"I think there is a world market for maybe five computers."
Thomas Watson, chairman of IBM ; 1943
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5603821 | Low-aluminum boron beta zeolite A crystalline low-aluminum boron beta zeolite is prepared using a diquaternary ion as a template.... | 02/18/1997 |
| 5593573 | Demetalation of hydrocarbonaceous feedstocks using sulfuric acid and salts thereof Sulfuric acids or salts thereof are used to remove metals, particularly organically-bound calcium, from hydrocarbonaceous feedstocks. An aqueous solution of the acid or its salts is used to extract the metals from the feedstock prior to processing.... | 01/14/1997 |
| 5464623 | Process for pelletizing insecticidal N-hydrocarboyl phosphoroamidothioates and phosphoroamidodithioates Insecticidal pellet compositions of N-hydrocarboyl phosphoroamidothioates and phosphoroamidodithioates are provided. These compositions have improved odor control, thermal stability, attrition resistance, bulk density and handling characteristics over the... | 11/07/1995 |
| 5409598 | Method of hydroprocessing On-stream catalyst replacement hydroprocessing method wherein an upstream mixture of hydrogen and hydrocarbon liquid counter flows through a downwardly moving bed of hydroprocessing catalyst in a reactor vessel. The mixed feed stream of hydrogen and liqui... | 04/25/1995 |
| 5393407 | Hydrocarbon conversion utilizing a low-aluminum boron beta zeolite A crystalline low-aluminum boron beta zeolite is prepared using a diquaternary ion as a template.... | 02/28/1995 |
| 5364546 | Lubricating oil compositions containing very long chain alkylphenyl poly(oxyalkylene) aminocarbamates Disclosed are alkylphenyl poly(oxyalkylene) aminocarbamates having at least one basic nitrogen and an average molecular weight of about 800 to 6,000 and wherein the alkyl group contains at least 40 carbon atoms. Also disclosed are lubricating oil composit... | 11/15/1994 |
| 5315053 | Normally liquid alpha-olefin oligomers useful as base stocks and viscosity index improvers, and lubricating oils containing same A lubricating oil composition comprising a normally liquid alpha-olefin oligomer consisting essentially of repeating units having the structural formula: ##STR1## wherein x represents an integer from 3 to 11, inclusive; and y represents the number of... | 05/24/1994 |
| 5312965 | Lubricating oil composition containing substantially straight chain alkylphenyl poly(oxypropylene) aminocarbamates Disclosed are alkylphenyl poly(oxypropylene) aminocarbamates having at least one basic nitrogen and an average molecular weight of about 600 to 6,000 and wherein the alkyl group is substantially straight-chain of at least 15 carbon atoms. Also disclosed a... | 05/17/1994 |
| 5312460 | Fuel compositions containing substantially straight chain alkylphenyl poly (oxypropylene) amino carbamates Disclosed is a fuel composition comprising a hydrocarbon boiling in the gasoline or diesel range and from about 30 to about 5,000 parts per million of an alkylphenyl poly(oxypropylene) aminocarbamate having at least one basic nitrogen and an average molec... | 05/17/1994 |
| 5270018 | Apparatus for withdrawing a particulate solid from a packed, non-fluidized bed Apparatus for withdrawing particulate spent catalyst particles from a packed, non-fluidized bed of such particles in contact with a liquid medium within a vessel wherein the apparatus is a withdrawal conduit or pipe which has an inlet that opens within th... | 12/14/1993 |
| 5261461 | Pipeline rehabilitation articulated gasketed-joint pipe A liner pipe comprising sections of polyethylene pipe connected by articulated gasketed joints of bell and spigot design which are specifically adapted for ease of compression lining of large diameter pipe with minimum disruption to surface traffic and pi... | 11/16/1993 |
| 5246604 | Grease composition with improved extreme pressure and antiwear properties Disclosed is a grease composition comprising a major amount of a lubricating oil base vehicle, a lithium gellant in an amount sufficient to thicken the base vehicle to grease consistency, an alkali-metal borate in an amount sufficient to impart extreme-pr... | 09/21/1993 |
| 5246605 | Polyurea-based grease with metal borate and antimony additives Disclosed is a grease composition comprising a major amount of a lubricating oil base vehicle, a polyurea gellant in an amount sufficient to thicken the base vehicle to grease consistency, an alkali-metal borate in an amount sufficient to impart extreme-p... | 09/21/1993 |
| 5238662 | Processes for recovering precious metals Disclosed is a process for recovering precious metals using a combination of smelting and an effective utilization of molten salt chlorination. More specifically, disclosed is a process including the steps of (i) contacting, for example, a matte with a ch... | 08/24/1993 |
| 5177276 | Alpha-olefin oligomers useful as base stocks and viscosity index improvers, and lubricating oils containing same An alpha-olefin oligomer consisting essentially of repeating units having the structural formula: ##STR1## wherein x represents an integer from 3 to 11, inclusive; and y represents the number of repeating units in the oligomer such that the weight av... | 01/05/1993 |
| 5166111 | Low-aluminum boron beta zeolite A crystalline low-aluminum boron beta zeolite is prepared using a diquaternary ion as a template.... | 11/24/1992 |
| 5166112 | Isomerization catalyst and process for its use The present invention is a process and a catalyst for isomerizing normal and slightly branched C4 to C7 hydrocarbons. The catalyst comprises a Group VIII metal on Beta zeolite.... | 11/24/1992 |
| 5160601 | Hydrocarbon conversion with octane-enhancing catalysts Novel hydrocarbon conversion catalysts and methods for their preparation are disclosed. The catalysts are particularly appropriate for the conversion of hydrocarbon feeds to high octane gasoline, while increasing light cycle oil and decreasing heavy cycle... | 11/03/1992 |
| 5149421 | Catalytic dewaxing process for lube oils using a combination of a silicoaluminophosphate molecular sieve catalyst and an aluminosilicate zeolite catalyst The present invention relates to a process for catalytically dewaxing a hydrocarbon oil feedstock by contacting the feedstock with a combination of a catalyst comprising an intermediate pore size silicoaluminophosphate molecular sieve and a hydrogenation ... | 09/22/1992 |
| 5141660 | Monoalkylamine complexes of borated alkyl catechols and lubricating oil compositions containing the same Borated alkyl catechols can be stabilized by the addition of certain defined monoalkylamines. Lubricating oils containing a borated alkyl catecholmonoalkylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engin... | 08/25/1992 |
| 5135641 | Catalytic cracking process employing silica/alumina cogel catalysts Novel hydrocarbon conversion catalysts and methods for their preparation and use are disclosed. The catalysts are particularly appropriate for the conversion of hydrocarbon feeds to high octane gasoline, while increasing light cycle oil and decreasing hea... | 08/04/1992 |
| 5120425 | Use of zeolite SSZ-33 in hydrocarbon conversion processes A crystalline zeolite SSZ-33 is prepared using a quaternary ion as a template wherein said zeolite is used in hydrocarbon conversion processes.... | 06/09/1992 |
| 5113375 | Method and apparatus for testing geophones A LCD display is driven by certain elements to indicate the responses of a geophone to various tests as a waveform. Waveforms are displayed for an impulse tests, wherein a current pulse is applied to the geophone and the response is displayed, and for a t... | 05/12/1992 |
| 5108633 | Long chain aliphatic hydrocarbyl amine additives having an oxyalkylene hydroxy connecting group Long chain aliphatic hydrocarbyl amine additives which comprise a long chain aliphatic hydrocarbyl component, an amine component and an oxy-alkylene hydroxy connecting group connecting the aliphatic hydrocarbyl component and amine component are useful as ... | 04/28/1992 |
| 5104486 | Alkenyl succinic anhydride composition An improved liquid alkenyl succinic anhydride composition having superior paper sizing properties. There is also disclosed a method for the sizing of paper and a method for imparting water-repellency to cellulosic fabrics using the composition of the inve... | 04/14/1992 |
| 5098230 | Method for withdrawing a particulate solid from a packed, fluidized bed A method is disclosed for withdrawing particulate spent catalyst particles from a packed, non-fluidized bed of such particles in contact with a liquid medium within a vessel having a withdrawal conduit or pipe which has an inlet that opens within the bott... | 03/24/1992 |
| 5098554 | Expedient method for altering the yield distribution from fluid catalytic cracking units A fluid catalytic cracking unit equipped with multiple feed injection points along the length of the riser is operated such that all of the fresh feed is charged to one of different feed injection points, depending on the ratio of light distillate (gasoli... | 03/24/1992 |
| 5094991 | Slurry catalyst for hydroprocessing heavy and refractory oils Group VIB metal sulfide slurry catalysts having a pore volume in the pore size range 10 to 300Å radius of at least 0.1 cc/g. Also, Group VIB metal sulfide catalysts having a surface area of at least 20 m2 /g. Suitable Group VIB metals are moly... | 03/10/1992 |
| 5092988 | System for monitoring injection water quality using filtration, pressure regulation and mass measuring An apparatus for testing water quality for subsurface injection that provides for samples of infinite volume to be passed over a membrane filter at a constant pressure. The apparatus uses a positive displacement pump drawing suction on the water source an... | 03/03/1992 |
| 5089461 | Chromium/tin mixture as sulfur dioxide oxidation promoter for FCC units Controlling sulfur oxide emissions from FCC regenerator flue gas by mixing a sulfur sorbent in the circulating inventory and having present in the regeneration zone a chromium/tin sulfur dioxide oxidation promoter.... | 02/18/1992 |
| 5087347 | Silicoaluminophosphate hydrocarbon conversion process using SM-3 A silicoaluminophosphate molecular sieve is disclosed and is characterized in that the P2 O5 to alumina mole ratio at the surface is about 0.80 or less, the P2 O5 to alumina mole ratio of the bulk is 0.96 or gre... | 02/11/1992 |
| 5082986 | Process for producing lube oil from olefins by isomerization over a silicoaluminophosphate catalyst The present invention relates to a process for producing a C20 + lube oil from olefins or reducing the pour point of a lube oil comprising isomerizing the olefins over a catalyst comprising an intermediate pore size silicoaluminophosphate molec... | 01/21/1992 |
| 5076915 | Apparatus for removing suspended solids from a liquid Disclosed is a gravity settler for separating finely divided solids such as coal fines from a liquid such as a mixture of coal oil and agglomerating agent by agglomeration. A feed slurry comprising finely divided solids and a liquid mixture of product oil... | 12/31/1991 |
| 5071998 | Modified succinimides (III) Disclosed herein are additives which are useful as dispersants and detergents in lubricating oils. In particular, this invention is directed toward polyamino alkenyl or alkyl succinimides which have been modified by treatment with a compound of the formul... | 12/10/1991 |
| 5071807 | Hydrocarbon processing composition A composition useful for processing hydrocarbonaceous feedstocks is disclosed comprising a mixture of a calcium/magnesium-containing material and a magnesium-containing material. The preferred calcium/magnesium-containing material is dolomite and the pref... | 12/10/1991 |
| 5059304 | Process for removing sulfur from a hydrocarbon feedstream using a sulfur sorbent with alkali metal components or alkaline earth metal components A process is disclosed for removing sulfur from a naphtha feedstream comprising contacting a naphtha feed with a platinum on alumina sulfur conversion catalyst under mild reforming conditions so that thiophenic and other organic sulfur compounds are conve... | 10/22/1991 |
| 5055607 | Long chain aliphatic hydrocarbyl amine additives having an oxy-carbonyl connecting group Long-chain aliphatic hydrocarbyl polyamino additives which comprise a long-chain aliphatic hydrocarbyl moiety, a polyamino moiety and an oxy-carbonyl connecting group which joins the aliphatic hydrocarbyl moiety and the polyamino moiety are useful as disp... | 10/08/1991 |
| 5052490 | Permeability of fines-containing earthen formations by removing liquid water A method is disclosed for improving the effectiveness of fluid transport in a petroleum reservoir. That method comprises increasing the permeability of a portion of the reservoir by removing liquid water from that portion by evaporating off the liquid wat... | 10/01/1991 |
| 5053373 | Zeolite SSZ-32 A crystalline zeolite SSZ-32 of novel composition is prepared using an N-lower alkyl-N'-isopropyl-imidazolium cation as a template. Also disclosed is a process for converting hydrocarbons with crystalline zeolite SSZ-32.... | 10/01/1991 |
| 5051163 | Nitrogen-tolerant cracking process A process is disclosed for reducing the impact of basic compounds, such as nitrogen, on hydrocarbonaceous feed intended for catalytic cracking. In a preferred embodiment, a portion of the regenerated catalyst of a catalytic cracking process is separated a... | 09/24/1991 |