, 1979·46 cites·11 claims
- 0290US4484928AMethods for processing coalOTISCA IND LTD·Filed 1982·Granted Nov 27, 1984·39 cites·26 claims
- 0385US4173530AMethods of and apparatus for cleaning coalOTISCA IND LTD·Filed 1975·Granted Nov 6, 1979·36 cites·60 claims
- 0481US4244699ATreating and cleaning coal methodsOTISCA IND LTD·Filed 1979·Granted Jan 13, 1981·26 cites·8 claims
- 0580US4265737AMethods and apparatus for transporting and processing solidsOTISCA IND LTD·Filed 1980·Granted May 5, 1981·32 cites·9 claims
- 0679US3941679ASeparation of hydrocarbonaceous substances from mineral solidsOTISCA IND LTD·Filed 1974·Granted Mar 2, 1976·36 cites·7 claims
- 0777US4249699ACoal recovery processes utilizing agglomeration and density differential separationsOTISCA IND LTD·Filed 1979·Granted Feb 10, 1981·25 cites·18 claims
- 0876US4248698ACoal recovery processOTISCA IND LTD·Filed 1979·Granted Feb 3, 1981·24 cites·14 claims
- 0974US4770766ATime-controlled processes for agglomerating coalOTISCA IND LTD·Filed 1986·Granted Sep 13, 1988·36 cites·70 claims
- 1074US4224039ACoal briquetting methodsOTISCA IND LTD·Filed 1979·Granted Sep 23, 1980·20 cites·9 claims
- 1168US4252639ACoal beneficiation processesOTISCA IND LTD·Filed 1979·Granted Feb 24, 1981·18 cites·14 claims
- 1262US4461625AMethods of cleaning coalOTISCA IND LTD·Filed 1980·Granted Jul 24, 1984·12 cites·11 claims
- 1362US4178231AMethod and apparatus for coal separation using fluorinated hydrocarbonsOTISCA IND LTD·Filed 1978·Granted Dec 11, 1979·14 cites·31 claims
- 1460US4027731AMethods of and apparatus for hydrocarbon recoveryOTISCA IND LTD·Filed 1975·Granted Jun 7, 1977·23 cites·9 claims
- 1559US4936513ABall millsOTISCA IND LTD·Filed 1987·Granted Jun 26, 1990·13 cites·25 claims
- 1655US4447245AMethods of cleaning coalOTISCA IND LTD·Filed 1980·Granted May 8, 1984·10 cites·9 claims
- 1745US4274946AAgglomeration type coal recovery processesOTISCA IND LTD·Filed 1979·Granted Jun 23, 1981·6 cites·12 claims
- 1843US4186887AProcesses for recovering coalOTISCA IND LTD·Filed 1978·Granted Feb 5, 1980·6 cites·12 claims
- 1942US4178233AFluorinated hydrocarbons in coal mining and beneficiationOTISCA IND LTD·Filed 1978·Granted Dec 11, 1979·6 cites·34 claims
- 2036US4089340AViscosity modification of hydrocarbonaceous materialsOTISCA IND LTD·Filed 1976·Granted May 16, 1978·4 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →