Assignee
SUMITOMO DUREZ CO
JP·61 granted patents·847 citations·filing 1974–2000
Top patents by PatentIndex Score
61 records- 0197US4109057AMethod for accelerated curing of phenolic resin adhesivesSUMITOMO DUREZ CO·Filed 1977·Granted Aug 22, 1978·83 cites·9 claims
- 0293US4252700AResin binder for foundry sand cores and moldsSUMITOMO DUREZ CO·Filed 1979·Granted Feb 24, 1981·34 cites·21 claims
- 0390US4157993AResin-coated sand compositionsSUMITOMO DUREZ CO·Filed 1977·Granted Jun 12, 1979·26 cites·15 claims
- 0489US4426484AMethod for accelerating cure of resole type phenolic resinsSUMITOMO DUREZ CO·Filed 1981·Granted Jan 17, 1984·47 cites·7 claims
- 0588US4051098AMethod of preparing shaped active carbonSUMITOMO DUREZ CO·Filed 1976·Granted Sep 27, 1977·39 cites·10 claims
- 0686US4072531APlugging compositions for blast furnace tap holesSUMITOMO DUREZ CO·Filed 1976·Granted Feb 7, 1978·28 cites·6 claims
- 0779US4345003AResol phenolic resin binder for hot coating of foundry sandSUMITOMO DUREZ CO·Filed 1980·Granted Aug 17, 1982·23 cites·16 claims
- 0877US4238428AProcess for making a prilled productSUMITOMO DUREZ CO·Filed 1978·Granted Dec 9, 1980·12 cites·3 claims
- 0976US4082661AActivated carbon and preparation thereofSUMITOMO DUREZ CO·Filed 1975·Granted Apr 4, 1978·32 cites·10 claims
- 1073US4136624AIncinerator for refuse in containers and method of incineration thereforSUMITOMO DUREZ CO·Filed 1977·Granted Jan 30, 1979·32 cites·4 claims
- 1172US4007233ARubber cement compositionsSUMITOMO DUREZ CO·Filed 1974·Granted Feb 8, 1977·19 cites·10 claims
- 1271US4369263AFriction material containing steel wool as reinforcing agentSUMITOMO DUREZ CO·Filed 1980·Granted Jan 18, 1983·19 cites·11 claims
- 1371US4131582AMethod for preparing stable aqueous emulsion of phenolic resinSUMITOMO DUREZ CO·Filed 1977·Granted Dec 26, 1978·27 cites·6 claims
- 1471US4097443AMethod for manufacturing foundry moldsSUMITOMO DUREZ CO·Filed 1975·Granted Jun 27, 1978·13 cites·9 claims
- 1570US6326453B2Process for producing phenol resinSUMITOMO DUREZ CO·Filed 2000·Granted Dec 4, 2001·9 cites·5 claims
- 1668US4468486ACoated sand and method for producingSUMITOMO DUREZ CO·Filed 1982·Granted Aug 28, 1984·19 cites·40 claims
- 1767US4216299AColor developer for pressure-sensitive copying paperSUMITOMO DUREZ CO·Filed 1977·Granted Aug 5, 1980·12 cites·6 claims
- 1867US4031276APreparation of densified wood impregnated with phenolic resinsSUMITOMO DUREZ CO·Filed 1975·Granted Jun 21, 1977·17 cites·10 claims
- 1966US4539343ARefractory materialSUMITOMO DUREZ CO·Filed 1984·Granted Sep 3, 1985·15 cites·9 claims
- 2066US4196114AProcess for producing resin-coated foundry sandSUMITOMO DUREZ CO·Filed 1977·Granted Apr 1, 1980·15 cites·7 claims
- 2165US4698370AProduction of phenolic resin composite foamSUMITOMO DUREZ CO·Filed 1986·Granted Oct 6, 1987·24 cites·8 claims
- 2263US4427800APhenolic resin for refractory usesSUMITOMO DUREZ CO·Filed 1982·Granted Jan 24, 1984·15 cites·8 claims
- 2361US4452927AResin coated sand for shell molding processSUMITOMO DUREZ CO·Filed 1983·Granted Jun 5, 1984·15 cites·9 claims
- 2461US3969321AManufacturing process for producing reaction products of phenol-formaldehyde resins with liquid chain-growth polymers of hydrocarbon dienesSUMITOMO DUREZ CO·Filed 1974·Granted Jul 13, 1976·10 cites·14 claims
- 2560US4419477APowder phenolic resin composition for dry process resin-bonded feltSUMITOMO DUREZ CO·Filed 1982·Granted Dec 6, 1983·14 cites·7 claims
- 2659US6372862B1Phenolic resin-based adhesive composition and process for producing the sameSUMITOMO DUREZ CO·Filed 2000·Granted Apr 16, 2002·2 cites·16 claims
- 2759US4238429APrilling processSUMITOMO DUREZ CO·Filed 1978·Granted Dec 9, 1980·13 cites·7 claims
- 2859US4216300AColor developer for pressure-sensitive copying paperSUMITOMO DUREZ CO·Filed 1977·Granted Aug 5, 1980·11 cites·8 claims
- 2956US4694028AManufacturing method for phenol resin foamSUMITOMO DUREZ CO·Filed 1986·Granted Sep 15, 1987·14 cites·10 claims
- 3056US4112160ASolid adherend substrates bonded with rubber cement compositionsSUMITOMO DUREZ CO·Filed 1976·Granted Sep 5, 1978·15 cites·21 claims
- 3154US4459374AFoundry binder compositionSUMITOMO DUREZ CO·Filed 1983·Granted Jul 10, 1984·10 cites·16 claims
- 3253US4115327APhenolic resin color developing compositions for copying papers and methods of preparationSUMITOMO DUREZ CO·Filed 1977·Granted Sep 19, 1978·10 cites·11 claims
- 3352US4220441AApparatus for making prills from melted substanceSUMITOMO DUREZ CO·Filed 1978·Granted Sep 2, 1980·9 cites·8 claims
- 3451US5034370AColor developer for pressure-sensitive recording paperSUMITOMO DUREZ CO·Filed 1989·Granted Jul 23, 1991·5 cites·14 claims
- 3550US4460717AResin coated sand composition and method of producing sameSUMITOMO DUREZ CO·Filed 1983·Granted Jul 17, 1984·10 cites·15 claims
- 3650US4290928ABinder for dry hot coat foundry processSUMITOMO DUREZ CO·Filed 1980·Granted Sep 22, 1981·11 cites·17 claims
- 3749US4647631AModified liquid resole phenolic resinous composition for friction materialsSUMITOMO DUREZ CO·Filed 1986·Granted Mar 3, 1987·10 cites·15 claims
- 3848US4870154AMethod of producing a quick-curing novolac phenolic resin using ammonium halidesSUMITOMO DUREZ CO·Filed 1987·Granted Sep 26, 1989·8 cites·10 claims
- 3948US4459376AResin-coated sand for shell-molds and method for producing sameSUMITOMO DUREZ CO·Filed 1982·Granted Jul 10, 1984·9 cites·20 claims
- 4048US4179365AProcess for treating waste waterSUMITOMO DUREZ CO·Filed 1978·Granted Dec 18, 1979·16 cites·4 claims
- 4148US4122211AProcess for coating electric or electronic elementsSUMITOMO DUREZ CO·Filed 1976·Granted Oct 24, 1978·13 cites·9 claims
- 4247US4452926AResin-coated sand composition and method for producing sameSUMITOMO DUREZ CO·Filed 1982·Granted Jun 5, 1984·11 cites·27 claims
- 4346US4066588ACold-curing binder for foundry sand cores and moldsSUMITOMO DUREZ CO·Filed 1976·Granted Jan 3, 1978·5 cites·14 claims
- 4444US4529751AResin coated sand for castingSUMITOMO DUREZ CO·Filed 1983·Granted Jul 16, 1985·7 cites·10 claims
- 4543US4125502APolyvinyl acetate-modified phenolic resin compositionSUMITOMO DUREZ CO·Filed 1975·Granted Nov 14, 1978·6 cites·7 claims
- 4642US4460716ACoated sand composition and method for producing sameSUMITOMO DUREZ CO·Filed 1983·Granted Jul 17, 1984·4 cites·20 claims
- 4741US4185002AMethod for manufacturing foundry sand cores and moldsSUMITOMO DUREZ CO·Filed 1975·Granted Jan 22, 1980·4 cites·6 claims
- 4840US4501836ALiquid refractory binderSUMITOMO DUREZ CO·Filed 1983·Granted Feb 26, 1985·8 cites·18 claims
- 4940US4166166AProcess for producing acetophenone-modified phenolic resinSUMITOMO DUREZ CO·Filed 1978·Granted Aug 28, 1979·3 cites·14 claims
- 5040US4006081AMethod for preventing gelation of thermosetting resins in waste waterSUMITOMO DUREZ CO·Filed 1974·Granted Feb 1, 1977·2 cites·3 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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