Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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 |
| 7255793 | Methods for removing heavy metals from water using chemical precipitation and field separation methods A two-step chemical precipitation process involving hydroxide precipitation and sulfide precipitation combined with “field separation ” technology such as magnetic separation, dissolved air flotation, vortex separation, or expanded plastics flotation, effectivel... | 08/14/2007 |
| 7157062 | Inhibition of the depletion of metal values from pregnant lixiviant solutions Methods for inhibiting depletion of mineral values from pregnant lixiviant solutions comprise contacting the requisite metal ore with a preg-robbing inhibition agent (PRIA) comprising (I) alkyl polyglucoside surfactants; (II) imidazoline based amphoteric surfactants... | 01/02/2007 |
| 7122167 | Precious metal recovery from organics-precious metal compositions with supercritical water reactant A supercritical oxidation process carried out in water is capable of oxidizing “organics” in precious metal organic compositions such as heterogeneous (Pt/C) or homogeneous precious metal catalysts and producing a precious metal oxide with few by-products and lo... | 10/17/2006 |
| 7091525 | Apparatus for producing a display unit A display device is formed by burying at least part of a light emitting device in an insulating material, wherein a drive electrode for the light emitting device is formed so as to be extracted on a surface of the insulating material. A display unit is produced by t... | 08/15/2006 |
| 7060121 | Method of producing gold nanoparticle A method for producing gold nanoparticles is disclosed. When gold salt solution is mixed with an adsorbent, gold in the form of complexes is adsorbed onto the surface of the adsorbent. The gold-loaded adsorbent, after being separated from the solution by screening, ... | 06/13/2006 |
| 6953120 | Method of recovering metal and/or oxide thereof in a slurry and tailings obtained from said method A method of recovering metal and/or oxide thereof from a slurry is described. The method involves magnetically separating at least a portion of any magnetic impurities from the slurry and then leaching or dissolving at least a portion of any remaining magnetic impur... | 10/11/2005 |
| 6953494 | Sorbents and methods for the removal of mercury from combustion gases A method for removing mercury and mercury-containing compounds from a combustion gas in an exhaust gas system has the steps of providing a mercury sorbent; injecting the mercury sorbent into a stream of the mercury-containing combustion gas for a sufficient time to ... | 10/11/2005 |
| 6923328 | Method and apparatus for separating metal values Methods and apparatuses for separating metal values, such as nickel and nickel compounds, from mineral ores, including lateritic ores are disclosed. The method includes providing a mixture of particles (e.g., crushed and sized ore) that is composed of at least a fir... | 08/02/2005 |
| 6569358 | Method for incorporating metal nanoparticles in porous materials The method of preparing the porous material incorporating ultrafine metal particles comprises the following steps: (1) preparing surface-protected ultrafine metal particles by reducing metal ions in the presence of molecules such as dodecanethiol molecule... | 05/27/2003 |
| 6238632 | Process and composition for removing precious metals from activated carbon A process for removing precious metals from activated carbon. The activated carbon is contacted with an aqueous solution of methyl ethyl ketoxime and sodium hydroxide.... | 05/29/2001 |
| 6228334 | Method of recovering gold from the fine carbon residue from a coarse carbon gold recovery process A method for recovering gold from gold-loaded fine carbon residue from a coarse carbon gold recovery process is disclosed. The gold-loaded fine carbon residue is mixed with activated coarse carbon and an aqueous solution of a transfer reagent to form a sl... | 05/08/2001 |
| 5769925 | Process for the elution of precious metals absorbed on active carbon A powerful reducing agent such as hydrazine monohydrate is added to the standard eluent solutions such as NsOH-NaCN with or without alcohol. The kinetics of elution of gold or of silver are thus markedly enhanced.... | 06/23/1998 |
| 5734020 | Production and use of magnetic porous inorganic materials Magnetic porous inorganic siliceous materials having a particle size of about 1 to about 200 microns useful as solid supports in various chromatography, immunoassays, synthesis and other separation and purification procedures is disclosed.... | 03/31/1998 |
| 5531903 | Fluoride removal from metal sulphate solution and a method of waste utilization A process is provided for the removal of fluoride from a metal sulphate solution, such as a zinc sulphate solution, which presents an option for the disposal of waste treatment sludge from the aluminum anodizing industry. The fluoride is removed from meta... | 07/02/1996 |
| 5468456 | Batch extracting process using magneticparticle held solvents A process for selectively removing metal values which may include catalytic values from a mixture containing same, wherein a magnetic particle is contacted with a liquid solvent which selectively dissolves the metal values to absorb the liquid solvent ont... | 11/21/1995 |
| 5449396 | Method for recovering gold and silver from ore starting materials A pulp with ph=9.5 to 11.5, resin, and cyanide KCN is fed to a reaction zone. KCN is in a concentration of CN- ions in the liquid phase of the pulp from about 0.1 to about 10 g/l, which is maintained constant. The sorbent is in an amount provi... | 09/12/1995 |
| 5320720 | Extraction of precious metals from ores thereof Increased efficiency of extraction of silver and gold from ore materials thereof containing active carbonaceous material is obtained by conducting the extraction in two stages. In a first stage a portion of the silver and of the gold when present is extra... | 06/14/1994 |
| 5171559 | Process for purifying silver nitrate solution using activated alumina A process for removing heavy metals from a silver nitrate solution is disclosed. The process comprises the step of bringing said silver nitrate solution into contact with activated alumina having a surface acidity of at least 8 and an average pore diamete... | 12/15/1992 |
| 5116415 | Metal value recovery or removal from aqueous media Hydrophilic hydrogels capable of a high degree of water imbibition are contacted with aqueous feedstocks containing metal and metal anion values to collect the water and dissolved or suspended values or materials. The term metals includes the free base an... | 05/26/1992 |
| 5084430 | Sulfur and nitrogen containing hydrocarbons and process of using same in separating desired ions from solutions thereof Compositions of matter are disclosed comprising nitrogen containing hydrocarbons which are modified with at least one of the elements selected from the group consisting of sulfur, phosphorus an arsenic, with the modified hydrocarbons being covalently bond... | 01/28/1992 |
| 5071819 | Sulfur and nitrogen-containing hydrocarbons and process of using same in recovering and concentrating desired ions from solutions thereof The invention has compositions of matter and process aspects. The compositions of matter aspects relate to a class of new organic compounds, viz., intermediates which are sulfur and nitrogen containing hydrocarbons covalently bonded to trialkoxysilane and thos... | 12/10/1991 |
| 5055199 | Method for reducing the amount of anionic metal-ligand complex in a solution A method for reducing the amount of anionic metal-ligand complex in a solution comprises: (a) contacting the solution with a substance selected from: a compound having the formula: Aw Bx (OH)y Cz.nH.sub.2 O, whe... | 10/08/1991 |
| 5055402 | Removal of metal ions with immobilized metal ion-binding microorganisms A composition for removing metal ions from aqueous solution is prepared by immobilizing metal ion-binding microorganisms such as algae, washing the immobilized microorganisms, drying the washed immobilized microorganisms and heating the dried immobilized ... | 10/08/1991 |
| 5019162 | Activated carbon for recovery of gold There is disclosed an activated carbon for use in the process of recovery of gold which comprises adsorbing aurocyanide complexes thereon, desorbing the complexews therefrom and separating the activated carbon with a screen, the activated carbon being sph... | 05/28/1991 |
| 5015560 | Method of treating photographic waste A method of treating a waste solution resulting from the processing of a photographic material with a working solution is disclosed, wherein at least part of said waste solution is absorbed by a resin capable of absorbing at least 50 times its own weight ... | 05/14/1991 |
| 4981598 | Metal sorption method using interstage screening A method for sorbing metal values from a slurry containing the same is disclosed. The slurry is advanced through a plurality of vessels arranged in series while countercurrently directing a sorbent through the vessels. Metal values are sorbed from the slu... | 01/01/1991 |
| 4968346 | Method for eluting adsorbed gold from carbon Gold in a very dilute water solution is carbon filtered to capture the gold by adsorption; the gold in the filter is then recovered from the carbon by means of a highly-efficient non-explosive low-alcohol water-based eluant including a strong base and an ... | 11/06/1990 |
| 4929274 | Recovery of metal values from ores Heap leaching of gold/silver ores with an aqueous alkali cyanide solution containing a surfactant hydrolyzable at the pH of the solution, the surfactant being present in an amount sufficient to increase the rate of metal value recovery without adversely a... | 05/29/1990 |
| 4925485 | Process for the isolation of noble metals The present invention involves the isolation or leaching of noble metals from materials containing noble metals, e.g. ores, by treating the noble metal- containing materials with a cyclic thiourea derivative under acid pH conditions. Removal is effected b... | 05/15/1990 |
| 4923510 | Treatment of refractory carbonaceous sulfide ores for gold recovery Refractory carbonaceous sulfide ores are treated in a manner so as to improve gold recovery by a treatment in specific combination of steps whereby the ore is treated with chlorine after pretreatment and before cyanidation; the particular steps in the tre... | 05/08/1990 |
| 4878945 | Hydrometallurgical process for treating refractory ores containing precious metals This invention is directed to an improved process for leach treating gold and silver bearing pyritic and arsenopyritic concentrates and ores. More particularly, the improved process avoids the necessity of adding recycled neutralized solution to the leach... | 11/07/1989 |
| 4876232 | Supported heteropolycyclic compounds in the separation and removal of late transition metals Compositions comprising carbon-based supports and containing heteropolycyclic compounds such as bipyridyl, phenanthroline or derivatives thereof are used in separation of dissolved late transition metals such as Fe, Co, Ni and Cu from solutions, in partic... | 10/24/1989 |
| 4867882 | Method for reducing the amount of anionic metal ligand complex in a solution A method for reducing the amount of anionic metal-ligand complex in a solution comprises: (a) contacting the solution with a substance selected from: a compound having the formula: Aw Bx (OH)y Cz .multidot.nH | 09/19/1989 |
| 4842644 | Silver recovery method Methods of and apparatus for recovering silver and other metals from solutions containing compounds of those metals. The solution being treated is pumped upwardly under pressure and at a constant rate through a reaction mass or medium to promote ion excha... | 06/27/1989 |
| 4802920 | Extraction of metals from aqueous solutions with asphaltenes A process for extracting metals from aqueous solutions containing such metals comprising contacting such an aqueous solution with an asphaltene to extract at least one metal from the aqueous solution to the asphaltene, and recovering the thus extracted at... | 02/07/1989 |
| 4759934 | Process for preparing high protein bread with ascorbic acid and product A technique for producing baked products, such as bread with very high protein levels, up to about 45% on a dry basis (18 to 25% on a wet basis), by incorporating in the unrisen dough the desired high protein levels, large amounts of ascorbic acid, e.g. 4... | 07/26/1988 |
| 4726895 | Process for concentration of gold and uranium magnetically A process for concentrating gold and/or uranium minerals by rendering the nonmagnetic minerals magnetic or weakly magnetic by causing a coating to form on the surfaces of the minerals. The gold and/or uranium are concentrated by use of a gravity-magnetic ... | 02/23/1988 |
| 4720422 | Material for collecting radionuclides and heavy metals A material is, herein disclosed for collecting radionuclides and heavy metals that comprises an acrylic fiber element having MnO2 and/or ferrocyanide compound of the formula K2 MII [Fe(CN)6 ] (wherein MII | 01/19/1988 |
| 4676909 | Process for recovering noble metals from their cyanide complexes Noble metals are recovered from their cyanide complexes in aqueous solution by reaction with red phosphorus. To this end, red phosphorus is used in quantities of 1 to 5 weight %, based on the aqueous solution of the noble metal cyanide complex, in combina... | 06/30/1987 |
| 4666212 | Metal value recovery Metal values, particularly precious metal values, are recovered from fines on a footwall and in the fissures and cracks therein by passing a solution capable of solubilizing the metal values across the footwall. The metal values are preferably adsorbed on... | 05/19/1987 |
