Quotables
"This is the patent age of new inventions for killing bodies, and for saving souls. All propagated with the best intentions."
Lord Byron ;
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 |
| 7109164 | Aniline-derived ligands for the thyroid receptor New thyroid receptor ligands are provided which have the general formula in which: X is —O—, —S—, —CH2—, —CO—, or —NH—; Y is —(... | 09/19/2006 |
| 7091270 | Pentabromobenzyl alkyl ethers and their use as fire retardants The present invention provides novel pentabromobenzyl alkyl ethers serving as highly effective flame retardants in polymers. The invention further provides a fire retarded polymer composition comprising said pentabromobenzyl alkyl ethers. ... | 08/15/2006 |
| 6800605 | Aniline-derived ligands for the thyroid receptor New thyroid receptor ligands are provided which have the general formula in which: X is —O—, —S—, —CH2—, —CO—, or —NH—; Y is —(CH2)n— where n is an i... | 10/05/2004 |
| 6576303 | Liquid crystal compounds exhibiting negative anisotropy of permittivity Novel liquid crystal compound having a negative and absolutely large value of dielectric anisotropy, being excellent in compatibility with other liquid crystalline compounds at a low temperature and being stable chemically and physically, as well as a liq... | 06/10/2003 |
| 6462044 | Nitrosated and nitrosylated phosphodiesterase inhibitors, compositions and methods of use The present invention describes novel nitrosated and/or nitrosylated phosphodiesterase inhibitors, and novel compositions containing at least one nitrosated and/or nitrosylated phosphodiesterase inhibitor, and, optionally, one or more compounds that donat... | 10/08/2002 |
| 6448449 | Process for preparation of (R)-1- (aryloxy)propan-2-ol A process for the preparation of (R)-1-(2,3-difluoro-6-nitrophenoxy)-propan-2-ol, which is a useful intermediate in the synthesis of the widely used antibiotic Levofloxacin is provided. A process for the preparation of (R)-1-(2,3-difluoro-6-nitrophen... | 09/10/2002 |
| 6333080 | Liquid-crystal alkenyltolan derivative, liquid-crystal composition, and liquid-crystal display element A liquid crystalline alkenyltolan derivative expressed by the general formula Ct H2t-1 --G--(CH2)m --A1 --B1 --(A2 --B2)n --(A3 --B3)p... | 12/25/2001 |
| 6331543 | Nitrosated and nitrosylated phosphodiesterase inhibitors, compositions and methods of use The present invention describes novel nitrosated and/or nitrosylated phosphodiesterase inhibitors, and novel compositions containing at least one nitrosated and/or nitrosylated phosphodiesterase inhibitor, and, optionally, one or more compounds that donat... | 12/18/2001 |
| 6316658 | N-cyclopropyl-2-difluoromethoxy-3-halogenoanilines and intermediates for the preparation thereof N-Cyclopropyl-2-difluoromethoxy-3-halogenoanilines which serve as important intermediates in the preparation of quinolonecarboxylic acids useful as synthetic antimicrobial agents from industrially inexpensive and easily available raw materials; and interm... | 11/13/2001 |
| 6172268 | Method for producing an optically active 1-substituted 2-propanol A method for producing an optically active 1-substituted 2-propanol of the following formula 1, which comprises reacting a hydroxy aromatic compound of the following formula 2 with an optically active propylene oxide in the presence of a catalyst: AOH Fo... | 01/09/2001 |
| 5998636 | Carbamate herbicides Substituted N-phenyl- and N-heteroarylalkylcarbamates of the formula I ##STR1## in which Q is a group ##STR2## R is halogen, trifluoromethyl, cyano, nitro or C1 -C3 haloalkoxy; Z is hydrogen or halogen; or Z and R together ... | 12/07/1999 |
| 5871675 | Crosslinked tinted polymers The invention relates to a novel process for the production of tinted mouldings, in particular tinted contact lenses, in which a crosslinkable tinted polymer comprising units containing a crosslinkable group and units containing a reactive dye radical is ... | 02/16/1999 |
| 5831114 | Carbamate herbicides Substituted N-phenyl- and N-heteroarylalkylcarbamates of formula (I), in which Q is a group (1), (2) or (3); R is halogen, trifluoromethyl, cyano, nitro or C1 -C3 haloalkoxy; Z is hydrogen or halogen; or Z and R together in the 2- an... | 11/03/1998 |
| 5643495 | 1,2,2,2-tetrafluoroethyl ethers, and liquid-crystalline medium 1,2,2,2-Tetrafluoroethyl ethers of the formula I R--(A1 --Z1)m --A2 --Z2 A3 --O--CHF--CF3(I) are suitable as components of liquid-crystalline media wherein R is H, a substituted or unsubst... | 07/01/1997 |
| 5585036 | Liquid crystal compounds containing chiral 2-halo-2-methyl ether and ester tails This invention provides chiral nonracemic compounds of general formula I which are useful as components of FLC compositions in SSFLC and DHFLC devices: ##STR1## wherein Z is a C.dbd.O group or a CH2 group, RF is a partially ... | 12/17/1996 |
| 5463138 | Process for preparing difluoromethoxyarenes and difluoromethylthioarenes Difluoromethoxyarenes and difluoromethylthioarenes of the general formula (I), Ar--Q--CHF2 (I) in which Ar represents optionally substituted aryl, and Q represents oxygen or sulphur, (which can be used as interme... | 10/31/1995 |
| 5453218 | Liquid crystal compounds containing chiral 2-halo-2 methyl alkoxy tails This invention provides chiral nonracemic compounds of formula ##STR1## wherein * indicates a chiral carbon, R1 and R2, independently of one another, can be an alkyl, alkenyl or alkynyl group wherein one or more non-neighboring ... | 09/26/1995 |
| 5446186 | Structure and synthesis of nitrophenyl-EGTA, a caged calcium, intermediates thereof and a method of producing a high photochemical yield of liberated calcium The synthesis and compound of a new caged calcium which is an ortho-nitrophenyl derivative of EGTA and various intermediates. It is synthesized in ten steps and 24% overall yield. The photosensitive chelator, nitrophenyl-EGTA, has a Kd for Ca | 08/29/1995 |
| 5401436 | Optically active compound An optically active compound of the formula (I): ##STR1## R is a halogen atom, a cyano group, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, --R' or --O--R' group; R' is a ##STR2## group, wherein Y ... | 03/28/1995 |
| 5393885 | Carbamic acid derivatives Compounds of the formula ##STR1## in which R1 is halogen, C1 -C3 alkyl, halo-C1 -C3 alkyl, C1 -C3 alkoxy, halo-C1 -C3 alkoxy or cyano and/or two substi... | 02/28/1995 |
| 5393776 | Tocotrienol analogs in the treatment of hypercholesterolemia and hyperlipidemia This invention relates to structurally novel acyclic tocotrienol analogs, which are useful for cholesterol/lipid lowering in cases of hypercholesterolemia and hyperlipidemia, and for atherosclerosis. Also provided are pharmaceutical compositions and a met... | 02/28/1995 |
| 5290477 | Optically active compound and liquid crystal composition containing the same An optically active compound represented by formula (I): ##STR1## wherein R1 represents an alkyl group having from 3 to 9 carbon atoms; R2 represents an alkyl group having from 3 to 7 carbon atoms; m and n each represent 1 or 2 ... | 03/01/1994 |
| 5225607 | Insecticidal ethers This invention relates to novel fluorinated ethers, useful as insecticides and acaricides, to processes and intermediates for their preparation, to insecticidal and acaricidal compositions thereof and to methods of combating and controlling insect and aca... | 07/06/1993 |
| 5220076 | Perfluoropolyethers and processes for their preparation The invention relates to new peroxide perfluoropolyethers having formula: ##STR1## wherein: A and B are end groups, X represents a (R'O)m R" group where R' is selected from the class consisting of --CF2 --, --CF2 --CF... | 06/15/1993 |
| 5200111 | Optically active compound An optically active compound of the formula (I): ##STR1## R is a halogen atom, a cyano group, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms --R' or --O--R' group; R' is a ##STR2## group, wherein Y i... | 04/06/1993 |
| 5183587 | Liquid crystalline compound A liquid crystal compound having a relatively low viscosity, a superior compatibility with other liquid crystalline compounds and suitable for preparing a liquid crystal device having a high response rate, and a superior liquid crystal composition contain... | 02/02/1993 |
| 5136114 | Process for the preparation of geminal diarylalkanes, new geminal diarylalkanes and alk(en)ylated aromatic compounds The invention relates to a new process for the preparation of geminal diarylalkanes of the formula ##STR1## by Friedel-Crafts alkylation of aromatic compounds with specific aliphatic halogen compounds (addition compounds of CCl4 , to ... | 08/04/1992 |
| 5104559 | Hydrogen perfluoroalkylaromatic ethers and related compositions and methods A lubricating compound having the structure: R1 --Rf --O--Ar--R2 wherein R1 is a monovalent radical selected from the group consisting of fluoride, unsubstituted aryloxys, substituted aryloxys, unsubstituted arylthio... | 04/14/1992 |
| 5105020 | Cycloalkane derivatives The invention concerns a cycloalkane derivative of the formula I, ##STR1## wherein Ar1 is optionally substituted phenyl or naphthyl; A1 is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene; Ar2 is o... | 04/14/1992 |
| 5105021 | Preparation of a difluorohalomethoxybenzene A higher yield of the difluorohalomethoxybenzene produced by the reaction of a metal phenolate with dibromodifluoromethane or bromochlorodifluoromethane can be obtained by conducting the addition of a metal alcoholate or a metal hydride as a reaction init... | 04/14/1992 |
| 5030760 | Tetrahydrophthalimides, and their production and use A compound of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom and R is a C1 -C8 alkyl group except isopropyl, which is useful as a herbicide.... | 07/09/1991 |
| 5030761 | Alkoxy-nitrobenzene and alkoxy-aminobenzene compounds useful in the production of tetrahydrophtalimides A compound of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom, which is useful as a herbicide.... | 07/09/1991 |
| 5013475 | Optically active ester compound and liquid crystal composition containing the same An optically active ester compound useful as a component of a ferroelectric liquid crystal composition is represented by the following formula: ##STR1## wherein R is C1-18 alkyl or C1-18 alkoxyl; R' is C1-18 alkyl or ... | 05/07/1991 |
| 4997987 | Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene from 3,5-dichloroanisole Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) from 3,5-dichloroanisole. Nitration of 3,5-dichloroanisole under relatively mild conditions gave 3,5-dichloro-2,4,6-trinitroanisole in high yield and purity. Ammonolysis of this latter compound ga... | 03/05/1991 |
| 4968836 | Process for the preparation of substituted cyclopropanecarbaldehydes The invention relates to a process for the preparation of cyclopropanecarbaldehydes of formula ##STR1## in which R1 is C1 -C4 alkyl or benzyl, which comprises (a) reacting a tetrahydrofuran of formula ##STR2## ... | 11/06/1990 |
| 4960950 | Formation of nitrophenyl ethers from polyols and nitroanisoles Disclosed is a novel process for effecting an ether interchange reaction by heating together in the presence of a basic catalyst, a nitroaromatic ether or thioether and an organic compound containing at least one hydroxyl or mercapto group. The novelty re... | 10/02/1990 |
| 4952733 | Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene from 3,5-dichloranisole Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) from 3,5-dichloroanisole. Nitration of 3,5-dichloroanisole under relatively mild conditions gave 3,5-dichloro-2,4,6-trinitroanisole in high yield and purity. Ammonolysis of this latter compound ga... | 08/28/1990 |
| 4837364 | Processes for preparing pentafluoroethoxy- and pentafluoroethylthiobenzene drivatives A process for the preparation of (pentafluoroethoxy)- and (pentafluoroethylthio)benzene derivatives either from phenol, thiophenol or from halobenzene. A halobenzene is reacted with trifluoroethanol or a phenol or a thiophenol is reacted with a compound o... | 06/06/1989 |
| 4816596 | Process for preparing trifluoroethoxybenzene or trifluoroethylthiobenzene A process for preparing substituted or unsubstituted trifluoroethoxy- or trifluoroethylthiobenzenes by reaction of a phenol or thiophenol, both of which may be substituted or unsubstituted, with a compound of the formula CF3 --CH2 --... | 03/28/1989 |
| 4766243 | Electrophilic fluorination of aromatic compounds A process for the electrophilic ring fluorination of aromatic compounds which comprises reacting a fluorinating agent from the group consisting of CF3 OF and CF2 (OF)2 with an aromatic compound of the formula ##STR1##... | 08/23/1988 |
