Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 7385067 | Process for the preparation of compounds having a CFO bridge The invention relates to a process for the preparation of compounds containing at least one —CF2—O— bridge in the molecule, in which a) an acid is added onto at least one ketene dithioketal, b) the... | 06/10/2008 |
| 7368585 | Synthetic techniques and intermediates for polyhydroxy dienyl lactones and mimics thereof Synthetic methods and intermediates useful in the preparation of lactone containing compounds such as discodermolide and compounds which mimic the chemical or biological activity of discodermolide are provided. ... | 05/06/2008 |
| 7368101 | Process for the preparation of iopamidol and the new intermediates therein A process for the preparation of (S)-N,N′-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-5-[(2-hydroxy-1-oxo-propyl)amino]-2,4,6-triiodo-1,3-benzendicarboxamide (iopamidol) starting from 5-amino-N,N′-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodo-1,3-benzenedicarbox... | 05/06/2008 |
| 7351758 | Addictive composition and articles containing the same Clarified polyolefins such as polypropylene are used widely to make polymer articles, containers, and the like. Such articles may be manufactured by the injection of molten polymer into a mold or forming device in manufacturing processes at high rates. A clarified c... | 04/01/2008 |
| 7344761 | Liquid-crystalline compounds The invention relates to liquid-crystalline compounds of the formula (I), where R11, X11, L11, Y and W are as defined in claim 1, and to the use thereof in liquid-crystalline media, to liquid-crystalline media comprising at least one... | 03/18/2008 |
| 7342124 | Synthetic techniques and intermediates for polyhydroxy dienyl lactones and mimics thereof Synthetic methods and intermediates useful in the preparation of lactone containing compounds such as discodermolide and compounds which mimic the chemical or biological activity of discodermolide are provided. ... | 03/11/2008 |
| 7097887 | Liquid crystal compounds The use of a compound of formula (I) wherein R1 is an alkyl or alkenyl group, either of which may be optionally interposed with one or more oxygen or sulphur atoms, R2 is an alkyl or alkenyl... | 08/29/2006 |
| 7097856 | Dendrimeric support or carrier macromolecule The present invention provides a family of dendrimers that are useful as supports, vectors, carriers or delivery vehicles for a variety of compounds in biomedical and technological applications. In particular, the macromolecules may be used for the delivery of drugs... | 08/29/2006 |
| 7034183 | Process for the preparation of iopamidol and the new intermediated therein A process for the preparation of (S)-N,N′-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-5-[(2-hydroxy-1-oxo-propyl)amino]-2,4,6-triiodo-1,3-benzendicarboxamide (iopamidol) starting from 5-amino-N,N′-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodo-1,3-benzenedicarbox... | 04/25/2006 |
| 6916948 | Bis(1,3-dihydroxy-prop-2-yl) amine and derivatives thereof in the manufacture of polymers Derivatives of bis-(1,3-dihydroxy-prop-2-yl)amine are disclosed, together with the use of such derivatives and of bis(1,3-dihydroxy-prop-2-yl)amine itself in the preparation of polymers, in particular dendrimers. Some of the derivatives may be useful as non-ionic su... | 07/12/2005 |
| 6649227 | Difluorovinyl compound, liquid crystal composition and liquid crystal display Provided are liquid crystalline compounds having a wide liquid crystal phase temperature range, low viscosity, a large elastic constant ratio K33 /K11 and excellent solubility at low temperature, a liquid crystal composition using th... | 11/18/2003 |
| 6620468 | Dioxane derivatives, and liquid-crystalline medium The invention relates to novel dioxane derivatives of the formula I in which R1, R2, A1, A2, A3, A4, Z1, Z2, m and n are as defined herein, to their use as components of li... | 09/16/2003 |
| 6616990 | Chiral 1, 3-dioxane compounds The present invention relates to chiral 1,3-dioxane compounds and diastereomers thereof of the general formula I ##STR1## where R1, R2 and R3 are as defined in the description, and the use of these compounds as chiral dopa... | 09/09/2003 |
| 6323238 | Benzopyranyl guanidine derivatives, process for preparation thereof, and pharmaceutical compositions containing them The present invention relates to novel benzopyranyl guanidine derivatives of the formula 1, process for preparation therof and pharmaceutical use of the benzopyranyl guanidine derivatives. The benzopyranyl guanidine derivatives of the present invention ca... | 11/27/2001 |
| 6277833 | Substituted triols Substituted triols are prepared by reducing appropriately substituted carboxylic esters. The substituted triols can be used as active substances in medicaments.... | 08/21/2001 |
| 6225479 | Optically active bis-dioxane derivatives A compound of formula ##STR1## in which R1 and R2 each independently represent and alkyl or alkenyl group in which one or more hydrogen atoms is optionaly substituted by fluorine, chlorine, or cyano; and in which optionally one or mo... | 05/01/2001 |
| 6010642 | Azine derivative, process for the preparation thereof, nematic liquid crystal composition and liquid crystal display system comprising same Disclosed is to provide an azine derivative as a novel liquid crystal compound, a novel process for the preparation of an asymmetrical azine in a high reaction yield with an extremely small amount of by-products such as symmetrical azines, a nematic liqui... | 01/04/2000 |
| 5976408 | Acrylonitrile derivative, liquid crystal composition, and liquid crystal display device An acrylonitrile derivative expressed by the following general formula I, a composition comprising the derivative and having an improved viscosity and optical anisotropy, and a liquid crystal display device: ##STR1## wherein rings A1 to A | 11/02/1999 |
| 5911912 | Halovinyl ethers Halovinyl ethers of the general formula I ##STR1## in which R, A1, A2, A3, Z1, Z2, X1, X2, l, m and n are as defined herein are suitable as components of liquid-crystalline ... | 06/15/1999 |
| 5869702 | Polyol ether derivatives and production methods therefor Polyol ether derivatives, a method for producing the polyol ether derivatives, and a working fluid composition for a refrigerating machine containing a hydrofluorocarbon and a refrigeration oil containing the polyol ether derivatives as a base oil.... | 02/09/1999 |
| 5851424 | Photo cross-linkable liquid crystalline 1,4-dioxane-2,3 diyl derivatives The present invention is concerned with photo cross-linkable liquid crystalline compounds of the general formula ##STR1## wherein A1 and A2 each represent a cross-linkable, mesogenic residue, liquid crystalline mixtures which co... | 12/22/1998 |
| 5851427 | Photocross-linkable naphthyl derivatives Photocross-linkable naphthyl derivatives include compounds of the formula: ##STR1## wherein R1 and R2 each independently signify a cross-linkable group; S1 and S2 signify --(CY2)m -, --O(CY... | 12/22/1998 |
| 5800734 | 1-fluorocyclohexene-difluorophenyl derivatives A compound of the formula ##STR1## wherein R is C1 -C7 alkyl or C2 -C12 alkenyl; rings A and B each independently are 1,4-phenylene, trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl; Z1 is a sing... | 09/01/1998 |
| 5800733 | Photo cross-linkable liquid crystal derivatives The present invention is concerned with photo cross-linkable liquid crystalline compounds in the formula ##STR1## wherein for example: A,B,C,D,E,F independently is pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5... | 09/01/1998 |
| 5789605 | Synthetic techniques and intermediates for polyhydroxy, dienyl lactones and mimics thereof Synthetic methods for lactone-containing compounds such as the discodermolides are provided, as are compounds which mimic the chemical and/or biological activity thereof, and methods and intermediates useful in their preparation.... | 08/04/1998 |
| 5744058 | Dienes and liquid-crystalline media Dienes of the formula I ##STR1## in which n is 0, 1, 2, 3, 4 or 5, r is 1, 2 or 3, s is 1 or 2, ##STR2## is trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl, ##STR3## is trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl, unfluorinate... | 04/28/1998 |
| 5718845 | Tricyanovinyl substitution process for NLO polymers Nonlinear optical compounds which contain a heteroaromatic ring and may further comprise a tricyanovinyl group attached to the heteroaromatic ring.... | 02/17/1998 |
| 5698137 | Optically active dihydropyran derivative, and liquid crystal composition, liquid crystal device, and racemic mixture comprising the derivative A 2H-5,6-optically active dihydropyran derivative represented by the general formula (I) or (I'): ##STR1## wherein Rf represents a fluoroalkyl group having 1 or 2 carbon atoms; a liquid crystal composition and a liquid crystal device comprising the ... | 12/16/1997 |
| 5683623 | Dioxane derivatives Dioxane derivatives for use as components in liquid crystal devices (LCDs) of general formula (A), wherein X is CH or B; R1, R2 are each A1, OA1, OCOA2, or COOA2 ; A1 is a straight or... | 11/04/1997 |
| 5667721 | Liquid crystalline di-1,3-dioxane derivatives Liquid crystalline compounds having two dioxane rings, the dipole moments of which are unidirectional. These are compounds of the general formula ##STR1## wherein A and B each independently is cyclic or acyclic hydrophobic residues; and n is 0, 1 or ... | 09/16/1997 |
| 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 |
| 5541323 | Mesogen-containing aromatic anhydride compounds Anhydride compounds which contain at least one rodlike mesogenic moiety and at least two anhydride groups per molecule, wherein each of said aromatic anhydride groups is linked to the mesogen via an ester linkage are prepared. These anhydride compounds ar... | 07/30/1996 |
| 5527964 | Acetaldehyde derivatives, their preparation process and their use Azines of formula (I): ##STR1## in which R and R' either are identical and represent an alkyl radical containing 1 to 4 carbon atoms or an alkenyl radical containing 3 to 5 carbon atoms, or together form a radical of formula (II): --CHR1 -... | 06/18/1996 |
| 5516918 | Substituted benzopyran and tetrahydronaphthalene compounds useful for safening herbicides in crops There is provided a method for safening herbicides in crop plants by using substituted benzopyran or tetrahydronaphthalene compounds of formula I ##STR1## Further provided are compounds of formula II and compositions comprising a herbicide and an ant... | 05/14/1996 |
| 5478497 | Tetracyclic compounds and liquid crystalline mixtures containing them Compounds of the formula ##STR1## wherein rings A, B and C, Z1, Z2, Z3, R1, R2 and R3 are defined in the specification, their manufacture, liquid crystalline mixtures which contain suc... | 12/26/1995 |
| 5458806 | Fluoromethyl ketones and liquid-crystalline media Fluoromethyl ketones of the formula I ##STR1## are suitable as components of liquid-crystalline media wherein R is H, a substituted or unsubstituted alkyl or alkenyl radical having 1 to 15 carbon atoms, A1 and A2 are each, indep... | 10/17/1995 |
| 5455265 | Method of treatment with compounds having selective agonist-like activity on RXR retinoid receptors Process of treatment of mammals, including humans to treat diseases or conditions of the type which are normally treated with retinoid-like compounds is disclosed, with pharmaceutical compositions containing an active compound which is a selective agonist... | 10/03/1995 |
| 5405968 | Polyketomethine dyes Methine dyes with a polyketo group I ##STR1## where A is ##STR2## R1 is a 5- or 6-membered cycloaliphatic radical which contains one or two hetero atoms from the group --NR4 --, --O-- and --S-- and which may be fused t... | 04/11/1995 |
| 5360815 | Heteroaryl cinnamic acids as inhibitors of leukotriene biosynthesis Compounds having the formula I: ##STR1## are inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating angina, cerebral spasm, ... | 11/01/1994 |
| 5354502 | 1,3-dioxane derivative and liquid crystal compositions containing it A 1,3-dioxane derivative and a liquid crystal composition containing it as expressed by the general formula ##STR1## (where R is a straight chain alkyl group of carbon number 1 to 10, A is a single bond or --CH2 CH2 -- group, n ... | 10/11/1994 |