U.S. patents available from 1976 to present.
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Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.

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Class 516/136 - Breaking (resolving) or inhibiting occurs on the surface of a solid agent (e.g., adsorbent, absorbent, differential adherence surface, filter, sharp edged particles)


Subclass of Class 516 - Colloid systems and wetting agents; subcombinations thereof; processes of
Definition: Subject matter in which the breaking (resolving) or inhibiting
No. of patents: 19
Last issue date: 03/11/2008


NumberTitleIssue Date
7341668Filter aid and method of using same for reclaiming water-based fluids used in metal working processes
A filter aid and a method of using the same are disclosed that effectively removes contaminants from water-based metal forming liquids used in aluminum forming, rolling and other metal working processes. The filter aid includes a cellulosic material and a cationic p...
03/11/2008
7338605Filter aid and method of using same for reclaiming water-based fluids used in metal working processes
A filter aid and a method of using the same are disclosed that effectively removes contaminants from water-based metal forming liquids used in aluminum forming, rolling and other metal working processes. The filter aid includes a cellulosic material and a cationic p...
03/04/2008
7211605Super-hydrophobic fluorine containing aerogels
An aerogel material with surfaces containing fluorine atoms which exhibits exceptional hydrophobicity, or the ability to repel liquid water. Hydrophobic aerogels are efficient absorbers of solvents from water. Solvents miscible with water are separated from it becau...
05/01/2007
7018957Method of using high molecular weight demulsifiers
Homopolymers and copolymers of an esterified reaction product of an epoxidized mono-hydroxyl alcohol and a free radical polymerizable monomer are highly effective demulsifying agents. The molecular weight of the polymer is between from about 10,000 to about 500,000....
03/28/2006
6709600Method for removing organic liquids from aqueous solutions and mixtures
A method for removing organic liquids from aqueous solutions and mixtures. The method employs any porous material preferably in granular form and having small pores and a large specific surface area, that is hydrophobic so that liquid water does not readily wet its ...
03/23/2004
6623658Additive for controlling secondary contaminates
An additive for controlling the detrimental effects of secondary recycled contaminants in the papermaking process. In the preferred embodiment, the additive includes a first low molecular weight, cationic water-soluble polymer and a second low molecular w...
09/23/2003
6214236Process for breaking an emulsion
A process for removing even tightly emulsified oil, water and solid emulsions by the application of a shear force sufficient to break the emulsion. In one particular application, a tank bottom sludge produced in the petroleum industry is treated with the ...
04/10/2001
5977190Process for deionizing and concentrating emulsions
A process of washing an emulsion such as a silver halide emulsion which contains a hydrophilic colloid comprises deionizing the emulsion and coagulating the emulsion with an anionic polymer and separating the coagulum from the supernatant and resuspending...
11/02/1999
5746925Composition for coagulating oil
The invention discloses methods of making oil coagulant compositions, the oil coagulants made thereby and processes for using the coagulants to coagulate oil that has been spilled on water. The coagulant is made from a glyceride, such as, for example, the...
05/05/1998
5156767Emulsion breaking using alkylphenol-polyethylene oxide-acrylate polymer coated coalescer material
A method of emulsion breaking comprising contacting an emulsion with a substrate having adhered thereto an alkylphenol-polyethylene oxide-acrylate polymer. The emulsion breaking material is used to separate water-in-oil emulsion by coalescence....
10/20/1992
4529496Method and apparatus for separating slurries and emulsions
A mixture containing dispersed phase and continuous aqueous phase, with particulate solids being part of either or both phases, is separated by passing it one or more times through apertures in an endless oleophilic conveyor belt in a separation zone wher...
07/16/1985
4414354Aqueous polymeric latex coating compositions, products produced thereby, methods for preparing such compositions, and methods for using such compositions
The invention concerns compositions for producing adherent polymeric coatings on a variety of substrates. The coating compositions comprise polymeric latices of colloidal polymer particles of at least one polymer capable of being deposited in the form of ...
11/08/1983
4212733Oil-water separation filters
An oil-water separation filter, which comprises (1) a porous material comprising a sintered polyethylene powder bonded to (2) a fibrous layer having a thickness of about 0.5 to about 5 mm and a porosity of about 70 to about 90% comprising fibers having a ...
07/15/1980
4171264Method for continuously separating emulsions
A method and an apparatus for continuously separating disperse phase and a continuous phase from a liquid-liquid emulsion. The emulsion, such as an oil-water emulsion, is flowed into a contacting zone in which the emulsion is agitated with continuous phas...
10/16/1979
4083778Method for coalescing
A method and apparatus to effect coalescence of a first liquid suspended as minute droplets in a second liquid of different specific gravity. An endless small-pore matrix having internal pore surfaces preferentially attractive to the first liquid, and hav...
04/11/1978
4011158Oil-water separation process and apparatus
A system for removing oil from an oil-water dispersion such as in bilge water to form an effluent of high purity. At least one container for a coalescing medium (e.g., resin particles) is positioned in the interior of an upright reservoir wall and include...
03/08/1977
3992290Method for coalescing oil using a brominated monoolefin resin
A method for coalescing oil from an oil in water dispersion by passing the dispersion through a granular bed of brominated monoolefin resin....
11/16/1976
3948768Method and apparatus for separating oil from aqueous liquids
A method and apparatus are provided for separating fine oily particles from aqueous liquids at very high flow velocities by passing the mixture upwardly through an unconfined mass of oleophilic granules in a column with adequate velocity to separate and l...
04/06/1976
3948767Method and apparatus for separating oil from aqueous liquids
A method and apparatus are provided for separating oily particles from an emulsion thereof in an aqueous liquid. The emulsion is passed through a bed of oleophilic granules supported on a foraminous support, the oleophilic granules, by virtue of their den...
04/06/1976
 
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