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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8070855 | Methods and apparatuses for reducing emissions of volatile organic compounds from pumps and storage tanks for VOC-containing fluids A method is provided for reducing emissions of a volatile organic compound (“VOC”) from a source of the VOC. The method includes the steps of: (A) operatively positioning a VOC-absorbing material between the source of the VOC and the atmosphere, wherein the VOC ... | 12/06/2011 |
| 8034165 | Single-crystalline organic carboxylic acid metal complex, process for producing the same, and use thereof A large single crystal of a complex such as an organic carboxylic acid metal complex, which crystal is useful as an adsorbent of various gases and vapors of organic solvents and as a hydrogen-absorbing material, as well as a process for producing the crystal, is dis... | 10/11/2011 |
| 8012242 | Adsorbent mediated reduction of organic chemicals from solid building materials A method of removing pollutants from building materials using an externally applied adsorbent. The adsorbent has a high affinity to common pollutant chemicals. The pollutants are transferred from the contaminated microporous building materials onto the adsorbent unt... | 09/06/2011 |
| 7951226 | Apparatuses and methods for reducing emissons of volatile organic compounds when pumping fluids containing volatile organic compounds with a positive displacement pump An apparatus is provided for pumping a fluid, wherein the fluid comprises a volatile organic compound (“VOC”), the apparatus including: an enclosure for the exposed portion of the reciprocating piston or plunger; and a VOC-absorbing material operatively position... | 05/31/2011 |
| 7922791 | Filtering system for a semiconductor processing tool The present invention provides a filtering system for a semiconductor processing tool. In one embodiment, the filtering system is associated with the semiconductor processing tool. A system of the invention comprises a first and second filter layer in fluid communic... | 04/12/2011 |
| 7914608 | Method of processing volatile organic compound and system for processing volatile organic compound Discharge gas containing a volatile organic compound is supplied to an adsorption apparatus, and the volatile organic compound adsorbed in the adsorbent is then desorbed from the adsorbent by the use of steam and mixed it with the steam, and finally, the steam mixed... | 03/29/2011 |
| 7713334 | Process for removing epoxides A process for removing epoxides from a process stream over a wide range of temperature and relative humidity, comprising the step of contacting the process stream with a filtration media comprising an acid form of a mesoporous zeolite produced from pentasil zeolite ... | 05/11/2010 |
| 7625430 | Use of aluminas as capture mass for organometallic silicon complexes The present invention concerns a process for capturing organosiliceous complexes in the gaseous or liquid phase on a solid containing at least 80% by weight of alumina after calcining at 1000° C. The alumina has a total pore volume of more than 30 ml/100 g, a fract... | 12/01/2009 |
| 7550032 | Method for removing contaminating gaseous components from a natural gas stream A method for removing contaminating gaseous components, such as CO2 and/or H2S, from a contaminated natural gas stream. The method includes the steps of expanding the contaminated gas stream in an expander to form an expanded gas stream; allowi... | 06/23/2009 |
| 7540901 | Filters employing both acidic polymers and physical-adsorption media A filter includes at least two different adsorptive media. First, chemisorptive media, which is porous and includes an acidic functional group, is used to remove molecular bases, including ammonia, organic amines, imides and aminoalchols, from the atmosphere used in... | 06/02/2009 |
| 7503960 | Smoking articles and filters with carbon fiber composite molecular sieve sorbent Filters and smoking articles include at least one carbon fiber composite molecular sieve sorbent capable of selectively removing one or more selected constituents from mainstream smoke. Methods for making cigarette filters and smoking articles using the carbon fiber... | 03/17/2009 |
| 7431900 | Hydrogen peroxide vapor system with replaceable desiccant cartridge A hydrogen peroxide vapor generation unit (10) receives hydrogen peroxide and water solution at an interface (20) and interconnects with an air dryer (14) by way of nipples (72, 92). In one embodiment, the dryer includes a clamping assemb... | 10/07/2008 |
| 7393381 | Removing siloxanes from a gas stream using a mineral based adsorption media A plurality of different layers of filter media are used to remove siloxanes from a gas stream. Based on an analysis of the specific gas stream to be filtered, a filter media having an average pore size enabling the preferential removal of a specific class of contam... | 07/01/2008 |
| 7371270 | Odour absorbing filters An odor adsorbing or deodorizing filter which comprises a matrix or substrate impregnated with a mixture of particulate chemically modified activated carbon and particulate activated carbon, together with a binder. The filter may be incorporated into an ostomy colle... | 05/13/2008 |
| 7335246 | Contaminant adsorption and oxidation via the fenton reaction Contaminated fluids are treated by adsorbing contaminant onto a sorbent to concentrate the contaminant and then oxidizing the contaminant via the Fenton and related reactions. Iron is attached to the sorbent or can be added in solution with an oxidant. Both systems,... | 02/26/2008 |
| 7326276 | Method of shutting off fuel gas manufacturing apparatus When a shutoff signal is entered to shut off a fuel gas manufacturing apparatus, it is determined whether a PSA mechanism is in a prescribed shutoff state or not. If the PSA mechanism is judged as not being in the prescribed shutoff state, the fuel gas manufacturing... | 02/05/2008 |
| 7316732 | Air treatment filter and related method An activated carbon filter that treats a gas stream having a varying relative humidity, the gas stream contaminated with at least one of formaldehyde, an acid gas and an alkaline gas. The filter includes a plurality of activated carbon granules mixed together in a c... | 01/08/2008 |
| 7316734 | Volatile organic compound treatment apparatus A volatile organic compound treatment apparatus including an adsorber coming into contact with a gas to be treated and adsorbing volatile organic compounds; a plurality of pairs of electrodes, divided into a plurality of groups, which generate electric discharge so ... | 01/08/2008 |
| 7309379 | Moving bed adsorber/desorber and low flow (high yield) desorber devices and their methods of use Moving bed adsorber and desorber apparatus and methods, wherein adsorbent material (e.g., beads of resin) moves over a series of vane members and a fluid flow passes between the vane members and through the flowing bed of adsorbent. An adsorbent depth regulator is p... | 12/18/2007 |
| 7309380 | Gas storage system A container for uptaking, or storing, or releasing, or uptaking and storing, or uptaking and releasing, or storing and releasing, or uptaking, storing and releasing at least one gas, comprising a metal-organic framework material comprising pores and at least one met... | 12/18/2007 |
| 7271123 | Molecular sieve catalyst composition, its making and use in conversion process The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a molecular sieve cata... | 09/18/2007 |
| 7264648 | Removing siloxanes from a gas using a segmented filtration system customized to the gas composition A plurality of different layers of filter media are used to remove siloxanes from a gas stream. Based on an analysis of the specific gas stream to be filtered, a filter media having an average pore size enabling the preferential removal of a specific class of contam... | 09/04/2007 |
| 7252700 | Mobile gas separator system and method for treating dirty gas at the well site of a stimulated gas well A method and mobile system for cleaning dirty gas from a newly stimulated gas well. The entire system is supported on a trailer or other mobile support so that it can be driven from well site to well site for short-term, post-stimulation use only. The system compris... | 08/07/2007 |
| 7252702 | Hydrogen purification optimization system A method of hydrogen recovery in refineries and petrochemical operations in which some or all of the feed streams for separate PSA units are combined and utilized as feed for a single PSA unit, and in which some or all of steam reformer product and refinery offgas s... | 08/07/2007 |
| 7250150 | Chemical reactor with pressure swing adsorption A chemical reaction is performed with separation of the product(s) and reactant(s) by pressure swing adsorption (PSA), using an apparatus having a plurality of adsorbers cooperating with first and second valve assemblies in a PSA module. The PSA cycle is characteriz... | 07/31/2007 |
| 7241430 | Activated carbon for odor control and method for making same An activated carbon-metal oxide matrix is disclosed. The activated carbon-metal oxide matrix may be obtained by a method including the steps of: preoxidizing a carbon material, grinding the preoxidized carbon material; mixing the ground preoxidized material with a m... | 07/10/2007 |
| 7217313 | Dehumidification system and dehumidification method A dehumidifying system supplies a gas free of organic substances. The dehumidifying system includes a holding case, and a rotor rotatably held in the holding case and bearing an adsorbent. The interior of the holding case is divided into an adsorbing zone and a rege... | 05/15/2007 |
| 7172645 | Gas filtration and storage using activated carbon/graphite foam monoliths An apparatus for separating a first gas from a mixture of the first gas and at least one second gas comprises a housing having an inlet port and an outlet port and an adsorbent which is positioned in the housing. The adsorbent comprising a carbon based foam monolith... | 02/06/2007 |
| 7163636 | Multi-phase separation system A multi-phase separation system utilized to remove contaminants from fluids includes a pre-filtering module for filtering a contaminated fluid to provide a filtered contaminated fluid. A condenser module receives the filtered contaminated fluid and a contaminated ga... | 01/16/2007 |
| 7160831 | Molecular sieve catalyst composition, its making and use in conversion processes The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated mo... | 01/09/2007 |
| 7125438 | Method and an apparatus for continuously deaerating a liquid The invention relates to a method for continuously deaerating a liquid. The method comprises the step that the liquid is led into a closed container (1) so that a liquid surface (7) is formed within the container (1). The space above the liquid ... | 10/24/2006 |
| 7115160 | Filtration media Particles may be used to filter harmful biological material from an fluid stream such as air. The particles can be arranged into a bed to filter the harmful biological material from the fluid. The particles include a biocidal agent which is used to destroy the harmf... | 10/03/2006 |
| 7101414 | Rotary bed sorption system including at least one recycled isolation loop, and methods of designing and operating such a system A method of reducing the sorbate concentration of a process fluid stream using a sorption bed system includes the following steps. A mass of a sorbent material is rotated so that, in a cycle of operation, a given volume of the sorbent mass sequentially passes throug... | 09/05/2006 |
| 7080505 | Vehicular atmosphere cleansing method A vehicular atmosphere cleansing system utilizes a regenerative wheel having flow channels extending through the wheel coated with an adsorbant. An atmosphere stream passes through a first position dependent portion of the wheel where VOC's including HC's are adsorb... | 07/25/2006 |
| 7048781 | Chemically-impregnated silicate agents for mercury control The present invention is directed to a contaminant removal agent comprising a polyvalent metal sulfide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered sil... | 05/23/2006 |
| 7037359 | Grease containment system A device, system, and method for collecting grease on rooftop exhaust fans, comprising a gasket formed of sorbent material. The gasket is dimensioned for placement between an exhaust fan and a base for the exhaust fan. When placed between the exhaust fan and the bas... | 05/02/2006 |
| 7029516 | Filters and methods of making and using the same Filters for removing particulate and gaseous organic and inorganic materials from a fluid stream are disclosed. The filters may contain a polymer matrix and optional sequestering agents. Methods of making filters are also disclosed. Methods of using filters to remov... | 04/18/2006 |
| 7022161 | Process using alumina agglomerates to eliminate organic oxygen-containing molecules present in an organic effluent A process for eliminating organic oxygen-containing molecules such as alcohols and organic present in an organic or gaseous effluent is characterized in that the elimination is carried out by adsorbing said organic oxygen-containing molecules onto alumina agglomerat... | 04/04/2006 |
| 7018449 | Filtration media Particles may be used to filter oleo material such as grease from a flow of fluid such as a gas. The particles can be arranged into a bed to filter the oleo material from the fluid. The filtrate substance collect on the inorganic particles. The particles are re-usab... | 03/28/2006 |
| 7014690 | Expandable desiccant element An expandable desiccant element for removal of moisture from an air stream. Such expandable desiccant element includes at least one first expandable containment section capable of expanding a first predetermined amount, at least one second expandable containment sec... | 03/21/2006 |
