Patent no Country Title
IN47446 India Improvements in or relating to exchanger from coal, peat, lignite or the like
IN70151 India Improvements in or relating to the utilization of oxidised coal
IN65891 India A process for the conversion of coal tar or coal tar fractions to high speed diesel oil and gesoline
IN67779 India A process for briquetting of non-caking coal slacks and carbonisation of briquettes to produce a strong coke
IN69619 India A mechanical area integrator for the measurements of the cross-sectional area of mine road-way or the like
IN75820 India An improved profilograph (areameter) for the measurement of the cross-sectional area of mine-airways and for recording the shape of the same
IN73576 India A simple specific gravity indicator for use in heavy medium coal washing
IN086382 India An improved process of coal flotation
IN91430 India Improvements in or relating tof reconstituted mica.
IN99655 India A process for the production of hard briquette cokes and moulded shapes from non-coking, coals coke breeze and other similar carbonaceous materials suitable for domestic and/or metallurgical purposes
IN99654 India A process for the production of hard, formed briquette cokes for domestic, chemical and/or metallurgical purposes
IN100675 India An intergrated process (oleo flotation) for upgrading and dewatering of small coal
IN118033 India A new process for the production of domestic fuel from coal
IN126709 India Improvements in or relating to the preparation of ironcatalysts for hydrocenation of coal
IN127798 India Improvements in or relating to the new process for the production of carbon black from coal
IN127173 India A process for the production of active carbon from low rank caking coals
IN129033 India A process for making a substitute for canada balsam especially suited for making slides of petrological specimens for microscopic examination from the crude natural resin "chandrus'' (shorea weisneri schiffn)
IN129039 India Improvements in or relating to a domestic angeethi/sigere for the combustion of charfines and/or like materials of sizes ranging from 6-20 mm
IN131607 India A process for selective reduction of iron oxides in complex ores-
IN134546 India Improvements in or relating to chemical refining of graphite (natural or beneficiated ) having 1% mineral matter
IN141807 India Hydro-pneumatic prop.
IN142872 India An improved method for making spherical aluminium particles
IN143181 India A device for dust removal from air
IN144163 India A process for the demineralisation of coals.
IN144601 India Improved bolt and anchorage device for providing ground support in mines tunnels, rock slopes and other civil construction works.
54105195 Japan PREPARATION OF HIGH POLYMER DISPERSION
IN150420 India Process for preparation detonator cap sensitive explosive composition
IN155137 India A chemical process for demineralisation of carbonaceous materials such as coal and coke
IN155883 India A closed circuit hydraulic prop for the support of mine roofs with an improved relief valve mechanism
IN157165 India A dust arrestor device for large diameter deep hole drilling for opencast mines
IN163387 India A process for the production of a smokeless solid ignitor for fuel fired domestic ovens and appliances
IN163625 India Low voltage room electrostatic precipitator
IN164314 India Tensioned cable truss device
US5368369 USA Equipment useful for winning ores particularly coal in longwall mining
IN174855 India An improved rope truss device for supporting the roof of the underground mines
IN175190 India An improved telescopic prop useful for supporting roof of underground mines.
IN179535 India A process for the production of nickel concentrate from lateritic over burden mineral of chromite mines.
IN180187 India A process for the production of nickle concentrate from nickel bearing lateritic overburden material of chromate mines.
US5769504 USA Equipment for shortwall mining useful for extraction of pillars in underground coal mines
US6102628 USA Arch useful for withstanding effect of rockburst occurring in underground mines/tunnels
IN184865 India A device useful for scaring birds
IN185566 India A mobile coal slusher
IN185933 India A device for detecting the direction and span of opening gallery in an underground water logged and inaccessible mine
IN185934 India A device for the installation of friction bolts in drill holes in underground mines
IN185943 India An improved self closing device for the flow of fluids
IN186008 India An improved airlock device
IN186057 India An improved equipment useful for winning of ores in longwall mining
IN186295 India An improved prop with high setting load useful for supporting mine roofs
IN187005 India A SENSOR FOR DETECTING AND MONITORING CHLORIDE PRESENT IN A SOLID SAMPLE AND A DEVICE INCORPORATING THE SENSOR
IN188270 India A cable bolt useful for depillaring of thick coal seams.
IN189196 India An improved steel arch useful for underground mines/tunnels
US6623538 USA Sterile laminar airflow device
IN193307 India An improved pit prop for supporting Mine/tunnel roofs
IN194687 India An improved roof drilling cum bolting device useful for underground mines/tunnels
IN226274 India A SYNERGISTIC COMPOSITION OF EMULSION EXPLOSIVE USEFUL FOR BLASTING IN SURFACE MINES AND A PROCESS OF MAKING THE EMULSION EXPLOSIVE
US6884421 USA Pharmaceutical composition for diabetic
IN195193 India A device useful for making manhole or stable hole in the underground mines
IN210868 India AN IMPROVED COG USEFUL FOR SUPPORTING UNDERGROUND MINE ROOFS TUNNELS.
IN221201 India AN IMPROVED METHOD FOR CONTINUOUS EXTRACTION OF COAL /ORE FROM COAL SEAM MINERAL BED IN UNDERGROUND MINES.
IN215022 India A COMPOSITION USEFUL FOR SAFE BLASTING OF COAL IN UNDERGROUND MINES AND OTHER EXCAVATION WORK AND A PROCESS FOR PREPARING THE SAID COMPOSITION
IN215649 India A NOVEL METHOD OF MINING FOR UNDERGROUND EXTRACTION OF COAL FROM A CRITICALLY THICK COAL SEAM STANDING ON PILLARS AND THE DEVELOPMENT MADE ALONG THE ROOF HORIZON
IN215672 India A COMPOSITION USEFUL FOR EXCAVATION WORKS SUCH AS BLASTING IN COAL/NON-COAL SURFACE MINES
IN216755 India AN IMPROVED AIR JET SIEVE
IN215877 India AN IMPROVED ROOF BOLT USEFUL FOR SUPPORTING MINE/TUNNEL ROOFS INSTANTLY AND COMPACTLY
IN222430 India A NOVEL METHOD FOR UNDERGROUND EXTRACTION OF COAL FROM CONTIGUOUS SEAMS / SECTIONS
IN219305 India AN IMPROVED CAVING LONGWALL METHOD FOR WINNING OF COAL FROM THICK SEAM IN SINGLE LIFT UNDER MASSIVE AND HARD ROOF CONDITIONS IN UNDERGROUND MINES
IN220660 India DEVICE FOR SEALING INSIDE AN UPWARD DRILLED BOREHOLE FOR HIGH PRESSURE WATER INJECTION IN UNDERGROUND MINES
IN218221 India A RETRIEVABLE ELECTRO-MECHANICAL BROEHOLE EXTENSOMETER
IN225343 India A PROCESS FOR RECOVERY OF BIOSURFACTANT FROM DISTILLERY WASTE
IN227887 India CONTINUOUS TYPE MULTIPURPOSE TEA SHOOT SORTER
IN230363 India A PROCESS FOR THE RECOVERY OF FINEST CLEANS FROM COAL SLURRY AND AN EQUIPMENT THEREFOR
IN233361 India A NOVEL DEVICE FOR BOTTOM HOLE NON-ELECTRIC INITIATION OF NON-CAP SENSITIVE EXPLOSIVE COLUMN AND A PROCESS THEREFOR
IN231672 India A PROCESS FOR THE SYNTHESIS OF STABILIZED COPOLYMERS USEFUL FOR ENHANCING PETROLEUM RECOVERY FROM HIGH TEMPERATURE SUBTERRANEAN PETROLEUM DEPOSITS
IN231592 India A NOVEL MACHINE FOR DRILLING, CUTTING AND POLISHING FOR THE MANUFACTURE OF SEMI-PRECIOUS STONE FURNITURE AND DECORATIVE ITEMS
IN231589 India A COLD EXPLOSIVE COMPOSITION FOR UNDERGROUND MINES AND OTHER EXCAVATION WORK AND A PROCESS FOR THE PREPARATION OF THE COMPOSITION THEREOF
IN235781 India A COMPOSITION FOR MAKING SLURRY EXPLOSIVE USEFUL FOR PERIMETER BLASTING IN TUNNELING
US7650027 USA Fake document including fake currency detector using integrated transmission and reflective spectral response
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IN240950 India A SLURREY EXPLOSIVE COMPOSITION FOR OPEN CAST MINES AND OTHER EXCAVATION WORKS
IN241684 India A DEVICE FOR COLLECTING AIR BORNE DUST GENERATED BY MOVING VEHICLES
IN242288 India An improved cog useful for supporting underground mine roofs/tunnels
US7912272 USA Fake document including fake currency detector using integrated transmission and reflective spectral response
IN251817 India A method for in-hole delay solid blasting
IN253874 India A process for the preparation of sodium silicate from kimberlite taliling
IN254098 India An emulsion composition useful for blasting hard strata excavation work
US8283173 USA Process utilizing natural carbon-13 isotope for identification of early breakthrough of injection water in oil wells
US8343282 USA Photocatalytic auto-cleaning process of stains
IN256831 India A rock bolt for reinforcing rock strata in a roof or side of mine or tunnel
IN258763 India An equipment for loading blasted coal/mineral from a conventional long wall mine panel
IN259359 India An orientation unit for fruit sorting and grading machine
IN263217 India A method for solid blasting in underground coal mines
IN265746 India A movable canopy for immediate front face of mine or tunnel workings along with roof bolting system of support
2993/DEL/2013 India Wireless strata information system for underground openings
1345/KOL/2013 India A process for production of highly metallised low sulphur directly reduced iron (dri) from iron ore slime and rejected coal
IN266941 India An attachment device for hand held drilling machine to prevent falling of coal dust during vertical drilling in mine roofs
3725/DEL/2013 India A device for measuring roof convergence in mechanized coal mine workings / tunnels / caverns
IN267447 India An emulsion composition for medium and hard strata excavation work
IN267936 India A stowing bunker for hydraulic stowing of sand or pond ash in coal mines
IN268353 India A multi-point anchoring system for grouted-type borehole extensometer for strata movement measurements in underground excavation
IN269614 India A device for providing centerlines in a continuous manner during construction in under ground mines/tunnels
IN270496 India A device for cooling an individual working in an open cast mine or in similar conditions
US9267375 USA Device for roof support of underground mine/tunnel
IN271486 India A device for improved manual grouting of roof bolts in mines
IN271522 India A process utilizing natural Carbon-13 isotope for identification of early breakthrough of injection water in oil wells
3485/DEL/2014 India A novel multi-stage multi-product processing scheme for dry beneficiation of -1.0 mm coal fines by gravity separation using air fluidization on an inclined deck