Assignee
SEITETSU KAGAKU CO LTD
JP·47 granted patents·2,049 citations·filing 1974–1991
Top patents by PatentIndex Score
47 records- 0197US4340706AAlkali metal acrylate or ammonium acrylate polymer excellent in salt solution-absorbency and process for producing sameSEITETSU KAGAKU CO LTD·Filed 1980·Granted Jul 20, 1982·421 cites·25 claims
- 0295US4590227AWater-swellable elastomer compositionSEITETSU KAGAKU CO LTD·Filed 1984·Granted May 20, 1986·202 cites·15 claims
- 0395US4541871AWater-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing sameSEITETSU KAGAKU CO LTD·Filed 1984·Granted Sep 17, 1985·235 cites·11 claims
- 0493US4863989AWater-absorbent resin compositionSEITETSU KAGAKU CO LTD·Filed 1987·Granted Sep 5, 1989·46 cites·2 claims
- 0593US4507438AWater-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing sameSEITETSU KAGAKU CO LTD·Filed 1982·Granted Mar 26, 1985·184 cites·16 claims
- 0690US4683274AProcess for producing a water-absorbent resinSEITETSU KAGAKU CO LTD·Filed 1985·Granted Jul 28, 1987·226 cites·10 claims
- 0789US4732968AProcess for granulating a water-absorbent resin employing (a) water (b) inorganic powder & (c) surfactant in an inert solventSEITETSU KAGAKU CO LTD·Filed 1986·Granted Mar 22, 1988·53 cites·11 claims
- 0887US5075373AWater retention material with water-absorbencySEITETSU KAGAKU CO LTD·Filed 1989·Granted Dec 24, 1991·50 cites·2 claims
- 0985US4972019AWater-absorbent resin compositionSEITETSU KAGAKU CO LTD·Filed 1989·Granted Nov 20, 1990·27 cites·3 claims
- 1085US4684377AProcess for producing oxygen-enriched gasSEITETSU KAGAKU CO LTD·Filed 1986·Granted Aug 4, 1987·58 cites·4 claims
- 1183US4661125AProcess for producing high concentration oxygen by a pressure-swing-adsorption methodSEITETSU KAGAKU CO LTD·Filed 1985·Granted Apr 28, 1987·54 cites·7 claims
- 1281US4981699AMethod of preparing an edible composition and product resulting therefromSEITETSU KAGAKU CO LTD·Filed 1990·Granted Jan 1, 1991·55 cites·21 claims
- 1381US4529412AProcess for obtaining high concentration argon by pressure-swing-adsorptionSEITETSU KAGAKU CO LTD·Filed 1983·Granted Jul 16, 1985·44 cites·9 claims
- 1477US4714791AProcess for recovering primary normal aliphatic higher alcoholsSEITETSU KAGAKU CO LTD·Filed 1986·Granted Dec 22, 1987·23 cites·15 claims
- 1576US4807615AMethod for anesthetizing aquatic animalsSEITETSU KAGAKU CO LTD·Filed 1987·Granted Feb 28, 1989·32 cites·10 claims
- 1675US4986835AProcess for separating and recovering carbonic acid gas from gas mixture by adsorptionSEITETSU KAGAKU CO LTD·Filed 1989·Granted Jan 22, 1991·36 cites·6 claims
- 1775US4968787AMethod for treating glycosideSEITETSU KAGAKU CO LTD·Filed 1987·Granted Nov 6, 1990·40 cites·10 claims
- 1875US4581044AProcess for separating carbonic acid gas from methane-rich gasSEITETSU KAGAKU CO LTD·Filed 1984·Granted Apr 8, 1986·33 cites·10 claims
- 1974US4569909AProcess for preparing uridine diphosphate-N-acetylgalactosamineSEITETSU KAGAKU CO LTD·Filed 1983·Granted Feb 11, 1986·16 cites·6 claims
- 2074US4245127AProcess for chlorinating xylenolsSEITETSU KAGAKU CO LTD·Filed 1976·Granted Jan 13, 1981·16 cites·7 claims
- 2174US4054499AProcess for producing 2-chloropyridineSEITETSU KAGAKU CO LTD·Filed 1976·Granted Oct 18, 1977·11 cites·7 claims
- 2273US4599177AProcess for removal of mercury from waste waterSEITETSU KAGAKU CO LTD·Filed 1984·Granted Jul 8, 1986·34 cites·15 claims
- 2362US4985052AProcess for producing high purity oxygen gas from airSEITETSU KAGAKU CO LTD·Filed 1988·Granted Jan 15, 1991·25 cites·2 claims
- 2461US4124646AProcess for producing thioanisoleSEITETSU KAGAKU CO LTD·Filed 1976·Granted Nov 7, 1978·8 cites·6 claims
- 2559US4273941AProcess for producing p-hydroxybenzaldehydeSEITETSU KAGAKU CO LTD·Filed 1979·Granted Jun 16, 1981·4 cites·12 claims
- 2659US4070305AProcess for regenerating catalystSEITETSU KAGAKU CO LTD·Filed 1976·Granted Jan 24, 1978·18 cites·16 claims
- 2758US4740578AProcess for producing polythiobisphenols and process for producing mercaptophenols by the hydrogenolysis of the sameSEITETSU KAGAKU CO LTD·Filed 1986·Granted Apr 26, 1988·6 cites·55 claims
- 2856US4849138AMethod of producing alkali metal benzenesulfinatesSEITETSU KAGAKU CO LTD·Filed 1987·Granted Jul 18, 1989·5 cites·33 claims
- 2956US4152296AProcess for preparing catalysts for removal of nitrogen oxidesSEITETSU KAGAKU CO LTD·Filed 1977·Granted May 1, 1979·15 cites·20 claims
- 3052US4792612AThiophene derivatives and methods for producing the sameSEITETSU KAGAKU CO LTD·Filed 1988·Granted Dec 20, 1988·3 cites·2 claims
- 3152US4195041AProcess for producing p-hydroxybenzaldehydeSEITETSU KAGAKU CO LTD·Filed 1978·Granted Mar 25, 1980·3 cites·13 claims
- 3250US4348201ATanning process and tanning compositionsSEITETSU KAGAKU CO LTD·Filed 1980·Granted Sep 7, 1982·8 cites·27 claims
- 3350US4172912AProcess for adhering polyethylene to steel substratesSEITETSU KAGAKU CO LTD·Filed 1977·Granted Oct 30, 1979·13 cites·8 claims
- 3449US4880888AProcess for producing a water-absorbent resinSEITETSU KAGAKU CO LTD·Filed 1987·Granted Nov 14, 1989·7 cites·13 claims
- 3549US4314803ATanning methodSEITETSU KAGAKU CO LTD·Filed 1979·Granted Feb 9, 1982·6 cites·13 claims
- 3648US4865882AMethod for powder coating of metallic articlesSEITETSU KAGAKU CO LTD·Filed 1988·Granted Sep 12, 1989·10 cites·8 claims
- 3748US3969205AProcess for producing 2-chloropyridineSEITETSU KAGAKU CO LTD·Filed 1974·Granted Jul 13, 1976·3 cites·15 claims
- 3843US5101049ANovel thiophene derivatives and methods for producing the sameSEITETSU KAGAKU CO LTD·Filed 1990·Granted Mar 31, 1992·2 cites·10 claims
- 3943US4835317A4-tert.-butyl-1,2-benzenedithiol, complex compounds derived therefrom, and a method of producing the sameSEITETSU KAGAKU CO LTD·Filed 1988·Granted May 30, 1989·2 cites·1 claims
- 4037US5102858AHeat-sensitive recording materials containing high purity bis(4-hydroxyphenyl)sulfidesSEITETSU KAGAKU CO LTD·Filed 1989·Granted Apr 7, 1992·1 cites·2 claims
- 4137US4604349AProcess for preparing uridine diphosphate-N-acetylgalactosamineSEITETSU KAGAKU CO LTD·Filed 1985·Granted Aug 5, 1986·3 cites·2 claims
- 4234US4943655ASalt of 5-acetyl-2-alkylbenzenesulfonic acidSEITETSU KAGAKU CO LTD·Filed 1989·Granted Jul 24, 1990·0 cites·2 claims
- 4333US4853158AProcess for preparing N,N-dialkylaniline salt of 5-acetyl-2-alkylbenzene sulfonic acidSEITETSU KAGAKU CO LTD·Filed 1988·Granted Aug 1, 1989·0 cites·8 claims
- 4431US4722917AAnti-I sorbentSEITETSU KAGAKU CO LTD·Filed 1985·Granted Feb 2, 1988·5 cites·16 claims
- 4529US4990450AMethod of producing endo-α-N-acetylgalactosaminidase from microorganismsSEITETSU KAGAKU CO LTD·Filed 1988·Granted Feb 5, 1991·1 cites·2 claims
- 4627US4713100AAdsorption apparatusSEITETSU KAGAKU CO LTD·Filed 1986·Granted Dec 15, 1987·5 cites·3 claims
- 4726US5175372AProcess of producing high purity bis(4-hydroxyphenyl)sulfides and heat-sensitive recording materials containing the sameSEITETSU KAGAKU CO LTD·Filed 1991·Granted Dec 29, 1992·0 cites·8 claims
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