"The radio craze will die out in time."
Thomas Edison ; 1922
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 |
| 8003828 | Method of producing reduced coenzyme Qcrystals with excellent handling properties The present invention provides a method of producing reduced coenzyme Q10 crystals suitable for commercial scale production thereof. According to a method of the present invention of producing a reduced coenzyme Q10 crystal which compris... | 08/23/2011 |
| 7524993 | Method of producing reduced coenzyme Qas oily product The present invention provides a method for obtaining reduced coenzyme Q10 which is useful as an ingredient in foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, drinks, feeds, cosmetics, medicines, remedies, pre... | 04/28/2009 |
| 7230141 | Method for producing toluol derivatives A process for preparing toluene derivatives of the formula I, where R1, R2 and R3 independently of one another are hydrogen, halogen, C1–C6-alkyl, hydroxyl... | 06/12/2007 |
| 7208639 | Method of producing reduced coenzyme Qas oily product The present invention provides a method for obtaining reduced coenzyme Q10 which is useful as an ingredient in foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, drinks, feeds, cosmetics, medicines, remedies, pre... | 04/24/2007 |
| 7049449 | Method for the preparation of lariciresinol cyclolariciresinol and secoisolariciresinol A method for the preparation of lariciresinol, cyclolariciresinol or secoisolariciresinol, which method includes the steps of a) reducing hydroxymatairesinol to give 7-hydroxy-secoisolariciresinol, and b) subjecting the 7-hydroxy-secoisolariciresinol obtained in ste... | 05/23/2006 |
| 6852895 | Practical, cost-effective synthesis of CoQ10 The present invention provides a convergent method for the synthesis of ubiquinones and ubiquinone analogues. Also provided are precursors of ubiquinones and their analogues that are useful in the methods of the invention. ... | 02/08/2005 |
| 6541673 | Process for oxyalkylating phenolic compounds Phenolic polyether polyols are prepared by a two stage oxyalkylation process, a first stage performed at a high oxyalkylation temperature and a second stage at a lower oxyalkylation temperature. Despite the use of high temperature during oxyalkylation, po... | 04/01/2003 |
| 6512147 | Apparatus and process for generating mixed multi-component vapor A mixed liquid of two or more components different in boiling temperature from each other and soluble in or compatible with each other is evaporated into a mixed vapor having a similar composition to that of the mixed liquid by using an apparatus having a... | 01/28/2003 |
| 6489514 | (-)-Secoisolariciresinol as an antioxidant obtained from a new natural source namely stereospermum personatum This invention relates to a pharmaceutical composition comprising an effective amount of (-)-Secoisolariciresinol together with or associated with an additive useful as an antioxidant; a process for isolating the (-)-Secoisolariciresinol from the plant St... | 12/03/2002 |
| 6362378 | Method for etherifying a benzyl alcohol, resulting products and applications The present invention relates to a process for etherification of a benzyl type alcohol, to the products obtained and to their applications, in particular in the perfumery field. The etherification process of the invention consists of reacting a benzyl typ... | 03/26/2002 |
| 6274635 | Alkylated resorcinol derivatives for the treatment of immune diseases The present invention provides a method, compounds, and compositions for treating a disease associated with immune dysfunction. In accordance with the method, a pharmacologically-acceptable composition including at least one compound selected from the gro... | 08/14/2001 |
| 6271411 | Process for preparing 2-aryl-substituted indenes A process is disclosed for preparing 2-aryl-substituted indenes by reacting an indene with an arene compound substituted with an halogen atom, preferably a iodine atom, or with an organosulphonate group, said reaction being carried out in a basic medium i... | 08/07/2001 |
| 6013844 | Preparation of catechol monoethers and catechols A process for preparing catechol monoethers or catechols of the formula Ia or Ib ##STR1## where R1 and R2 are, independently of one another, hydrogen or C1 -C8 hydrocarbon radicals, and R3 is a C... | 01/11/2000 |
| 5936102 | Process for the preparation of 2,2,3,3-tetrafluoro-1,4-benzodioxanes, novel o-(2-bromo-1,1,2,2-tetrafluoroethoxy)-phenols, and novel 2-bromo-1,1,2,2-tetrafluoroethoxy-containing phenyl ethers The present invention is drawn to a process for preparing a 2,2,3,3-tetrafluoro-1,4-benzodioxane, by cyclocondensing a o-(2-bromo-tetrafluoroethoxy)-phenol in the presence of an acid binder.... | 08/10/1999 |
| 5709720 | Aromatic ethers of polyalkylphenoxyalkanols and fuel compositions containing the same Aromatic ethers of polyalkylphenoxyalkanols having the formula: ##STR1## or a fuel soluble salt thereof, wherein R is hydroxy, nitro or --(CH2)x -NR5 R6, wherein R5 and R6 are independ... | 01/20/1998 |
| 5508461 | Optically active 1-phenyl-2-substituted propane derivatives and methods of producing the same An (S)-1-phenyl-2-substituted propane derivative shown by the following formula (I) ##STR1## wherein R1 and R2 represent a lower alkyl group, etc., or R1 and R2 may form together an alkylene group, etc.; R | 04/16/1996 |
| 5416242 | Hydroquinone derivative Novel hydroquinone derivatives of the formulae (I) and (II), ##STR1## wherein R1 is an alkyl group having 7 to 11 carbon atoms, ##STR2## wherein each of R2 to R5 is independently a hydrogen atom, a lower alkyl gr... | 05/16/1995 |
| 5414158 | Method of preparing alkoxy-magnesium halides It has surprisingly now been discovered that alkoxy-magnesium halides of the general formula ROMgX wherein R is an alkyl having from about 1 to 18 carbon atoms and X is a halide can be synthesized in an inert hydrocarbon in just one step process by reacti... | 05/09/1995 |
| 5319148 | Preparation of pyrocatechol monoethers and pyrocatechols The preparation of pyrocatechol monoethers or pyrocatechols of the formula Ia or Ib respectively ##STR1## ( R1 and R2 =H or C1 --C8 -hydrocarbon radicals; R3 =C1 --C8 -hydro... | 06/07/1994 |
| 5262573 | Halomagnesium hydrocarbyloxide composition and process for preparation A substantially pure, chemically distinct halomagnesium alkoxide compound is formed by reaction of a dihydrocarbylmagnesium compound with a compound which will replace an hydrocarbyl functionality thereon with an hydrocarbyloxy functionality and thereafte... | 11/16/1993 |
| 5248835 | Method of producing a monoalkylether of a dihydric phenol compound A monoalkylether of a dihydric phenol compound is produced at a high conversion and selectivity by catalytically dehydration reacting a dihydric phenol compound with a lower monohydric alcohol in the presence of a catalyst comprising at least one inorgani... | 09/28/1993 |
| 5189225 | Process for catalytically producing monoalkylether of dihydric phenol compound A monoalkylether of dihydric phenol compound is produced by bringing a feed gas comprising a mixture gas of a dihydric phenol compound with a monohydric alcohol compound into contact with an active catalyst component comprising at least one member selecte... | 02/23/1993 |
| 5149888 | Hydroxylation of phenols/phenol ethers The phenols and phenol ethers, e.g., phenol itself, are effectively hydroxylated by reacting hydrogen peroxide therewith, in the presence of a catalytically effective amount of titanium dioxide.... | 09/22/1992 |
| 5146010 | Pyrolysis of naturally occurring cresylic acid mixtures A process for removing guaiacols from naturally-occurring cresylic acid mixtures by pyrolysis is described.... | 09/08/1992 |
| 5097078 | Catalytic hydroxylation of phenols/phenol ethers The phenols and phenol ethers are hydroxylated by reacting such phenols/phenol ethers with hydrogen peroxide, in the presence of (a) a catalytically effective amount of an alkali metal or alkaline earth metal salt of at least one protonic acid having a pK... | 03/17/1992 |
| 5082978 | Selective monomethylation of phenolic compounds Mono-, di- and triphenols are selectively monomethylated by reaction with para-dimethoxybenzene in the presence of a catalytically effective amount of an acid catalyst.... | 01/21/1992 |
| 5025095 | Substituted diallylphenol derivatives as reactive diluents for bismaleimides Substituted diallylphenol derivatives are useful as reactive diluents for bismaleimides. Formulations comprising bismaleimides and substituted diallylphenol derivatives are particularly useful in resin transfer molding and filament winding techniques.... | 06/18/1991 |
| 5015769 | 3-amino-4-nitrophenols, the process for preparation thereof and their use in dyeing keratinous fibers, and new intermediate 4,5-dinitrophenols New 3-amino-4-nitrophenols, the process for preparation thereof and their use in dyeing keratinous fibers, and new intermediate 4,5-dinitrophenols. The present invention relates to a 3-amino-4-nitrophenol of formula: ##STR1## where Z denotes --CH2 | 05/14/1991 |
| 4982012 | Two phase process for preparing 2-methallyloxyphenol from catechol 2-Methallyloxyphenol is produced selectively in good yield, high purity and without having to separate and recycle large amounts of catechol, in the reaction of methallyl chloride with catechol, by forming a substantially non-aqueous mixture of an alkali ... | 01/01/1991 |
| 4959391 | Phenol derivatives, pharmaceutical compositions containing these compounds and processes for the preparation of these compounds and compositions Phenol derivatives of the formula ##STR1## wherein A and B have the same or different meanings and each represent one of the groups --C.tbd.C--, cis--CH.dbd.CH-- or trans--CH.dbd.CH--, R1 is hydrogen, an optionally substituted alkyl or phe... | 09/25/1990 |
| 4946865 | Dipropargyloxybenzene compounds and their production A compound of the formula: ##STR1## wherein X is a hydrogen atom, a halogen atom, a C1 -C3 alkyl group or a C1 -C3 alkoxy group and Y is a hydrogen atom, a halogen atom, a cyano group, a formyl group, an et... | 08/07/1990 |
| 4851587 | Single solvent process for preparing 2-methallyloxy-phenol from catechol 2-Methallyloxyphenol precursor to 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran is prepared selectively and in good yield in the etherification of an alkali metal catecholate by methallyl chloride in an improved process using the same solvent medium f... | 07/25/1989 |
| 4822925 | Organosalts of metalate anions and process for the production of alkylene glycols therewith Novel vicinal dioxyalkylene organometalates comprising a cation having a hydrocarbyl-containing substituent are disclosed. The vicinal dioxyalkylene organometalates can be reacted with water to yield alkylene glycols.... | 04/18/1989 |
| 4820879 | Preparation of hydrocarbyloxy magnesium halides The present invention provides a process for making hydrocarbyloxy magnesium halides by reacting in an inert atmosphere under anhydrous conditions activated magnesium metal with an oxygen containing compound of 1 to 20 carbon atoms and an anhydrous hydrog... | 04/11/1989 |
| 4760087 | Phenol derivatives and pharmaceutical compositions containing these compounds Phenol derivatives of the formula ##STR1## wherein A and B have the same or different meanings and each represent one of the groups --C.tbd.C--, cis--CH.dbd.CH-- or trans--CH.dbd.CH--, R1 is hydrogen, an optionally substituted alkyl or phe... | 07/26/1988 |
| 4657700 | Fragrance compositions containing benzyl ethers The invention concerns novel fragrance compositions containing benzyl ethers of the formula ##STR1## wherein: R1 represents an alkyl group containing one to three carbon atoms, and, R2 represents hydrogen or an alkanoyl group co... | 04/14/1987 |
| 4644085 | Rooperol and its derivates The invention relates to a new anti-cancer chemical compound which has been called rooperol and certain derivatives thereof of the general formula ##STR1## in which A is chosen from the group including a phenyl group, a substituted phenyl group and -... | 02/17/1987 |
| 4639536 | Intermediate, its synthesis, and its use in a process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran 2,3-Dihydro-2,2-dimethyl-7-hydroxybenzofuran is prepared by reacting catechol with isobutylene oxide or with a compound having the general formula ##STR1## wherein R is halogen or hydroxyl, and X is halogen, in the presence of a base to form the... | 01/27/1987 |
| 4618627 | Catechol derivatives and pharmaceutical compositions thereof for inhibiting anaphylaxis (SRS-A) A catechol derivative represented by the formula ##STR1## The compounds of this invention are useful for the prophylaxis and treatment for various allergic diseases, ischemic heart diseases and inflammations caused by slow reacting substance of anaph... | 10/21/1986 |
| 4618728 | Water aided catechol etherification A method is disclosed for facilitating selective etherification of catechol with methallyl chloride in the absence of an etherification catalyst, in which there is employed a solvent system comprising an aliphatic ketone and an etherification aiding amoun... | 10/21/1986 |