Assignee
METALLGESELLSCHAFT AG
DE·625 granted patents·10,682 citations·filing 1972–2000
Top patents by PatentIndex Score
625 records- 0198US4165717AProcess for burning carbonaceous materialsMETALLGESELLSCHAFT AG·Filed 1977·Granted Aug 28, 1979·128 cites·20 claims
- 0298US4111158AMethod of and apparatus for carrying out an exothermic processMETALLGESELLSCHAFT AG·Filed 1977·Granted Sep 5, 1978·100 cites·15 claims
- 0398US4025423AProcess for removing monohydric and polyhydric phenols from waste waterMETALLGESELLSCHAFT AG·Filed 1976·Granted May 24, 1977·149 cites·7 claims
- 0497US4444568AMethod of producing fuel gas and process heat fron carbonaceous materialsMETALLGESELLSCHAFT AG·Filed 1982·Granted Apr 24, 1984·125 cites·13 claims
- 0596US4076796ACarrying out endothermic processes in fast fluidized reactor with conventionally fluidized holding reactorMETALLGESELLSCHAFT AG·Filed 1976·Granted Feb 28, 1978·112 cites·11 claims
- 0696US4011066AProcess of purifying gases produced by the gasification of solid or liquid fossil fuelsMETALLGESELLSCHAFT AG·Filed 1975·Granted Mar 8, 1977·98 cites·7 claims
- 0796US3972693AProcess for the treatment of phenol-containing waste water from coal degassing or gasification processesMETALLGESELLSCHAFT AG·Filed 1973·Granted Aug 3, 1976·87 cites·2 claims
- 0896US3966875AProcess for the desulfurization of gasesMETALLGESELLSCHAFT AG·Filed 1973·Granted Jun 29, 1976·95 cites·1 claims
- 0994US4162902ARemoving phenols from waste waterMETALLGESELLSCHAFT AG·Filed 1977·Granted Jul 31, 1979·80 cites·1 claims
- 1093US5631302AProcess of producing methanolMETALLGESELLSCHAFT AG·Filed 1995·Granted May 20, 1997·102 cites·7 claims
- 1193US4716856AIntegral fluidized bed heat exchanger in an energy producing plantMETALLGESELLSCHAFT AG·Filed 1986·Granted Jan 5, 1988·112 cites·24 claims
- 1293US4203915AProcess of producing methanolMETALLGESELLSCHAFT AG·Filed 1978·Granted May 20, 1980·39 cites·3 claims
- 1392US6506516B1Lithium bisoxalatoborate, the production thereof and its use as a conducting saltMETALLGESELLSCHAFT AG·Filed 1999·Granted Jan 14, 2003·121 cites·14 claims
- 1492US5348571AApparatus for dedusting a gas at high temperatureMETALLGESELLSCHAFT AG·Filed 1993·Granted Sep 20, 1994·91 cites·7 claims
- 1592US3944401AProcess for the removal of gaseous impurities from the exhaust gases of a contact-process plant for the production of sulfuric acidMETALLGESELLSCHAFT AG·Filed 1974·Granted Mar 16, 1976·44 cites·21 claims
- 1691US4806158AProcess of reducing fine-grained iron-containing material by means of solid carbonaceous reducing agentsMETALLGESELLSCHAFT AG·Filed 1987·Granted Feb 21, 1989·66 cites·16 claims
- 1791US4515604AProcess of producing a synthesis gas which has a low inert gas contentMETALLGESELLSCHAFT AG·Filed 1983·Granted May 7, 1985·103 cites·1 claims
- 1891US4271086AProduction of methanolMETALLGESELLSCHAFT AG·Filed 1979·Granted Jun 2, 1981·41 cites·2 claims
- 1991US4161393AShift conversion of raw gas from gasification of coalMETALLGESELLSCHAFT AG·Filed 1978·Granted Jul 17, 1979·41 cites·10 claims
- 2090US5137546AProcess and apparatus for electrostatic purification of dust- and pollutant-containing exhaust gases in multiple-field precipitatorsMETALLGESELLSCHAFT AG·Filed 1990·Granted Aug 11, 1992·84 cites·27 claims
- 2190US4539188AProcess of afterburning and purifying process exhaust gasesMETALLGESELLSCHAFT AG·Filed 1984·Granted Sep 3, 1985·51 cites·9 claims
- 2290US3996014AMethanation reactorMETALLGESELLSCHAFT AG·Filed 1975·Granted Dec 7, 1976·68 cites·2 claims
- 2389US5702585AProcess of preparing alkali peroxide solutionsMETALLGESELLSCHAFT AG·Filed 1994·Granted Dec 30, 1997·62 cites·10 claims
- 2489US5558781AProcess for enzymatically degumming vegetable oilMETALLGESELLSCHAFT AG·Filed 1994·Granted Sep 24, 1996·96 cites·10 claims
- 2589US4779182APower supply for an electrostatic filterMETALLGESELLSCHAFT AG·Filed 1986·Granted Oct 18, 1988·84 cites·10 claims
- 2689US4676824AProcess for generating heat and producing sponge ironMETALLGESELLSCHAFT AG·Filed 1985·Granted Jun 30, 1987·32 cites·11 claims
- 2789US4347064AProcess of gasifying fine-grained solid fuelsMETALLGESELLSCHAFT AG·Filed 1981·Granted Aug 31, 1982·74 cites·9 claims
- 2889US4060591AContinuous process for recovering pure, concentrated ammoniaMETALLGESELLSCHAFT AG·Filed 1976·Granted Nov 29, 1977·40 cites·17 claims
- 2988US5762991AContinous process of producing beerMETALLGESELLSCHAFT AG·Filed 1993·Granted Jun 9, 1998·76 cites·22 claims
- 3088US5575982AProcess of purifying exhaust gases produced by combustion of waste materialsMETALLGESELLSCHAFT AG·Filed 1994·Granted Nov 19, 1996·101 cites·19 claims
- 3188US4548797AProcess of removing pollutants from exhaust gasesMETALLGESELLSCHAFT AG·Filed 1983·Granted Oct 22, 1985·55 cites·12 claims
- 3288US4154642AFalling film evaporatorMETALLGESELLSCHAFT AG·Filed 1977·Granted May 15, 1979·63 cites·6 claims
- 3388US4040958AProcess for separating solids from high-boiling hydrocarbons in a plurality of separation stagesMETALLGESELLSCHAFT AG·Filed 1976·Granted Aug 9, 1977·44 cites·8 claims
- 3487US5827901AProcess of producing methanolMETALLGESELLSCHAFT AG·Filed 1997·Granted Oct 27, 1998·93 cites·7 claims
- 3587US5256880AProcess for the qualitative analysis of plastic particlesMETALLGESELLSCHAFT AG·Filed 1992·Granted Oct 26, 1993·58 cites·13 claims
- 3687US4935099AProcess for making wood charcoalMETALLGESELLSCHAFT AG·Filed 1989·Granted Jun 19, 1990·56 cites·13 claims
- 3787US4817563AFluidized bed systemMETALLGESELLSCHAFT AG·Filed 1988·Granted Apr 4, 1989·54 cites·7 claims
- 3886US5527379AProcess for a direct reduction of iron oxide containing materials to form Fe3 CMETALLGESELLSCHAFT AG·Filed 1994·Granted Jun 18, 1996·48 cites·14 claims
- 3986US4097585AProduction of sulfur from Claus process waste gasMETALLGESELLSCHAFT AG·Filed 1977·Granted Jun 27, 1978·29 cites·10 claims
- 4086US4088735AProcess for purifying gases from the gasification of fossil fuelsMETALLGESELLSCHAFT AG·Filed 1977·Granted May 9, 1978·34 cites·5 claims
- 4185US5981819AProcess of generating C3 - and C4 -olefins from a feed mixture containing C4 to C7 olefinsMETALLGESELLSCHAFT AG·Filed 1997·Granted Nov 9, 1999·46 cites·3 claims
- 4285US5308465AMembrane for a gas diffusion electrode, process of manufacturing the membrane, and gas diffusion electrode provided with the membraneMETALLGESELLSCHAFT AG·Filed 1992·Granted May 3, 1994·42 cites·9 claims
- 4385US4933163AProcess of removing hydrogen sulfide from exhaust gasMETALLGESELLSCHAFT AG·Filed 1988·Granted Jun 12, 1990·38 cites·3 claims
- 4485US4505724AWet-process dust-collecting apparatus especially for converter exhaust gasesMETALLGESELLSCHAFT AG·Filed 1983·Granted Mar 19, 1985·63 cites·4 claims
- 4585US4205961AProcess of producing a natural gas substituteMETALLGESELLSCHAFT AG·Filed 1978·Granted Jun 3, 1980·32 cites·3 claims
- 4685US4194889AMethod of and apparatus for processing sulfur-containing exhaust gasMETALLGESELLSCHAFT AG·Filed 1978·Granted Mar 25, 1980·41 cites·15 claims
- 4785US4155792AProcess for producing a honeycomb of synthetic-resin material for use in an electrostatic precipitatorMETALLGESELLSCHAFT AG·Filed 1977·Granted May 22, 1979·60 cites·3 claims
- 4885US3980452AProcess for supplying heat to chemical reactionsMETALLGESELLSCHAFT AG·Filed 1975·Granted Sep 14, 1976·52 cites·2 claims
- 4984US5635147AProcess of treating the gasification residue formed by the gasification of solid fuels in a fluidized bedMETALLGESELLSCHAFT AG·Filed 1995·Granted Jun 3, 1997·51 cites·3 claims
- 5084US5425317AProcess for gasifying waste materials which contain combustible constituentsMETALLGESELLSCHAFT AG·Filed 1993·Granted Jun 20, 1995·64 cites·6 claims
Showing the top 50 of 625 patent records by PatentIndex Score.
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