| Patent Number |
Title Of Patent |
Date Issued |
| 6214303 |
Method and apparatus for treating the atmosphere |
April 10, 2001 |
| Method and apparatus for treating the atmosphere to lower the concentration of pollutants therein in which ambient air is passed into operative contact with a stationary substrate having at least one ambient air contacting surface having a pollutant treating material thereon. |
| 6200542 |
Method and apparatus for treating the atmosphere |
March 13, 2001 |
| Method and apparatus for treating the atmosphere to lower the concentration of pollutants therein in which ambient air is passed into operative contact with a stationary substrate such as an automobile at rest, a billboard, an air conditioning unit, a transportation tunnel and the like, |
| 6197092 |
Selective removal of nitrogen from natural gas by pressure swing adsorption |
March 6, 2001 |
| A pressure swing adsorption process for the separation of hydrogen from a mixture of the same with methane, utilizing two separate PSA stages, one containing a nitrogen selective crystalline zeolite, and the second containing a methane selective adsorbent. |
| 6194692 |
Electric heating sheet and method of making the same |
February 27, 2001 |
| An electric heating sheet (10) includes a heating element (16) formed of a first cured conductive coating disposed on a substrate (12). A pair of electrodes (18) may be disposed at opposite ends of the heating element (16) and in electrical contact therewith. The electrodes (18) may be |
| 6193504 |
Portable rotary catalytic oxidizer systems |
February 27, 2001 |
| A rotary regenerative catalytic oxidizer is disclosed which is a portable, compact system that catalytically destroys VOC and odorous compounds at elevated temperatures of 400 to 800.degree. F. Equipped with a very high thermally efficient rotor of 90+%, most heat for reaction is retaine |
| 6190627 |
Method and device for cleaning the atmosphere |
February 20, 2001 |
| Method for treating atmospheric pollutants by contacting the atmosphere with a catalyst composition or adsorptive material coated on the surface of a substrate in which the catalyst composition or adsorptive material is protected from degradation by harmful contaminants contained in the |
| 6176078 |
Plasma fuel processing for NOx control of lean burn engines |
January 23, 2001 |
| A highly reactive reducing gas mixture is produced from vehicle fuel and introduced into the exhaust gas of an internal combustion engine operated at lean burn conditions and passed over a reducing catalyst to convert NO.sub.X emissions to benign emissions. Preferably, fuel with oxygen |
| 6171556 |
Method and apparatus for treating an engine exhaust gas stream |
January 9, 2001 |
| A method and apparatus in accordance with the invention is described which comprises treating an engine exhaust gas stream containing hydrocarbons and other pollutants. The method of this invention comprises the steps of flowing the exhaust gas stream through a catalytic member comprisin |
| 6165260 |
Pearlescent pigments exhibiting color travel |
December 26, 2000 |
| A metal substrate having a pearlescent pigment coating thereon in which the pearlescent pigment is an iron oxide-coated interference thickness titanium dioxide platelet and in which the iron content of the combined oxide coatings is at least 1% exhibits color travel. |
| 6162524 |
Process for recovering catalyst |
December 19, 2000 |
| The present invention relates to a method of removing a coating, such as a spent catalyst coating, from a carrier such as a metal plate or a honeycomb carrier. The metal plates have a surface which has the catalyst coating. The honeycomb is of the type having a plurality of channels |
| 6156927 |
Suppression of aging for Pd-Au vinyl acetate monomer catalyst |
December 5, 2000 |
| One aspect of the present invention relates to a method of making vinyl acetate monomer, involving contacting reactant gases with a catalyst containing palladium, gold and a support in the presence of clean steam, the clean steam present from about 2 to about 10 psia, with the proviso |
| 6156327 |
Treated horticultural substrates |
December 5, 2000 |
| Disclosed are horticultural substrates coated with a particulate membrane and a method for controlling pests and providing enhanced horticultural effect by applying a particulate membrane to the surface of the horticultural substrate. |
| 6156283 |
Hydrophobic catalytic materials and method of forming the same |
December 5, 2000 |
| A catalytic composition and method of making the same in which a catalytic material has an average pore size distribution sufficiently large to substantially prevent capillary condensation. |
| 6153160 |
Catalytic oxidation method |
November 28, 2000 |
| Oxidation catalyst compositions include a catalytic material having a BET surface area of at least about 10 m.sup.2 /g and consists of a combination of bulk ceria and a bulk second metal oxide which may be one or more of titania, zirconia, ceria-zirconia, silica, alumina-silica and . |
| 6152990 |
Device for removing and retaining volatile compounds and method of employing the same |
November 28, 2000 |
| Device and method for removing volatile compounds from a gas stream, the device including a material which is capable of removing and retaining the volatile compounds while displaying a visible color change, wherein at least some moisture has been removed from the material and there is |
| 6151547 |
Air/fuel ratio manipulation code for optimizing dynamic emissions |
November 21, 2000 |
| A system for interfacing with the ECU of an automotive vehicle for optimizing engine control to meet emission requirements or engineering targets for catalytic converter systems includes a secondary controller and an emission analyzer. The secondary controller monitors sensor input t |
| 6150291 |
Method of abating NO.sub.x and preparation of catalytic material therefor |
November 21, 2000 |
| A method for reducing gaseous nitrogen oxides present in a gas stream by reaction with a reductant species is practiced by flowing the gas stream under lean NO.sub.X -reducing conditions in contact with a catalytic material containing a catalytically effective amount of a catalytic s |
| 6139615 |
Pearlescent pigments containing ferrites |
October 31, 2000 |
| A pearlescent pigment which is a ferrite-coated iron oxide-coated platy substrate in which the ferrite is substantially free of crystallites is obtained by adding metal ions to a slurry of hydrous iron compound and platy particles and then co-calcining in the metal and iron. |
| 6125629 |
Staged reductant injection for improved NO.sub.x reduction |
October 3, 2000 |
| An external reductant for an SCR vehicular NO.sub.x emission control system is selectively injected to SCR catalysts which are only at catalytically active temperatures thereby avoiding reductant absorption in catalytically unactive catalysts and improving conversion response time. |
| 6110867 |
Method for providing enhanced photosynthesis |
August 29, 2000 |
| Disclosed is a method for enhancing the photosynthesis of horticultural crops which involves treating the surface of said horticultural crop with an effective amount of one or more highly reflective particulate materials. |
| 6110862 |
Catalytic material having improved conversion performance |
August 29, 2000 |
| A novel catalytic material is prepared by dispersing a catalytically active species, e.g., one or more platinum group metals, on a support phase that contains a high porosity, meso-pores high surface area (HPMPHSA) material. The HPMPHSA material has a porosity, measured in milliliters pe |
| 6107354 |
Composite material, preparation and use thereof |
August 22, 2000 |
| Disclosed are formed composite material compositions suitable for use in the removal of heavy metals from aqueous systems, a process for preparing said composite materials and a process for the removal of heavy metals using said composite materials. Formed particulate composite material |
| 6107240 |
Catalyst composition containing an intimately mixed oxide of cerium and praseodymium |
August 22, 2000 |
| A catalyst suitable for the treatment of automotive engine exhaust exhibiting enhanced oxygen storage capacity. The catalyst composition contains, in addition to a catalytic material such as one or more of platinum, rhodium and palladium dispersed on an activated alumina support, an |
| 6105365 |
Apparatus, method, and system for concentrating adsorbable pollutants and abatement thereof |
August 22, 2000 |
| A new method, system, and apparatus are described for the adsorption and concentration of adsorbable pollutants. The invention allows for simultaneous pollutant adsorption and pollutant concentration. The invention is particularly useful in treating the exhaust of internal combustion |
| 6093378 |
Four-way diesel exhaust catalyst and method of use |
July 25, 2000 |
| A catalyst composition and structure containing the same and methods for treating diesel exhaust including a catalyst comprising a precious metal on a support, a first zeolite component in the presence of a precious metal and a second zeolite component comprising a zeolite and a precious |
| 6087514 |
Titanium silicate molecular sieve oxidation catalysts and the production thereof |
July 11, 2000 |
| Disclosed are novel crystalline molecular sieves having the framework of ETS-10 titanium silicate which contain both octahedral and tetrahedral titanium atoms and are in acid form. The sieves are prepared by adding a complexing agent such as hydrogen peroxide during synthesis or by treat |
| 6087298 |
Exhaust gas treatment system |
July 11, 2000 |
| The present invention relates to an exhaust gas treatment catalytic article having an upstream catalytic zone and at least one downstream catalytic zone. The upstream catalytic zone has an upstream composition which has a first upstream support, and at least one first upstream palladium |
| 6080377 |
Method of abating NO.sub.x and a catalytic material therefor |
June 27, 2000 |
| A method for reducing gaseous nitrogen oxides present in a gas stream by reaction with a reductant species is practiced by flowing the gas stream under lean NO.sub.X -reducing conditions in contact with a catalytic material containing a catalytically effective amount of a catalytic s |
| 6077495 |
Method, composition and system for the controlled release of chlorine dioxide gas |
June 20, 2000 |
| Method, composition and system for generating chlorine dioxide gas in a controlled release manner by combining at least one metal chlorite and a dry solid hydrophilic material that reacts with the metal chlorite in the presence of water vapor, but does not react with the metal chlorite i |
| 6074973 |
Catalyzed hydrocarbon trap material and method of making the same |
June 13, 2000 |
| A catalyzed hydrocarbon trap material washcoat (20) used in a trap (10), which may be placed downstream of a conventional catalyst member (28), is useful for treating internal combustion engine (22) exhaust. Trap (10) traps hydrocarbons during cold operation periods and releases them for |
| 6072064 |
Process for the interesterification of triglycerides |
June 6, 2000 |
| The invention relates to a process for the catalytic interesterification of triglycerides, which is characterized in that a heterogeneous catalyst is used, based on one or more oxides and/or oxysalts of metals of the groups IA and IIA of the Periodic System, at least one of the oxides an |
| 6071850 |
Multi-layer non-identical catalyst on metal substrate by electrophoretic deposition |
June 6, 2000 |
| A method for producing by electrophoretic deposition multi-layer, polyfunctional, catalyst members for use in catalytic converters having a plurality of suitably porous and adherent catalyst support coatings of substantially uniform thickness, a plurality of non-identical catalytic a |
| 6068682 |
Small-pored crystalline titanium molecular sieve zeolites and their use in gas separation proces |
May 30, 2000 |
| Novel gas separation agents with precisely and predictably controlled pore sizes within the range of 3-4 Angstrom units and their preparation from ETS-4 by exchange with cations, particularly multivalent cations such as strontium followed by drying and calcination to effect controlled po |
| 6066228 |
Method for making a metallic honeycomb carrier body |
May 23, 2000 |
| A method for making a honeycomb carrier body and product formed thereby in which a corrugated foil strip is provided having opposite side edges and corrugations oriented at an oblique angle to the side edges. The corrugated foil strip is folded on lines perpendicular to the side edges |
| 6054627 |
Hydrogenation catalyst, process for preparing and process of using said catalyst |
April 25, 2000 |
| Disclosed are catalysts in powdered form comprising a major amount of the oxides of a first metal selected from copper or zinc, a second metal selected from chromium, molybdenum, tungsten and vanadium, and optionally, a minor amount of the oxide of a promoter metal selected from the grou |
| 6049008 |
Shaped hydrogenation catalyst and processes for their preparation and use |
April 11, 2000 |
| Shaped catalyst compositions are disclosed comprising (i) at least one metal selected from the group consisting of copper, manganese, zinc, nickel, cobalt and iron, (ii) calcium silicate and (iii) at least one clay material. Also disclosed are a process for preparing the foregoing shaped |
| 6045914 |
Pearlescent glass pigment |
April 4, 2000 |
| A pearlescent pigment comprises C glass flakes having a first layer comprising rutile titanium dioxide or iron oxide thereon and a second layer comprising hydrous oxide or hydroxide of a polyvalent cation, precipitate of said polyvalent cation, and an anionic polymeric compound. A hy |
| 6044644 |
Close coupled catalyst |
April 4, 2000 |
| A stable, close-coupled catalyst, an article comprising the close-coupled catalyst and a related method of operation. The close-coupled catalyst comprises a catalyst support and a palladium catalytic component. Preferably and optionally, there are stabilizers including alkaline metal |
| 6042795 |
Methods and apparatus for treating waste gas streams from wood burning processes |
March 28, 2000 |
| Methods and apparatus for the catalytic oxidation treatment of waste gas streams that contain entrained solids and gaseous air pollutants such as volatile organic compounds and carbon monoxide, and particularly methods and apparatus suitable for treating waste gas streams from wood burni |
| 6036763 |
KOH neutralized metatitanic acid mixture and complex inorganic pigments containing the same |
March 14, 2000 |
| In one embodiment, the present invention relates to a KOH neutralized metatitanic acid mixture containing from about 30% to about 99% by weight metatitanic acid, from about 1% to about 20% by weight of a titanyl compound, and optionally from about 0% to about 55% by weight titanium d |
| 6030537 |
Method for removing arsenic from aqueous systems containing competing ions |
February 29, 2000 |
| Disclosed is a method for removing arsenic from aqueous systems containing arsenic which includes contacting said aqueous system with an adsorbent material comprising (i) activated bauxite and (ii) aluminum trihydrate, until the arsenic is substantially removed from said aqueous system. |
| 6027755 |
Bleaching earth product and method for producing and using the same |
February 22, 2000 |
| Disclosed are compositions, suitable for use in the purification of edible or inedible oils, of agglomerated particles of at least one minus ten micron bleaching clay, wherein said agglomerated particles are microspheres having an average diameter of at least about 10 microns as well |
| 6027740 |
Method for protecting surfaces from arthropod infestation |
February 22, 2000 |
| Disclosed is a method for protecting surfaces from arthropod infestation which involves treating the surface with an effective amount of finely divided calcined kaolins, hydrophobic calcined kaolins, hydrous kaolins, hydrophobic hydrous kaolins, hydrophobic calcium carbonates, calcium |
| 6027561 |
Cement-based compositions |
February 22, 2000 |
| In one embodiment, the present invention relates to a cement-based composition containing at least one cementitious material and at least one highly reactive pozzolan, wherein the highly reactive pozzolan comprises spray-dried metakaolin. In another embodiment, the present invention |
| 6026639 |
Apparatus and method for diagnosis of catalyst performance |
February 22, 2000 |
| A method and apparatus that converts time-resolved sensor signals into frequency domain signals using Fast Fourier Transforms and power spectral densities. A signal, as a means to assess catalyst performance such as a signal based on sensing oxygen concentration in motor vehicle exhaust |
| 6022826 |
Composition for oxidizing carbon monoxide in the presence of sulfur compounds with reduced forma |
February 8, 2000 |
| A catalyst for oxidizing carbon monoxide in a gas stream is provided. The catalyst contains a combination of a platinum component and one or more bismuth oxides in amounts sufficient to convert carbon monoxide to carbon dioxide in the presence of oxygen. The bismuth oxides inhibit the te |
| 6021638 |
Engine management strategy to improve the ability of a catalyst to withstand severe operating en |
February 8, 2000 |
| A method and engine control strategy is described that enables improved catalyst performance after having been exposed to severe operating environments. More specifically, rhodium-containing catalysts are reactivated by being subjected to fuel-rich spikes after being exposed to high |
| 6019946 |
Catalytic structure |
February 1, 2000 |
| A catalytic structure may be in the form of a ceramic support member having disposed on it a catalytic material which is a fired coating (124a-1, 124a-2) of a catalytic ink. The catalytic ink contains a liquid vehicle, at least one metal resinate compound and fine particles of a refracto |
| 6017629 |
Amorphous microporous oxidic solids, process for producing them and their use |
January 25, 2000 |
| This present invention relates to microporous oxidic solids based on organofunctional compounds of metals, transition metals and semiconductor elements, preferably elements of the third and fourth main group and/or the fourth sub-group of the periodic system of elements, which are pr |
| 6009742 |
Multi-channel pellistor type emission sensor |
January 4, 2000 |
| A calorimetric sensor for sensing hydrocarbon emissions in an exhaust gas emission monitoring system is provided with at least first and second areas coated with different first and second catalysts so that one catalyst coated area produces oxidation with HC, CO and H.sub.2 and the o |
