Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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 |
| 8063201 | Carbohydrates Carbohydrates having functional groups, such as carboxylic acid groups and methods of making such carbohydrates. ... | 11/22/2011 |
| 7943761 | Cellulose based optical film material and method for forming the same The present invention discloses a cellulose based optical film material with the following structure: wherein R1 is —H or —C(O)R4, R4 is alkyl or aryl; R2 is —C(O)R5 | 05/17/2011 |
| 7868164 | Cellulose ethers A cellulose ether which has from 4,000 to 10,000 anhydroglucose repeat units and is substituted with (a) on the average from 0.0003 to 0.08 moles, per mole of anhydroglucose unit, of a substituent comprising an alkyl or arylalkyl group having from 8 to 24 carbon ato... | 01/11/2011 |
| 7662953 | Method for manufacturing cellulose carbamate The invention relates to a method for manufacturing cellulose carbamate. In the method, an auxiliary agent and urea in solution form and possibly in solid form are absorbed into cellulose, and a reaction between cellulose and urea is carried out in a mixture contain... | 02/16/2010 |
| 7390565 | Polysaccharide structures comprising an unsubstituted polysaccharide and processes for making same Polysaccharides, more particularly, polysaccharide structures, especially fibers, comprising an unsubstituted polysaccharide, webs comprising such polysaccharide structures and processes for making such polysaccharide structures and/or webs are provided. ... | 06/24/2008 |
| 7311842 | Lignocellulose-based anion-adsorbing medium (LAM) and process for making and using same for the selective removal of phosphate and arsenic anionic contaminants from aqueous solutions A lignocellulose-based anion-adsorbing medium (LAM) and process for making and using same for selectively removing phosphates and arsenic contaminants from aqueous solutions is disclosed. Making the LAM comprises (a) dissociating cations such as Fe and Al, from thei... | 12/25/2007 |
| 7291247 | Absorbent sheet made with papermaking fibers with durable curl A process for bleaching high bulk cellulosic fiber and producing a durable elevated curl index includes: (a) concurrently bleaching, heat treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consistency generally under condition... | 11/06/2007 |
| 7244840 | Admixture, extrudable hydraulic composition and method for the selection of admixture A nonionic water-soluble cellulose ether is characterized in that when 3 pbw of the nonionic water-soluble cellulose ether is added to a mixture of 90 pbw of cordierite, 10 pbw of ordinary Portland cement, and 33 pbw of water, immediately followed by kneading at 20Â... | 07/17/2007 |
| 7151173 | Admixture, extrudable hydraulic composition and method for the selection of admixture A nonionic water-soluble cellulose ether is characterized in that when 3 pbw of the nonionic water-soluble cellulose ether is added to a mixture of 90 pbw of cordierite, 10 pbw of ordinary Portland cement, and 33 pbw of water, immediately followed by kneading at 20Â... | 12/19/2006 |
| 7026471 | Purification method of hydroxypropylmethyl cellulose phthalate The present invention relates to a purification method of hydroxypropylmethyl cellulose phthalate, more particularly to a method of preparing high-purity hydroxypropylmethyl cellulose phthalate through a simple crushing process which comprises: increasing fluidity o... | 04/11/2006 |
| 7018955 | Drilling fluid, apparatus, and method Disclosed are drilling fluids that include carboxyalkylated corn hulls in an amount effective to inhibit fluid loss from a wellbore formation. The carboxyalkylated corn hulls are heat stable and surprisingly effective at inhibiting fluid loss. Also disclosed are a d... | 03/28/2006 |
| 6987181 | Oxidized polymeric carbohydrates and products made thereof The present invention relates to a polysaccharide having functional groups, wherein said groups are aldehyde groups formed at positions C2 and/or C3 as well as at position C6 of the anhydroglucose units of the polysaccharide chain. Preferably th... | 01/17/2006 |
| 6951933 | Superabsorbent polymer The present invention provides a polymer derived from a cellulosic, lignocellulosic, or polysaccharide material having superabsorbent properties. Methods for making the polymer and personal care absorbent products that incorporated the polymer are also provided.... | 10/04/2005 |
| 6936746 | Polyelectrolyte solid system, method for the production thereof and a wound dressing A polyelectrolyte solid system, especially provided in the form of flocks, flock composites, nonwovens of paper, comprised of a mixture of fibrous entities containing polyanion-polycation complexes and entities containing polyanions and/or containing polycations. A ... | 08/30/2005 |
| 6936278 | Microparticles A process for producing microparticles, in which an aqueous solution of purified amylopectin-based starch of reduced molecular weight is prepared, the solution is combined with biologically active substance, an emulsion of starch droplets is formed in an outer phase... | 08/30/2005 |
| 6933381 | Method of preparing modified cellulose ether Process for the production of polysaccharide ethers, e.g. cellulose ethers, are disclosed wherein salts formed during the process, e.g., sodium nitrate or sodium acetate, are converted to their corresponding acids and bases by means of an electric current, preferabl... | 08/23/2005 |
| 6933380 | Excipients containing low residual solvent and method for producing the same The present invention provides low-residual-solvent containing excipients with residual solvent less than | 08/23/2005 |
| 6929884 | Method for manufacture of films containing insoluble solids embedded in cellulose-based films A film which slowly releases solids is prepared by dissolving cellulose in a solvent such as an alkali metal salt, for example L1Cl in a polar solvent such as DMAC, dispersing the solid in the solution and gelling the solution with water to form a film. | 08/16/2005 |
| 6761272 | Filters consisting of filter paper or paper-type nonwoven material Filters and methods for producing filter paper or paper-like nonwoven materially consisting partially or wholly of fibrous cellulose containing material. The filters provided are characterized by high filtration capacity and are capable of absorbing and binding unde... | 07/13/2004 |
| RE38484 | Cationized hydroxyalkylcellulose and process for producing the same Cationized hydroxyalkylcelluloses, which are highly compatible with surfactants, are represented by the following formula (I): wherein R1, R2 and R3 represent a hydrogen atom or a group represented ... | 03/30/2004 |
| 6635755 | Oxidized polymeric carbohydrates and products made thereof The present invention relates to a polysaccharide having functional groups, wherein said groups are aldehyde groups formed at positions C2 and/or C3 as well as at position C6 of the anhydroglucose units of the polysaccharide chain. Preferably the polysacc... | 10/21/2003 |
| 6635754 | Cellulose particles, method for producing them and their use Cellulose particles are described that have cationic groups in their interior. In one aspect, at least 10%, and preferably 50% or more, of the cationic groups are present within the particle interior. Also disclosed are particular combinations of such cel... | 10/21/2003 |
| 6627749 | Powdered oxidized cellulose A controlled chemical method to produce oxidized cellulose in high yields (75-95%) and different levels of oxidation (carboxyl content | 09/30/2003 |
| 6624298 | Esterified polysaccharide products and ଲ-lactone ring opened ketene dimer products containing the compositions, and process of making the same Esterified polysaccharides and the process of making such products are disclosed. The process can be enzymatic where an enzyme is used as a catalyst for the reaction. The process can also be chemical where no enzyme is used. Novel Products are obtained th... | 09/23/2003 |
| 6602994 | Derivatized microfibrillar polysaccharide A method for producing derivatized microfibrillar polysaccharide, including but not limited to cellulose, derivatized by steric and/or electrostatic forces, where the electrostatic forces are provided by anionic charge or by a combination of both anionic ... | 08/05/2003 |
| 6590095 | Method of preparing a cellulose carbamate solution The present invention concerns a method of preparing a cellulose carbamate solution by dissolving cellulose carbamate in sodium hydroxide solution at temperatures of | 07/08/2003 |
| 6579977 | Biosorbents and process for producing the same A process is disclosed for producing biosorbents by phosphorylation of cellulose-containing materials with phosphoric acid or ammonium phosphate in the presence of urea. Also disclosed are biosorbents with particular good use properties. Biosorbents of th... | 06/17/2003 |
| 6562961 | Aminoalkyl trialkyl silyl cellulose and a method for coating surfaces The invention relates to polysaccharide derivatives comprising a) at least one hydrophobic and b) at least one nitrogen-containing substituent; in particular, the derivative is a cellulose ether which, as substituent a), has a trialkylsilyl and, as substi... | 05/13/2003 |
| 6559134 | Solid preparation containing low-substituted hydroxypropyl cellulose and production process thereof Provided are a solid preparation which rapidly disintegrates in the oral cavity when taken together with the saliva in the oral cavity or a small amount of water, can be prepared easily and has strength enough to retain its formability upon production or ... | 05/06/2003 |
| 6548659 | Process for ammoniating cellulosic materials Process for enriching the organic nitrogen content of commercial scale quantities of cellulosic materials which includes the steps of: a) placing substantially dry or unwetted cellulosic material in a pressurizable reactor; b) injecting an ammonia or ammo... | 04/15/2003 |
| 6531593 | Method for production of cellulose derivatives and the resulting products Cellulose derivatives are formed by first crosslinking cellulose and subsequently reacting the crosslinked cellulose with a reagent capable of forming a cellulose ether or ester. Many crosslinking agents are suitable but those forming ether linkages betwe... | 03/11/2003 |
| 6500947 | Superabsorbent polymer The present invention provides a polymer derived from a cellulosic, lignocellulosic, or polysaccharide material having superabsorbent properties. Methods for making the polymer and personal care absorbent products that incorporated the polymer are also pr... | 12/31/2002 |
| 6455691 | Preparation of chemically reactive polysaccharides This invention describes improvements in or relating to the production of polysaccharide derivatives; more particularly it relates to a method of converting insoluble polysaccharides to a form in which they form part of an anhydrous system in which they m... | 09/24/2002 |
| 6380381 | Low-substituted hydroxypropyl cellulose The present invention provides low-substituted hydroxypropyl cellulose exhibiting good granulation characteristics and tablet properties. Specifically, there is provided low-substituted hydroxypropyl cellulose having a hydroxypropoxyl content in the range... | 04/30/2002 |
| 6362330 | Polysaccharide-based thermoplastic material, process for preparing the same and method of use thereof The present invention relates to novel thermoplastic materials based on polysaccharide ethers which are simultaneously substituted by carboxylic acid ester groups and carbamate groups, together with mixtures of such derivatives with low molecular weight a... | 03/26/2002 |
| 6242595 | Process for the recovery of cellulose carbamate The present invention comprises a process for the recovery from a reaction mixture of cellulose carbamate produced by conversion of cellulose with excess urea in an inert organic liquid reaction carrier, wherein the reaction mixture is treated with added ... | 06/05/2001 |
| 6197951 | Starch graft copolymer blast media The invention discloses a starch graft poly(meth)acrylate blast media which is effective in paint removal. The media is superior to a physical blend of the components (i.e., starch and acrylic polymers) and to either a starch polymer or an acrylic polymer... | 03/06/2001 |
| 6197950 | Cationized hydroxyalkylcellulose and process for producing the same Cationized hydroxyalkylcelluloses, which are highly compatible with surfactants, are represented by the following formula (I): ##STR1## wherein R1, R2 and R3 represent a hydrogen atom or a group represented by the formula ... | 03/06/2001 |
| 6103885 | Method of making amide modified carboxyl-containing polysaccharide and fatty amide-modified polysaccharide so obtainable The Invention pertains to a process for the amidation of a material having at least one carboxyl-containing polysaccharide. The provided process involves a first step in which the carboxyl groups are reacted with an ammonium donor of the general formula >... | 08/15/2000 |
| 6075166 | Photolytically cleavable encoding and linking agents for use in combinatorial chemistry The present invention is to novel photochemically cleavable aryl sulfonamides of the formula P--A3 --A2 --A1 --S(O)2 NR1 R2 wherein R1 and R2 are independently selected from opt... | 06/13/2000 |
