- Patent Appl.No.
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- Patent No.
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- Comp. Date
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- Title
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- 0205DEL86
|
- 169371
|
- 19860306
|
- A PROCESS
FOR THE PREPARATION OF CATALYSED OXYGEN SCAVENGERS SUITABLE FOR PREVENTION OF METALLIC
CORROSION IN SYSTEMS USING DIFFERENT GRADES OF WATERS
|
- 0274DEL89
|
- 175804
|
- 19890327
|
- AN
IMPROVED PROCESS FOR CALORISING A COMPONENT SELECTED FROM PLAIN CARBON STEEL, STAINLESS
STEELS AND OTHER ALLOY STEELS
|
- 0730DEL87
|
- 170765
|
- 19870821
|
- A PROCESS
FOR THE PREPARATION OF AN INHIBITOR FOR MULTI PURPOSE APPLICATIONS SUCH AS CORROSION
INHIBITION PICKLING AND CLEANING OF METALS AND ALLOYS
|
- 0942DEL88
|
- 169129
|
- 19860306
|
- A PROCESS
FOR THE PREPARATION OF CATALYSED OXYGEN SCAVENGERS SUITABLE FOR REMOVAL OF DISSOLVED
OXYGEN IN WATER
|
- 0943DEL88
|
- 169137
|
- 19860306
|
- A PROCES
FOR THE PREPARATION OF CATALYSED OXYGEN SCAVENGERS SUITABLE FOR REMOVAL OF DISSOLVED
OXYGEN IN WATER
|
- 0959DEL89
|
- 174910
|
- 19891019
|
- A PROCESS
FOR THE PREPARATION OF VAPOUR PHASE INHIBITOR SUITABLE FOR PROTECTION OF FERRO METAL FROM
ATMOSPHERIC CORROSION
|
- 1123DEL85
|
- 164271
|
- 19851231
|
- PROCESS
FOR THE PREPARATION OF A STABILIZER TO INHIBIT AUTOCATALYTIC DECOMPOSITION OF HYDROGEN
PEROXIDE ADDED IN PICKLING BATHS OF COPPER AND COPPER BASED ALLOYS
|
- 1124DEL92
|
- 0
|
- 19921130
|
- AN
IMPROVED HOT-DIP PROCESS FOR GALVANIZING OF STEELS.
|
- 1145DEL86
|
- 166830
|
- 19861224
|
- A PROCESS
FOR THE ENRICHMENT OF SILICA IN COMMERCIAL SODIUM SILICATE SOLUTIONS
|
- 1232DEL91
|
- 0
|
- 19911216
|
- A
COMPOSITION USEFUL FOR THE PREPARATION OF STAINLESS STEEL POWDERS FROM STAINLESS STEEL
SHEETS SCRAPS, RODS THROUGH CHEMICAL ROUTE
|
- 1233DEL91
|
- 0
|
- 19911216
|
- A PROCESS
FOR PREPARATION OF STAINLESS STEEL POWDERS FROM STAINLESS STEEL SHEETS, SCRAPS, RODS
THROUGH CHEMICAL ROUTE
|
- 1257DEL89
|
- 176537
|
- 19891228
|
- A PROCESS
FOR THE PREPARATION OF AN INHIBITOR SUITABLE FOR PROTECTION OF EQUIPMENTS USED IN THE
PRODUCTION OF EDIBLE OIL FROM RICE BRAN
|
- 1278DEL90
|
- 0
|
- 19901218
|
- AN
IMPROVED PROCESS FOR THE AUTOCATYLIC ELECTROLESS DEPOSITION OF NICKEL ON METALLIC SURFACES
FROM ACIDIC BATHS
|
- 1279DEL90
|
- 177938
|
- 19901218
|
- AN
IMPROVED PROCESS FOR THE PICLLING OF BRASS AND OTHER COPPER BASED ALLOYS IN SULPHURIC ACID
HYDROGEN PEROXIDE MIXTURE
|
- 1281DEL90
|
- 178842
|
- 19901218
|
- AN
IMPROVED PROCESS FOR IRON ELECTROFORMING USING CAST IRON AS AN ANODE
|
- 1284DEL90
|
- 177464
|
- 19901218
|
- AN
IMPROVED PROCESS FOR THE PASSIVATION TREATMENT OF GALAVANIZED SURFACE IN LOW CHROMATE BATH
|
- 1199DEL91
|
- 0
|
- 19911206
|
- A PROCESS
FOR THE PREPARATION OF SINTERED MAGNETITE ANODE FOR CATHODIC PROTECTION
|
- 0906DEL88
|
- 176142
|
- 19900123
|
- A DEVICE
FOR THE PRODUCTION OF HIGH QUALITY STEEL FROM DIRECTLY PRODUCED IRON ROD OR SLAB AND A
PROCESS FOR THE PRODUCTION OF HIGH QUALITY STEEL USING THE SAID DEVICE
|
- 0907DEL88
|
- 176341
|
- 19900123
|
- IMPROVEMENTS
IN OR RELATING TO ELECTRO SLAG SMELTING OF DIRECTLY REDUCED IRON TO PRODUCE HIGH QUALITY
STEEL
|
- 0194DEL87
|
- 169887
|
- 19870305
|
- AN
IMPROVED CUPOLA
|
- 0531DEL91
|
- 180408
|
- 19910618
|
- AN
IMPROVED PROCESS FOR MANUFACTURING OF SUPERIOR QUALITY WEAR RESISTANT CERAMICS
|
- 0615DEL92
|
- 0
|
- 19920715
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF CERAMIC CRUCIBLES USEFUL FOR THE DETERMINATION OF
CARBON AND SULPHUR IN METALS AND ALLOYS
|
- 0704DEL91
|
- 0
|
- 19910802
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF ALUMINA BASED WEAR RESISTANT CERAMICS
|
- 0840DEL90
|
- 177992
|
- 19900820
|
- IMPROVEMENTS
IN OR RELATING TO THE PROCESS OF PRODUCTION OF TABULATOR ALUMINA
|
- 0896DEL92
|
- 0
|
- 0
|
- AN
IMPROVED PROCESS FOR THE CONTINUOUS PRODUCTION OF ROD OR A SLAB OF DIRECT REDUCED IRON.
|
- 0910DEL88
|
- 176412
|
- 19900123
|
- IMPROVEMENT
IN OR RELATING TO CONTINUOUS PRODUCTION OF ROD OR SLAB MADE OF DIRECTLY REDUCED IRON USING
IRON RICH MATERIAL FINES AND NON COKING COAL FINES
|
- 1061DEL88
|
- 176064
|
- 19881205
|
- A PROCESS
FOR THE PRODUCTION OF TABULAR ALUMINA
|
- 1098DEL89
|
- 176534
|
- 19891123
|
- AN
IMPROVED PROCESS FOR MAKING FROM INSULATION REFRACTORIES FROM ALUMINA
KYANITE, CHINA CLAY,
FIRECLAY AND OTHER REFRACTORY MATERIALS
|
- 1101DEL86
|
- 167937
|
- 19880311
|
- AN
IMPROVED PROCESS FOR MAKING HIGH QUALITY STEEL DIRECTLY FROM ORE FINES AND NON COKING
FINES
|
- 1173DEL89
|
- 176445
|
- 19910306
|
- AN
IMPROVED PROCESS FOR MAKING RESIN BONDED ALUMINA-GRAPHITE REFRACTORIES
|
- 1200DEL91
|
- 0
|
- 19911206
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF FUSED CAST PRODUCTS
|
- 1205DEL90
|
- 179781
|
- 0
|
- A PROCESS
FOR THE PRODUCTION OF HIGH STRENGTH HIGH TEMPURATURE HIGH ALUMINA(70-90%)HYDRAULIC WHITE
CALCIUM ALUMINATE CEMENT
|
- 1235DEL93
|
- 0
|
- 0
|
- A PROCESS
FOR MAKING FLUXED COMPOSITE REDUCED IRON PELLETS FROM THE FINES OF IRON RICH MATERIAL AND
CARBONACEOUS MATERIALS
|
- 1264DEL93
|
- 0
|
- 19931111
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF WEAR RESISTANT CERAMICS USING FLY ASH
|
- 1283DEL90
|
- 178844
|
- 19901218
|
- AN
IMPROVED PROCESS FOR MAKING DENSE SINTERED SYNTHETIC ZIRCONIA MULLITE GRAINS/AGGREGATES
|
- 0911DEL88
|
- 176413
|
- 19881024
|
- A PROCESS
FOR MAKING DIRECTLY REDUCED AND SINTERED IRON ROAD OR SLABS FROM THE FINES OF IRON RICH
MATERIALS AND NON-COKING COAL FINES
|
- 0763DEL90
|
- 177055
|
- 19900727
|
- A DEVICE
FOR EVALUATING ELECTRICAL CONTACT MATERIALS
|
- 0796DEL86
|
- 168105
|
- 19860908
|
- A PROCESS
FOR THE PRODUCTION OF CREEP RESISTANT STAINLESS STEEL
|
- 0895DEL92
|
- 0
|
- 0
|
- AN
IMPROVED DEVICE FOR THE CONTINUOUS PRODUCTION OF DIRECT REDUCED IRON ROD OR SLAB AND AN
IMPROVED PROCESS THESE FOR USING THE SAID DEVICE.
|
- 1468DEL93
|
- 0
|
- 19931228
|
- AN
IMPROVED DEVICE USEFUL FOR CREEP RUPTURE TESTING OF THIN WALLED TUBE SPECIMAN AT ROOM
ELEVATED TEMPERATURES
|
- 0897DEL89
|
- 175189
|
- 19901217
|
- A PROCESS
FOR PRODUCING STEEL BY USING 100% DIRECTLY REDUCED IRON (DRI) ORE
|
- 1027DEL91
|
- 0
|
- 0
|
- A PROCESS
FOR THE PRODUCTION OF A NOVEL ALLOY CAST IRON WITH IMPROVED WEAR RESISTANT PROPERTIES
|
- 0183DEL88
|
- 172286
|
- 19880310
|
- A PROCESS
FOR THE PRODUCTION OF AG/aGcD COMPOSITE BY ROLL CLADDING TECHNIQUE
|
- 0280DEL86
|
- 164487
|
- 19860325
|
- AN
IMPROVED PROCESS FOR REFINING OF ALUMINIUM AND ITS ALLOYS
|
- 0371DEL93
|
- 0
|
- 19930413
|
- AN
IMPROVED PROCESS FOR DIRECT PRODUCTION OF NEARLY 100% B-SIC WHISKERS FROM RICE HUSK.
|
- 0435DEL90
|
- 178594
|
- 19900508
|
- A PROCESS
FOR MAKING NOVEL LOW SILVER BRAZING FILLER ALLOY FOR ELECRONIC AND VACUUM TUBE INDUSTRIES
|
- 0460DEL86
|
- 169140
|
- 19870811
|
- A PROCESS
FOR THE PRODUCTION OF COMPACTED GRAPHITE IRON
|
- 0485DEL88
|
- 174343
|
- 19890818
|
- AN
IMPROVED PROCESS FOR MAKING SHORT CERAMIC FIBRES/WHISKERS
|
- 0486DEL88
|
- 175602
|
- 19890818
|
- A NEW
PROCESS FOR MAKING OF CO-DEPOSITED SHORT CERAMIC COMPOSITE FIBRES
|
- 0530DEL91
|
- 0
|
- 19910618
|
- AN
IMPROVED PROCESS FOR THE PREPARATION OF SILVER BASE SILVER CADMIUM-OXIDE ALLOY FOR USE AS
ELECTRICAL CONTACTS
|
- 0546DEL92
|
- 178330
|
- 19920623
|
- A PROCESS
FOR THE PRODUCTION OF NI+CR+FE (60%NI + 16%CR + 24%FE) ALLOY HAVING HIGH ELECTRICAL
RESISTIVITY
|
- 0652DEL89
|
- 175028
|
- 19890725
|
- AN
IMPROVED FURNACE FOR MELTING OF METALS
|
- 0752DEL91
|
- 0
|
- 19910814
|
- A PROCESS
FORT CONTINUOUS PRODUCTION OF SUPERPLASTIC ULTRA-HIGH CARBON(UHC) STEEL SHEET
|
- 0801DEL92
|
- 0
|
- 0
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF SUPERPLASTIC CAST IRON THROUGH POWDER ROUTE BY
RAPID SOLDIFICATION PROCESS.
|
- 0802DEL92
|
- 0
|
- 19920908
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF HYPER EUTECTIC ALUMINIUM- SILICON ALLOYS.
|
- 0839DEL90
|
- 177991
|
- 19900820
|
- AN
IMPROVED PROCESS FOR THE PREPARATION OF CADMIUM FOR SILVER BASE ALLOY FOR USE AS
ELECTRICAL CONTACTS
|
- 0909DEL88
|
- 176097
|
- 19900123
|
- A PROCESS
FOR THE PRODUCTION OF IRON BASED COMPOSITE MATERIALS
|
- 0912DEL88
|
- 176163
|
- 19881024
|
- A PROCESS
FOR THE PRODUCTION OF HIGH SPEED CAST STEEL FOR USE AS HIGH SPEED CUTTING TOOL
|
- 0928DEL92
|
- 0
|
- 19921014
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF B-SIC WHISKERS FROM RICE HUSK.
|
- 0938DEL90
|
- 177964
|
- 19900921
|
- A PROCESS
FOR MAKING NOVEL AG/AG-ZN-SN-(U COMPOSITE BY ROLLCLADDING TECHNIQUE FOR ELECTRICAL
CONTACTS
|
- 1000DEL92
|
- 0
|
- 19921104
|
- AN
IMPROVED DEVICE USEFUL FOR CONTINUOUS CASTING OF STEEL.
|
- 1023DEL86
|
- 166170
|
- 19861124
|
- AN
IMPROVED SLURRY ELECTROLYTIC PROCESS FOR THE PRODUCTION OF HIGH PURITY IRON POWDER FROM
SPONGE IRON FINES
|
- 1038DEL88
|
- 178321
|
- 19881129
|
- A PROCESS
FOR THE PRODUCTION OF ALLOYS HAVING ELECTRICAL ACTIVITY
|
- 1108DEL89
|
- 176473
|
- 19910211
|
- A PROCESS
FOR THE PRODUCTION OF SPHEROIDISED HIGH STRENGTH LOW ALLOY (HSLA) STEELS FOR SOFT MAGNETIC
APPLICATIONS
|
- 1109DEL89
|
- 0
|
- 0
|
- A PROCESS
FOR THE PRODUCTION OF SPHEROIDISED HIGH STRENGTH LOW ALLOY (HSLA) STEELS FOR SOFT MAGNETIC
APPLICATIONS
|
- 1162DEL87
|
- 173333
|
- 19871231
|
- A PROCESS
FOR PRODUCTION OF ELECTRICAL CONTACT MATERIAL
|
- 1170DEL89
|
- 178655
|
- 19901218
|
- A PROCESS
FOR THE PRODUCTION OF A NOVEL FLUX USEFUL FOR THE PRODUCTION OF ZINC BASE ALLOYS AND A
PROCESS FOR THE PRODUCTION OF SUCH ALLOYS USING THE FLUX
|
- 1171DEL89
|
- 176444
|
- 19910306
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF ALLOYS
|
- 1172DEL89
|
- 176535
|
- 19910306
|
- A PROCESS
FOR MAKING LOW TUNGSTEN HIGH SPEED FOOL STEELS
|
- 1177DEL90
|
- 0
|
- 19901127
|
- AN
IMPROVED PROCESS FOR EXTRUSION OF MAGNESIUM/MAGNESIUM ALLOY BILLETS
|
- 1181DEL90
|
- 179538
|
- 19901127
|
- AN
IMPROVED PROCESS FOR THE PREPARATION OF CHROMIUM-COPPER ALLOY FOR USE IN ELECTRICAL
APPLIANCES
|
- 1183DEL90
|
- 178026
|
- 19901127
|
- AN
IMPROVED PROCESS OF HEAT TREATMENT FOR MAGNESIUM ALLOYS
|
- 1203DEL90
|
- 180317
|
- 0
|
- A PROCESS
FOR THE PRODUCTION OF FE-MN-AL ALLOYS FOR RELAY CORE APPLICATIONS
|
- 1204DEL90
|
- 180512
|
- 0
|
- A PROCESS
FOR THE PRODUCTION OF FE-MN-AL ALLOYS FOR SOFT MAGNETIC APPLICATIONS
|
- 1253DEL89
|
- 176695
|
- 19901218
|
- IMPROVED
PROCESS FOR THE PREPARATION OF DENTAL AMALGAM ALLOY
|
- 1280DEL90
|
- 178597
|
- 19901218
|
- A NOVEL
FLUX FOR THE PRODUCTION OF SUPERIOR QUALITY ZINC BASE ALLOYS
|
- 1323DEL90
|
- 180358
|
- 19901226
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF MAGNESIUM ALLOYS
|
- 0897DEL92
|
- 0
|
- 0
|
- AN
IMPROVED PROCESS FOR CONTINUOUS PRODUCTION OF STEEL BY THE ELECTRO SLAG SMELTING OF A ROD
OR A SLAB MADE OF DIRECT REDUCED IRON.
|
- 0620DEL90
|
- 179958
|
- 19900622
|
- AN
IMPROVED PROCESS FOR MAKING LOW SILVER BRAZING FILLER ALLOY FOR ELECTRONIC INDUSTRY
|
- 0073DEL93
|
- 0
|
- 19930128
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF HIGH ALUMINA CERAMICS HAVING CONSISTENT QUALITY
|
- 0436DEL90
|
- 0
|
- 0
|
- AN
IMPROVED PROCESS FOR THE PRODOCTION OF ELECTROLYTIC IRON POWDER FROM SPONGE IRON FINES
|
- 1173DEL90
|
- 178179
|
- 19911126
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF HIGH PURITY FERRIC OXIDE FROM IRON POWDER
|
- 0126DEL93
|
- 0
|
- 19930215
|
- A PROCESS
FOR THE RECOVERY OF COPPER AND FERRO NICKEL FROM COPPER NICKEL CONTAINING ANODE SLAG
GENERATED IN COPPER PLANTS
|
- 0127DEL93
|
- 0
|
- 19930215
|
- A PROCESS
FOR THE RECOVERY OF COPPER AND FERRO NICKEL CONTAINING ANODE SLAG GENERATED IN COPPER
PLANTS
|
- 0196DEL93
|
- 0
|
- 19930303
|
- AN
IMPROVED PROCESS FOR THE EXTRACTION OF COPPER FROM CHALCOPYRITE
|
- 0224DEL90
|
- 0
|
- 19900308
|
- A PROCESS
FOR THE PRODUCTION OF ELECTROLYTIC MANGANESE DIOXIDE ACTIVATED MANGANESE DIOXIDE AND
CHEMICAL MANGANESE DIOXIDE FROM NATURAL MANGANESE ORES
|
- 0273DEL89
|
- 175525
|
- 19890327
|
- AN
IMPROVED PROCESS FOR REFINING OF PIG IRON BY REMOVING SILICON PHOSPHORUS & SULPHUR IN
A SINGLE STEP WITHOUT USING ANY GASEOUS OXYGEN
|
- 0372DEL93
|
- 0
|
- 19930413
|
- A PROCESS
FOR THE PRODUCTION OF CHEMICAL MANGANESE DIOXIDE AND ACTIVATED MANGANESE DIOXIDE AS A BY
PRODUCT FROM NATURAL MANGANESE ORES.
|
- 0534DEL92
|
- 0
|
- 19920618
|
- A PROCESS
FOR THE REMOVAL OF SILICA AND SULPHUR FROM LOW GRADE TUNGSTEN CONCENTRATES
|
- 0753DEL91
|
- 0
|
- 19910814
|
- AN
IMPROVED FOR BETTER COBALT RECOVERY FROM ROAST REDUCED SEA NODULES USING TWO STAGE
AMMONIACAL LEACHING
|
- 0866DEL91
|
- 0
|
- 19910918
|
- A PROCESS
FOR THE SELECTIVE EXTRACTION OF GOLD AND SILVER FROM CHALCOPYRITE CONCENTRATES THROUGH
COMBINED PRESSURE THIOUREA LEACHING
|
- 0937DEL90
|
- 177999
|
- 19900921
|
- A PROCESS
FOR RECOVERING OF NICKEL FROM SPENT NICKEL CATALYST (NICKEL ASH)
|
- 0954DEL88
|
- 175737
|
- 19881104
|
- AN
IMPROVED PROCESS FOR THE REDUCTIVE LEACHING OF POLYMETALLIC MANGANIFERROUS SEA NODULES FOR
THE RECOVERY OF COPPER NICKEL AND COBALT
|
- 0997DEL93
|
- 0
|
- 19930908
|
- AN
IMPROVED PROCESS FOR THE PRODUCTION OF ZINC SULPHATE FROM ZINC SILICATE ORE
|
- 1031DEL92
|
- 0
|
- 19921111
|
- AN
IMPROVED PROCESS FOR THE EXTRACTION OF METALLIC VALUES FROM SEA NODULES.
|
- 1032DEL92
|
- 0
|
- 19921111
|
- AN
IMPROVED PROCESS FOR THE EXTRACTION OF METALLIC VALUES FROM THE POLYMETALLIC SEA NODULES.
|
- 1182DEL90
|
- 179539
|
- 19901127
|
- AN
IMPROVED PROCESS FOR EXTRACTION OF NICKEL,COPPER AND COBALT FROM MAGANESE SEA NODULES
USING LIGNITE AS REDUCTANT
|
- 1254DEL89
|
- 176480
|
- 19891228
|
- A PROCESS
FOR RECOVERING OF GOLD FROM DROSS GENERATED DURING GOLD REFINING THROUGH A CYANIDE FREE
ROUTE
|
- 1278DEL91
|
- 0
|
- 0
|
- A PROCESS
FOR THE RECOVERY OF COPPER AND FERRO NICKEL FROM THE COPPER CONVERTER SLAG OF COPPER PLANT
|
- 1282DEL90
|
- 178843
|
- 19901218
|
- AN
IMPROVED PROCESS FOR EXTRACTION OF NICKEL AND COBALT FROM OVERBURDEN OF CHROMITE ORES
|
- 1285DEL90
|
- 178480
|
- 19901218
|
- AN
IMPROVED PROCESS FOR THE EXTRACTION OF NICKEL, COPPER AND COBALT FROM MANGANESE SEA
NODULES USING HIGH VOLATILE NON COKING COAL AS REDUCTANT
|
- 0697DEL92
|
- 0
|
- 0
|
- AN
IMPROVED PROCESS FOR DIRECT ELECTROWINNING OF METALS FROM SEA NODULES FOR THE RECOVERY OF
COPPER, NICKEL & COBALT
|
