Did You Know...
...In 1790, the cost to obtain a patent was between $4 and $5.
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 |
| 7220914 | Zwitterionic compounds and photovoltaic cells containing same Zwitterionic compounds, photovoltaic cell charge carrier layers containing such compounds, photovoltaic cells including such charge carrier layers, and related methods are disclosed. ... | 05/22/2007 |
| 7049464 | Process for producing of an aminoalkylsulfonic acid and a method of salt exchange for a salt thereof A process for producing an aminoalkylsulfonic acid of formula [2]: wherein R1 and R2 are each independently hydrogen, alkyl, aryl or aralkyl; and R3 and R4 are each indep... | 05/23/2006 |
| 6921774 | Compounds and their use as glycine transport inhibitors The invention provides novel compounds of the formula I below: wherein the meaning of each substituent is defined in the application. The compounds are useful as inhibitors of the glycine transporter and useful in the ... | 07/26/2005 |
| 6900350 | Method for the production of ω-aminoalkylsulphonic acids The invention relates to a method for the production of ω-aminoalkylsulphonic acids of general formula (I), where R1 and R2=optionally substituted alkyl groups with 1 20 C atoms and n=a whole number from 2 6, whereby an amine of formula (II), where R1 and R2 have t... | 05/31/2005 |
| 6455725 | Substituted cinnamic acids and cinnamic acid esters The invention relates to substituted cinnamic acids and cinnamic acid esters of formula (I), wherein X represents F, Cl or J and R1 and R2 are the same or different and represent hydrogen, an optionally substituted C1 -C | 09/24/2002 |
| 6451761 | N'N'-dichlorinated omega-amino acids and uses thereof A method of treating a CNS disorder in a subject in need of such treatment, the method comprising administering to the subject an effective amount of an N'N'-dichlorinated amino acid, peptide, peptidomimetic, amine, or a pharmacologically acceptable analo... | 09/17/2002 |
| 6310073 | Methods and compositions to treat glycosaminoglycan-associated molecular interactions Therapeutic compounds and methods for inhibiting a glycosaminoglycan (GAG)-associated molecular interaction in a subject, whatever its clinical setting, are described.... | 10/30/2001 |
| 6203823 | Calcium taurate as a dietary supplement Use of calcium taurate as an antihypertensive agent and dietary supplement. The compound is prepared by reacting taurine and calcium in a 2:1 molar ratio. The resulting mixture is diluted with alcohol and the remaining clear filtrate is crystallized. Calc... | 03/20/2001 |
| 6124496 | Method of preparing N-(2-aminoalkyl)-2-aminoethoxylate ethane sulfonate The present invention relates to a synthesis method of thionate diamine by the reaction of alkali metal isethionate with diols to form alkali metal isethionate ethoxylate having the following structural formula: HO(CH2 CH2 O)n ... | 09/26/2000 |
| 6099869 | Calcium taurate and antihypertensive drug for hypertension Use of calcium taurate as an antihypertensive agent and dietary supplement. The compound is prepared by reacting taurine and calcium in a 2:1 molar ratio. The resulting mixture is diluted with alcohol and the remaining clear filtrate is crystallized. Calc... | 08/08/2000 |
| 5948939 | Selective amidination of diamines An ω-guanidino--amino-acid (or its functional derivative) or a compound containing it may be prepared by the reaction of the ω-amino group of an ,ω-diamino acid (or its functional derivative) or a compound containing it with a formamidine... | 09/07/1999 |
| 5898084 | Preparation of N-acylaminocarboxylic acids and N-acylaminosulfonic acids and alkali metal salts thereof The process for preparing an N-acylaminocarboxylic or N-acylaminosulfonic acid or an alkali metal salt thereof from an alkali metal aminocarboxylate or aminosulfonate and a carboxylic glyceride comprises (a) preparing a suspension of the solid anhydrous alkali... | 04/27/1999 |
| 5879930 | Process for the enzymatic resolution of 2-amino-4-methyl-phosphinobutyric acid derivatives L-PTC (L-phosphinothricin, L-2-amino-4-methylphosphino-butyric acid) is the active herbicidal component of D,L-PTC and can be obtained according to the invention when D,L-PTC derivatives which are N-acylated and esterified on the phosphinic acid group as ... | 03/09/1999 |
| 5869725 | Derivatives of aminosulfonic acids, utilization of the same in the synthesis of pseudopeptides and process for their preparation Derivatives of gamma-amino-alpha,beta-unsaturated sulfonic acids, a process for the preparation of the same and their utilization in the synthesis of pseudopeptides characterized by the presence of at least a sulfonamide type bond conjugated to a double b... | 02/09/1999 |
| 5861369 | (2-carboxy-3-hydroxy-propyl)-iminodiacetic acid and derivatives The present invention relates to compounds of the formula 1 ##STR1## wherein R1 is selected from hydrogen and -R4 -R5 where R4 is selected from nothing C1 -C20 linear or branched alkyl... | 01/19/1999 |
| 5840972 | Process for preparing NG -monoalkyl-L-arginine and related compounds A process is disclosed for the preparation of NG -monoalkyl-L-arginine and related compounds and salts thereof, for example NG -monomethyl-L-arginine by reacting N-alkylaminoiminomethane sulphonic acid of formula (II) with an amino a... | 11/24/1998 |
| 5763737 | S-(2-disopropylamino) ethyl methylphonothioate ION with hydrogen peroxide A method for the reduction of toxicity of S-(2-diisopropylamino)ethyl methylphosphonothioate ions in a medium or mixture by reaction with hydrogen peroxide and a strong inorganic acid.... | 06/09/1998 |
| 5723133 | Cosmetics containing guanidine derivatives A guanidine derivative represented by formula (1), (2), (3) or its acid addition salt and a production process thereof ##STR1## wherein each of A and B is a C2 -C8 alkylene, D is a single bond, --CO-- or a C1 -C5... | 03/03/1998 |
| 5646327 | Method for preparing hydroxylamines using vinylic compounds without base neutralization and reaction mixture produced thereby Substituted hydroxylamines useful in photographic processing solution can be prepared by reacting a hydroxylamine with a vinylic compound having an electron withdrawing substituent in a suitable solvent, in the absence of a neutralizing base. The resultin... | 07/08/1997 |
| 5510510 | Inhibitors of farnesyl protein transferase Inhibition of farnesyl transferase, which is an enzyme involved in ras oncogene expression, and inhibition of cholesterol biosynthesis, are effected by compounds of the formula ##STR1## their enantiomers, diastereomers, and pharmaceutically acceptabl... | 04/23/1996 |
| 5430052 | Aminoalkanesulfonic acid derivatives and pharmaceutical compositions for use in preventing or treating heart diseases The present invention relates to a pharmaceutical composition for use in preventing or treating heart diseases in a mammal, which comprises at least one aminoalkanesulfonic acid derivative of the formula (I): ##STR1## wherein X is hydrogen or an amin... | 07/04/1995 |
| 5326906 | Process for the extractive removal of phospho- and sulfobetaines from acidic reaction solutions The ampholytes are extracted from the reaction solution with a liquid cation exchanger which is immiscible with the acidic aqueous reaction solution, where the cation exchanger is dissolved in at least one organic solvent which is immiscible with water an... | 07/05/1994 |
| 5312839 | Compounds and method for protection of cells and tissues from irreversible injury due to lactic acidosis Compounds and a method useful for protection of tissue cells in a mammalian body from irreversible damages due to lactic acidosis caused by oxygen deficiency. The protection is achieved by administering a compound having a cell membrane permeability and/o... | 05/17/1994 |
| 5302192 | Anti-fouling coating compositions The present invention relates to an anti-fouling coating composition that comprises a marine biocide and a binder which is a hydrolyzable film-forming seawater-erodible polymer. The polymer contains sulphonic acid groups in quaternary ammonium salt form.... | 04/12/1994 |
| 5262563 | Process for producing sulfoalkyl-substituted hydroxylamines There is provided a process for producing sulfoalkyl-substituted hydroxylamines useful as preservatives to be added to a color developer for photosensitive materials. In this process, the sulfoalkyl-substituted hydroxylamines can be easily synthesized by ... | 11/16/1993 |
| 5258141 | Degradable chelants having sulfonate groups, uses and compositions thereof New compounds are represented by Formula I: ##STR1## and salts and complexes thereof; wherein R is an alkyl group having at least one --SO3 H and at least one --OH; each R' is independently selected from hydrogen, an unsubstituted or inert... | 11/02/1993 |
| 5208369 | Degradable chelants having sulfonate groups, uses and compositions thereof New compounds are represented by Formula I: ##STR1## and salts and complexes thereof; wherein R is an alkyl group having at least one --SO3 H and at least one --OH; each R' is independently selected from hydrogen, an unsubstituted or inert... | 05/04/1993 |
| 5177256 | Betaine compound and detergent composition The present invention provides a novel betaine compound represented by the general formula: ##STR1## wherein R1 is a straight-chain or branched alkyl, alkenyl or hydroxyalkyl group having 8 to 22 carbon atoms; X is H or a hydroxyl gro... | 01/05/1993 |
| 5099065 | Betaine compound and detergent composition The present invention provides a novel betaine compound represented by the general formula: ##STR1## wherein R1 is a straight-chain or branched alkyl, alkenyl or hydroxyalkyl group having 8 to 22 carbon atoms; X is H or a hydroxy group; ... | 03/24/1992 |
| 4985591 | Acid catalysts for low temperature cure of coating compositions Preparation of a semi-crystalline catalyst for curing coating compositions wherein an isocyanate-sulfonate or -phosphonate is made by a Michael addition followed by chain extension with an isocyanate.... | 01/15/1991 |
| 4973732 | Polymer containing a polyisobutylene-derived backbone Polymers, such as polysiobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.... | 11/27/1990 |
| 4973733 | Method of functionalizing polymers Polymers, such as polyisobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.... | 11/27/1990 |
| 4895977 | Purification of alkanesulfonic acids using ozone The removal of oxidizable organic impurities which include alkylthiolsulfonate from alkanesulfonic acids by treatment with an ozone containing gas is disclosed. The treated products have improved color and odor and exhibit improved long-term color stabili... | 01/23/1990 |
| 4883880 | Process for the preparation of sulfoalkyl quaternary salts and for the production of alkane sultones Propane or butane sultones are prepared by the thermal decomposition of the corresponding aryl sulfoalkyl ethers wherein the alkyl part has three or four carbons between the sulfo group and the ether oxygen. When a tertiary amine is present, the final pro... | 11/28/1989 |
| 4877447 | Method and composition for increasing harvests of crops A method of increasing the harvest of a crop which comprises applying an effective amount of taurine to the crop or its seeds, and a composition therefor.... | 10/31/1989 |
| 4837330 | Preparation of sulfatobetaines Sulfatobetaines are prepared by reacting an adduct of a base having a tertiary N atom and sulfur trioxide with an alkylene oxide in the presence of an alkylene carbonate as a solvent.... | 06/06/1989 |
| 4781866 | Process for producing amidine sulfonic acid intermediates for guanidines An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II): ##STR1## with H2 O2 and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can th... | 11/01/1988 |
| 4687602 | Novel 2-substituted 3-sulfopropyl-ammonium betaines and processes for making same Novel 2-substituted 3-sulfo propyl-ammonium betaines are disclosed which have the formula ##STR1## and which are obtained in accordance with the invention by reacting allyl-or methallyl ammonium salt with hydrogen sulfite in the pH-value- of 2,0... | 08/18/1987 |
| 4657704 | Production of aminoalkylsulfonic acids Disclosed herein is a process for preparing with a high yield an aminoalkylsulfonic acid represented by the following general formula: ##STR1## wherein R1, R2 and R3 are each a hydrogen atom, an alkyl group having 1-3... | 04/14/1987 |
| 4656291 | Process for producing amidine sulfonic acids An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II): ##STR1## with H2 O2 and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can th... | 04/07/1987 |
