Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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 |
| 7589042 | Arylphenoxy catalyst system for producing ethylene homopolymer or copolymers of ethylene and α-olefins Disclosed is an arylphenoxy catalyst system for producing an ethylene homopolymer or copolymers of ethylene and α-olefins, and a method of producing an ethylene homopolymer or copolymers of ethylene and α-olefins having a high molecular weight under a high tempera... | 09/15/2009 |
| 6747166 | Process for preparing carotenoid polyene chain compounds and intermediates for preparing the same The present invention provides an intermediate compound used for synthesis of polyene chain structure, that is an important moiety of carotenoid compounds, a process for preparing the same, and carotenoid polyene chain compounds prepared by using the intermediate, a... | 06/08/2004 |
| 7405070 | Method for preparing (s)-indoline-2-carboxylic acid and (s)-indoline-2-carboxylic acid methyl ester using hydrolytic enzyme Disclosed is a method for preparing (S)-indoline-2-carboxylic acid and (S)-indoline-2-carboxylic acid methyl ester using an inexpensive industrially available enzyme capable of assuring superior optical purity and yield. At this time, the hydrolytic enzyme is select... | 07/29/2008 |
| 7361328 | Method of preparing ZSM-5 using variable temperature without organic template Disclosed is a method of preparing ZSM-5 having substantially 100% crystallinity by using variable temperatures in the absence of an organic template, characterized in that a reaction mixture having a molar composition of M2O/SiO2 (M: alkali me... | 04/22/2008 |
| 7332531 | Microporous high density polyethylene film Disclosed is a microporous high density polyethylene film for a battery separator and a method of producing the same. The microporous high density polyethylene film includes high density polyethylene with a weight average molecular weight of 2×105-5×10 | 02/19/2008 |
| 7304195 | Process for increasing production of benzene from hydrocarbon mixture A process for increasing the production of benzene from a hydrocarbon mixture. A process for producing an aromatic hydrocarbon mixture and liquefied petroleum gas (LPG) from a hydrocarbon mixture, and a solvent extraction process for separating and recovering polar ... | 12/04/2007 |
| 7301063 | Process for increasing production of light olefin hydrocarbon from hydrocarbon feedstock A process for increasing the production of light olefin hydrocarbons from a hydrocarbon feedstock. A process for producing an aromatic hydrocarbon mixture and liquefied petroleum gas (LPG) from a hydrocarbon mixture, and a process for producing a hydrocarbon feedsto... | 11/27/2007 |
| 7297831 | Process of preparing aromatic hydrocarbons and liquefied petroleum gas from hydrocarbon mixture Disclosed is a process of preparing aromatic hydrocarbons and liquefied petroleum gas (LPG) from a hydrocarbon mixture, in which a non-aromatic compound in the hydrocarbon feedstock mixture is converted into a gaseous material having a large amount of LPG through hy... | 11/20/2007 |
| 7214793 | Method of preparing 10H-dibenzo[b,f][11,4]thiazepin-11-one Disclosed is a method of preparing 10H-dibenzo[b,f][1,4]thiazepin-11-one, including reacting dithiosalicylic acid with 1-chloro-2-nitrobenzene in a basic aqueous solution in the presence or absence of a reducing agent, to prepare 2-(2-nitrophenylsulfuryl)benzoic aci... | 05/08/2007 |
| 7189289 | Cleaning agent and method for cleaning heater tubes Disclosed is a cleaning agent for heater tubes, which is capable of eliminating deposits such as soot particulates in tubes installed in industrial heaters that typically use oil, coal or gas. The cleaning agent of the present invention is prepared by formulating a ... | 03/13/2007 |
| 6991914 | Silent marker for an oil product and associated detection method A silent marker, method of marking a petroleum product with the silent marker, and method of detecting the silent marker. The marker is an ester derivative of fluorescent material, and the silent marker may be detected by measuring the fluorescence generated from th... | 01/31/2006 |
| 6946020 | Hydrogen purification module A compact hydrogen purification module capable of affording high-grade purified hydrogen, easy assembly and easy control of size is disclosed. The module includes a plurality of unit cells. Each of the unit cells includes two metal membranes permeable only by hydrog... | 09/20/2005 |
| 6896709 | Miniature fuel reformer and system using metal thin film A miniature fuel reformer utilizes a metal thin film and includes a plurality of unit modules connected together. Each module has a cylindrical inner housing with top and bottom walls defining a hydrogen separation reaction chamber, an outer housing surrounding and ... | 05/24/2005 |
| 6870073 | Process for separating normal paraffins from hydrocarbons and applications for the separated hydrocarbons There is provided with a process for separating normal paraffins from hydrocarbons of C5-10 using zeolite molecular sieve 5A, which comprises the steps of (a) selective adsorption (b) cocurrent purge (c) countercurrent desorption. The present proce... | 03/22/2005 |
| 6867340 | Disproportionation/transalkylation of aromatic hydrocarbons A catalyst for the disproportionation/transalkylation of various hydrocarbons consists of a carrier and a metal component supported on the carrier. The carrier comprises 10 to 80 wt % of mordenite and/or beta type zeolite with a mole ratio of silica/alumina ranging ... | 03/15/2005 |
| 6852361 | Method of on-line coating of a film on the inner walls of the reaction tubes in a hydrocarbon pyrolysis reactor A method of on-line coating a coat film on the inner wall of a reaction tube in a hydrocarbon pyrolysis reactor for preventing the formation and the deposit of coke on the inner walls. This method comprises the steps of vapor depositing a mixed solution of a metal a... | 02/08/2005 |
| 6841688 | Method of preparing optically pure (R)- or (S)- tetrahydrofuranyl ketone Disclosed is a method of preparing an optically pure (R)- or (S)-tetrahydrofuranyl ketone. By such a method, (R)- or (S)-2-tetrahydrofuran amide is converted to (R)- or (S)-2-tetrahydrofuran nitrile through dehydration in the presence of a dehydrating agent and an a... | 01/11/2005 |
| 6803340 | Catalyst for removing dioxin and preparation method thereof A catalyst for removing dioxin and a preparation method thereof. The catalyst is prepared by recycling a spent catalyst discharged from a hydro-desulfurization process of an oil refinery in which the spent catalyst comprises an alumina support (preferably, gamma alu... | 10/12/2004 |
| 6800585 | Catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same Disclosed are a catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same. Useful for the removal of nitrogen oxides is a catalyst prepared using spent catalysts having been absorbed with vanadium, nickel and sulfur in the hyd... | 10/05/2004 |
| 6790344 | Liquid-phase adsorption process for removing and concentrating heteroatom compounds in hydrocarbons Disclosed is a liquid phase adsorption process for removing and concentrating heteroatom compounds in hydrocarbons (HCH), comprising the steps of adsorption, copurging and regeneration. In the adsorption step, a liquid hydrocarbon stream is fed to an adsorber, which... | 09/14/2004 |
| 6783848 | Matte biaxially oriented polypropylene film with improved matte property and processability Disclosed is a matte biaxially oriented polypropylene film having improved matte characteristic and processability. The film comprises one or more surface layers made of a composition comprising 100 parts by weight of a resin blend of 40-60 wt % of polyethylene (I) ... | 08/31/2004 |
| 6673740 | Method for preparing a catalyst for reduction of nitrogen oxides The catalyst is prepared by recycling a spent catalyst discharged from a hydro-desulfurization process of an oil refinery in which the spent catalyst comprises an alumina support with a large specific surface area impregnated with low contents of vanadium... | 01/06/2004 |
| 6673231 | Method for removing sludge in crude oil tank and recovering oil therefrom Disclosed is a method for removing sludge in a crude oil storage tank by use of thermal oil discharged from a distillation tower of an oil refinery, such as atmospheric residue, vacuum residue, or vacuum gas oil, and recovering oil having various applicat... | 01/06/2004 |
| 6635792 | Process for producing aromatic hydrocarbon compounds and liquefied petroleum gas from hydrocarbon feedstock Disclosed are a process for producing aromatic hydrocarbon compounds and liquefied petroleum gas (LPG) from a hydrocarbon feedstock having boiling points of 30-250° C. and a catalyst useful therefor. In the presence of said catalyst, aromatic components ... | 10/21/2003 |
| 6602818 | Method for preparing a catalyst for selective catalytic reduction of nitrogen oxides Disclosed are a catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same. The catalyst is prepared using a spent catalyst discharged from a hydro-desulfurization process of an oil refinery in which the spent cataly... | 08/05/2003 |
| 6586597 | Continuous process for the preparation of optically pure decahydroisoquinolinecarboxamide The present invention relates to a continuous process for the preparation of [3S-(3, 4aଲ, 8aଲ)]-N-tert-butyl-decahydro-3-isoquinolinecarboxamide, an intermediate useful in the synthesis of compounds for the treatment of viral disea... | 07/01/2003 |
| 6514563 | Method of on-line coating film on the inner walls of the reaction tubes in a hydrocarbon pyrolysis reactor A method of on-line coating a coat film on the inner wall of a reaction tube in a hydrocarbon pyrolysis reactor for preventing the formation and the deposit of coke on the inner walls. This method comprises the steps of vapor depositing a mixed solution o... | 02/04/2003 |
| 6509504 | Method for the production of serinol Disclosed is a method for preparing serinol (2-amino-1,3-proanediol). From nitromethane, para-formaldehyde and sodium hydroxide, 1-nitro-1,3-propanediol sodium salt is prepared as a medical intermediate. In a fixed bed, this intermediate is allowed to und... | 01/21/2003 |
| 6485578 | Chemical cleaning process for removing fouling Disclosed is a chemical cleaning process for removing fouling from process lines of oil refining or petrochemical plants. The process lines are in an on-line state and a chemical cleaning agent is circulated through the process lines to remove the fouling... | 11/26/2002 |
| 6455302 | Method for optically resolving a racemic -substituted heterocyclic carboxylic acid using enzyme Disclosed is a method for optically resolving a racemic -substituted heterocyclic carboxylic acid (-HCCA) by taking advantage of enantioselectivity of enzymes. -HCCA is reacted with alcohol to give a racemic -HCCA ester, which ... | 09/24/2002 |
| 6441200 | Method for preparing DL--tocopherol with a high yield and high purity Disclosed is a method for preparing DL--tocopherol through the condensation of isophytol or phytol derivatives and trimethylhydroquinone (TMHQ) using a catalyst system comprising a divalent metal halogen compound, silica gel and/or silica-alumina, ... | 08/27/2002 |
| 6440721 | Method for preparing an R- or S-form of -substituted heterocyclic carboxylic acid and a counter enantiomeric form of -substituted heterocyclic carboxylic acid ester thereto using enzyme Disclosed is a method for preparing an R- or S-forms of -substituted heterocyclic carboxylic acid (-HCCA) and a counter enantiomeric form of -substituted heterocyclic carboxylic acid ester thereto by use of an enzyme. A racemic ³... | 08/27/2002 |
| 6429319 | Continuous process for the production of optically pure (S)-beta-hydroxy-gamma-butyrolactone Disclosed is a process for the production of optically pure (S)-beta-hydroxy-gamma-butyrolactone through the hydrogenation of substituted carboxylic acid derivatives. A solution containing 1 to 50% by weight of a substituted carboxylic acid derivative is ... | 08/06/2002 |
| 6395947 | Method for preparing diarylethane A method for preparing diarylethane is disclosed. Alkylation is carried out in a continuous type process at 100-300° C. under a pressure of 1-45 kg/cm2 G in the presence of a solid acid catalyst while a reactant mixture comprising alpha-methyl... | 05/28/2002 |
| 6384245 | Method for preparing DL--tocopherol with high yield Disclosed is a method for preparing DL--tocopherol with a high yield through the condensation of isophytol or phytol derivatives with trimethylhydroquinone (TMHQ) in the presence of a Zn--Al heterogeneous catalyst system. At 80 to 120° C., the con... | 05/07/2002 |
| 6380174 | Slime-removing composition for paper manufacture and method of controlling slime using the same Disclosed is a slime-removing composition comprising polyhexamethyleneguanidine phosphate and 2-bromo-2-nitro-1, 3-propanediol, represented by the following formulas I and II, respectively. With a synergistic effect, the composition has potent sterilizing... | 04/30/2002 |
| 6319975 | Composition for air permeable film of high processability and permeability and production of air permeable film An air-permeable film is prepared by mono-axially drawing a composition comprising a linear low density polyethylene resin having a mw. distribution from 5 to 20, 1 to 100 parts by weight of propylene resin, 1 to 30 parts by weight of an ethylene-propylen... | 11/20/2001 |
| 6248230 | Method for manufacturing cleaner fuels A method is provided for manufacturing cleaner fuels, in which NPC (Natural Polar Compounds), naturally existing in small quantities within various petrolic hydrocarbon fractions, are removed from the petrolic hydrocarbon fractions ranging, in boiling poi... | 06/19/2001 |
| 6222051 | Alpha-tocopherol 4-aminobenzoic acid ester compounds and method for preparing the same Alpha-tocopherol 4-aminobenzoate compounds, represented by formula (I), are prepared by the esterification of alpha-tocopherol with 4-aminobenzoic acid. The esters are converted into the element compounds in vivo, so that they have alpha-tocopherol's biol... | 04/24/2001 |
