Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
PatentStorm News
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 |
| 7947240 | System and method of carbon capture and sequestration Systems and methods of capturing and sequestering carbon dioxide, comprising mixing a substantially non-aqueous solvent and an alkali such that the solvent and alkali form a solvent suspension, mixing water and a flue gas containing carbon dioxide with the solvent s... | 05/24/2011 |
| 7628966 | Method for scrubbing natural gas The present invention is a process for removing hydrogen sulfide gas from natural gas by contacting a flow of sour natural gas containing hydrogen sulfide gas with a scavenging agent including a group IIA metal hydroxide such as calcium hydroxide for a sufficient am... | 12/08/2009 |
| 7427383 | Hydrogen sulfide removal method and system for treating gaseous process streams A method and system for removing hydrogen sulfide from gaseous process streams, such as sour gas streams are disclosed and described. A gaseous stream containing hydrogen sulfide can be contacted with an aqueous silicon-containing composition under high shear condit... | 09/23/2008 |
| 7378068 | Electrochemical process for decomposition of hydrogen sulfide and production of sulfur The present invention includes a process for the removal of hydrogen sulfide from hydrogen sulfide gas containing gaseous streams. In one embodiment, the process comprises feeding a sulfide ion containing solution to an oxidation unit. The method further comprises f... | 05/27/2008 |
| 7323151 | Process for the selective removal of sulphur compounds from synthesis gas A process for the selective removal of sulphur compounds from synthesis gas being rich in carbon monoxide and containing hydrogen, carbon monoxide and containing hydrogen, carbon dioxide and steam comprising contacting the synthesis gas at a maximum contact temperat... | 01/29/2008 |
| 7309416 | Methods and compositions for desulfurization of hydrocarbon fuels Sulfur is removed from a hydrocarbon fuel via contact with a desulfurization agent; the desulfurization agent is then regenerated (wherein sulfur is released) by exposing it to oxygen. The sulfur removal and regeneration processes each can be carried out at relative... | 12/18/2007 |
| 7282189 | Production of hydrogen and removal and sequestration of carbon dioxide from coal-fired furnaces and boilers Methods for reducing and eliminating carbon dioxide from the emissions of solid fuel fired power plants, particularly coal fired power plants, and to sequester the carbon dioxide, typically by using existing equipment. In some embodiments, the methods involve pyroly... | 10/16/2007 |
| 7244405 | Method for cleaning coke oven gas A method for cleaning coke oven gas by washing the gas, whereby a washing liquid is guided into a washing liquid circuit and impurities in the washing liquid are expelled in a desorber. According to the invention, the coke oven gas is washed with caustic soda in a c... | 07/17/2007 |
| 7205258 | Catalysts for the production of methylchlorosilanes using zinc oxide promoters The present invention provides a catalyst that may be used to facilitate the formation of dimethylchlorosilanes. A catalyst in which copper oxide and zinc oxide are in intimate contact and form agglomerated particles allows for the increased selectively of the produ... | 04/17/2007 |
| 7141093 | Hydrated lime kiln dust recirculation method for gas scrubbing A method of scrubbing a gas stream with re-circulated kiln dust when the kiln dust is hydrated to form a sorbent. The sorbent is re-circulated with un-reacted flue gas stream for scrubbing. ... | 11/28/2006 |
| 7005115 | Gas combustion treatment method and apparatus therefor A gas combustion treatment method for the combustion treatment of an ammonia-containing gas and a hydrogen sulfide-containing gas, the method comprising a first combustion treatment step in which the ammonia-containing gas, together with a fuel, is introduced and bu... | 02/28/2006 |
| 6800259 | Methods to control H2S and arsine emissions Methods to control hydrogen sulfide and/or arsine emissions are described. The method involves adding at least one copper compound (such as a copper(II) compound) to the material, such as material containing sulfur in a sufficient amount to control said emissions. T... | 10/05/2004 |
| 6030591 | Process for removing and recovering halocarbons from effluent process streams A process for recovery of fluorocompound gas from an effluent gas stream containing the fluorocompound gas and other gas components, in which at least one of the other gas components is removed, e.g., by oxidation or contacting of the effluent stream with... | 02/29/2000 |
| 5993760 | Bulk nitrogen purification process that requires no hydrogen in the regeneration A process for removing parts-per-million quantities of unwanted species such as oxygen, carbon monoxide, hydrogen, carbon dioxide and water from a cryogenically produced nitrogen gas stream using an oxygen removal step prior to a nickel-based catalytic ad... | 11/30/1999 |
| 5853681 | Absorbents Absorbents, suitable for absorbing sulphur compounds such as hydrogen sulphide from gases and liquids, in the form of shaped units having an average size within the range 1-10 mm and containing at least 75% by weight of an absorbent material comprising co... | 12/29/1998 |
| 5700438 | Process for removal of H2S from gas processing streams A process for removing H2S and mercaptans from gas streams. The process comprises contacting such gas streams with an aqueous solution of copper complex of a water soluble amine to form water insoluble copper sulfide and regenerate free water soluble amin... | 12/23/1997 |
| 5508012 | Methods for recovering sodium sulfides from a sulfur scavenging reaction A method is provided for the regeneration of a scavenging compound that has been reacted with hydrogen sulfide. Regeneration is accomplished through the use of calcium oxides and sodium hydroxide. Sodium sulfide is recovered from the regeneration process ... | 04/16/1996 |
| 5417946 | Process for removing total reduced sulfur compounds from gaseous stream A process for removing Total Reduced Sulfur compounds from a gaseous stream such as those containing natural gas, industrial gas, and digester gas by oxidation with a fine flocculent acidic catalyst slurry which is regenerable during the process by pH adj... | 05/23/1995 |
| 5205908 | Purification of process gas from a partial combustion of black liquor The present invention relates to a process for the separation of sulphur and sodium compounds from a hot process gas generated during gasification of spent liquor from the kraft pulping industry, through contact with hydrogen sulphide ion and hydroxide io... | 04/27/1993 |
| 5147620 | Process for the purification of gaseous streams A process for removing hydrogen sulfide from natural gas and other gas streams. By passing a natural gas or other gas stream having a hydrogen sulfide (H2 S) component through an aqueous solution of copper (II) ions (Cu++), the hydro... | 09/15/1992 |
| 5100633 | Method for scrubbing pollutants from an exhaust gas stream Method of treatment of a hot exhaust gas stream containing acid forming pollutants to produce a scrubbed exhaust and useful or benign by-products. The gas stream is first passed through a heat exchanger and then reacted with an aqueous, alkaline scrubbing... | 03/31/1992 |
| 5096690 | Method and apparatus for manufacturing silver halide grains A method and apparatus for manufacturing silver halide grains wherein a water-soluble silver salt solution and a water-soluble halide solution are separately introduced within a hollow cylindrical structure open at each end which is rotatable mounted abou... | 03/17/1992 |
| 4968488 | Integrated system for pollution abatement and energy derivation from steam An integrated system for the derivation of useful energy from impure steam and/or use in connection therewith, said steam containing both hydrogen sulfide and an alkaline acting component, such as ammonia, while producing liquid-phase and gaseous-phase ef... | 11/06/1990 |
| 4968502 | Removal of sulfides from gas streams with low-cost catalyst The invention described herein discloses the use of silica gel as a catalyst for the efficient oxidation of hydrogen sulfide to elemental sulfur by nitric oxide. Concomitantly, this catalyst also promotes the hydrolysis of carbonyl sulfide to carbon dioxi... | 11/06/1990 |
| 4961805 | A method for severing and sealing sections of material A preheater assembly for softening a selected portion of plastic stock material prior to severing and edge sealing is disclosed. The preheater assembly includes a pair of opposed preheaters, each having a heater tip connected to a source of heated air. Th... | 10/09/1990 |
| 4923688 | Wet scrubber process for removing total reduced sulfur compounds from industrial gases A wet scrubber process for removing Total Reduced Sulfur compounds and non-magnetic entrained particulates from an industrial gas is described which employs an aqueous absorbent slurry containing manganese dioxide absorbent particles. Scrubbing of the ind... | 05/08/1990 |
| 4921682 | Process for removing hydrogen sulphide from gas streams Processes for the removal of hydrogen sulphide from gas streams and for the regeneration of spent scrubbing liquor used in an absorber to remove hydrogen sulphide from a gas stream, are disclosed. In the former process, hydrogen sulphide is removed by fiv... | 05/01/1990 |
| 4919904 | Primary hindered aminoacids for promoted acid gas scrubbing process Disclosed are primary sterically hindered aminoacids for use as promoters for alkali metal salts in acid gas scrubbing. The primary sterically hindered aminoacid is selected from 1-amino-cyclopentane carboxylic acid and those represented by the formula: ... | 04/24/1990 |
| 4919914 | Removal of hydrogen sulphide from gaseous streams Hydrogen sulphide is removed from gas streams in rapid and efficient manner by oxidation to sulphur. The process is effected by intimately contacting the hydrogen sulphide in the gas stream with oxygen in an aqueous medium containing a hydrogen sulphide-o... | 04/24/1990 |
| 4835043 | Sulfite-oxide process for scavenging hydrogen sulfide Adding sodium sulfite in the slurry of the iron oxide slurry process for scavenging hydrogen sulfide described in U.S. Pat. No. 4,246,244, eliminates excessive foaming on start-up, stabilizes the suspension of the oxide particles in the slurry, lessens cl... | 05/30/1989 |
| 4729835 | Process for waste treatment Organic sulphides are extremely malodorous compounds that are found in gaseous or aqueous effluents from many industries such as paper and pulp manufacture, hydrocarbon refinering, tanneries, and in the synthesis of organic sulphur compounds. Their remova... | 03/08/1988 |
| 4722799 | Natural gas desulphurizing apparatus and method A desulphurization apparatus and method for natural gas in which red iron oxide is reacted with the sulphur compounds found in natural gas to remove these compounds from the gas. The treating solution is then recycled to regenerate the red iron oxide solu... | 02/02/1988 |
| 4722766 | Extinguishing of fires and explosions Materials are described which not only extinguish fires or suppress explosions but also remove at least part of any carbon monoxide which may remain after such prior extinguishing or explosion suppressing. Examples of suitable fire extinguishants and expl... | 02/02/1988 |
| 4716027 | Method for simultaneously scrubbing cement kiln exhaust gas and producing useful by-products therefrom This invention relates to an apparatus and method for simultaneously scrubbing acidic exhaust gases and removing metal salts from alkaline waste dust from a cement plant or the like thereby producing useful products from what would otherwise be wasted. In... | 12/29/1987 |
| 4696802 | Drilling geothermal wells with removal of H2 S Geothermal wells are drilled and the raw steam containing H2 S gas and debris that is released is treated with an aqueous solution containing ferric chelate and one or more water soluble cationic polymeric catalysts to remove substantially all ... | 09/29/1987 |
| 4596698 | Apparatus for utilizing impure steam with extraction of one or more substances therefrom Certain impure steams, especially those from geothermal sources, are contaminated with gaseous substances such as hydrogen sulfide, ammomia, carbon dioxide, substances comprising boron, arsenic and mercury, other gases, as well as finely divided particula... | 06/24/1986 |
| 4505776 | Composition and method for treating flue gas and methanol containing effluents A composition is provided which comprises an aqueous alkaline solution of a metal salt and black liquor, the metal salt being selected from the group consisting of iron, chromium, cobalt and nickel salts. This composition is useful in a process described ... | 03/19/1985 |
| 4470961 | Utilization of impure steam and recovery of deuterium therefrom Certain impure steams, especially those from geothermal sources, are polluted with hydrogen sulfide, ammonia, carbon dioxide, other gases, and finely divided particulate solid matter in a form resembling dust or smoke. These contaminants reduce the effici... | 09/11/1984 |
| 4469668 | Integrated system for pollution abatement and energy derivation from geothermal steam An integrated system for the derivation of useful energy from impure steam and/or for use in connection therewith, said steam containing both hydrogen sulfide and an alkaline acting component, such as ammonia, while producing liquid-phase and gaseous-phas... | 09/04/1984 |
| 4400361 | Method of removing H2 S from a gas stream utilizing boron-vanadium and iron complexes A process for removing hydrogen sulfide from sour gas streams is provided wherein the sour gas is passed in cocurrent flow relationship with a liquid alkaline absorption solution containing a vanadium-boron complex characterized by the properties of react... | 08/23/1983 |
