Patents Assigned to Ciba-Geigy Corp.
  • Patent number: 5741639
    Abstract: A device for combined bioaffinity assay and electrophoretic separation is provided, which comprises a capillary system having two stages, a first stage in which bioaffinity interactions of analyte molecules and molecular recognition elements are performed, and a second stage, in which electrophoretic separation of the analyte molecules and subsequent detection of the separated species is accomplished. Within the first capillary stage the molecular recognition elements are attached and immobilized to the inside capillary wall, for example, by adsorption or by covalent binding to the capillary material. The method for combined bioaffinity assay and electrophoretic separation comprises flowing an analyte through a capillary system having two stages. In a first capillary stage the analyte molecules are captured by respective molecular recognition elements present in that stage.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: April 21, 1998
    Assignee: Ciba-Geigy Corp.
    Inventors: Kees Ensing, Peter Oroszlan, Aran Paulus, Carlo S. Effenhauser
  • Patent number: 5576276
    Abstract: A pH controlled protein removal system and method in the substantial absence of (a) enzyme and (b) a surfactantly effective amount of a surfactant is disclosed. The method comprises contacting a substrate with a cleaning composition therefor, which compostion is substantially free of (a) enzyme and (b) surfactantly effective amount of a surfactant, for a period of time at an alkaline pH and removing said substrate from said composition.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: November 19, 1996
    Assignee: Ciba Geigy Corp.
    Inventors: Fu-Pao Tsao, Rosalind Dandridge
  • Patent number: 5569597
    Abstract: The present invention relates to a novel method of inserting viral DNA, which optionally may contain cargo-DNA, into plants or viable parts thereof, but preferably into plants of the monocotyledon class, and most preferably into plants of the family Gramineae, using suitable transfer microorganisms. Further comprised by the invention are recombinant DNA, plasmid and vector molecules suitably adapted to the specific conditions of the process according to the invention and the transgenic plant products obtainable in accordance with the said process.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: October 29, 1996
    Assignees: Ciba Geigy Corp., Mycogen Plant Sciences, Inc.
    Inventors: Nigel H. Grimsley, Barbara Hohn, Thomas Hohn, Jeffrey W. Davies, Margaret I. Boulton
  • Patent number: 5489503
    Abstract: Novel UV absorbers of the bis- or tris-2'-hydroxyphenyltriazine type and their use in photographic materials, inks or recording materials for ink-jet printing, and surface coatings are described which conform to the formula ##STR1## in which the radicals R.sub.1 and R.sub.9 are as defined in claim 1.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: February 6, 1996
    Assignee: Ciba-Geigy Corp.
    Inventor: Vien V. Toan
  • Patent number: 5481039
    Abstract: Compositions comprisinga) a functional liquid or an internal combustion engine fuel andb) at least one compound of the general formula I ##STR1## wherein R.sub.1 is --(CH.sub.2 --X).sub.n R, where X=--S-- or --O--, n=0 or 1 to 18 carbon atoms, a phenyl group, a phenyl group which is substituted by at least one C.sub.1 -C.sub.18 alkyl group, a phenyl-C.sub.1 -C.sub.4 alkyl group or a phenyl-C.sub.1 -C.sub.4 alkyl group which is substituted by at least one C.sub.1 -C.sub.4 alkyl group, or R.sub.1 is an alkyl group of 1 to 18 carbon atoms which is substituted by at least one OH group, or R.sub.1 is a ##STR2## group in which the alkyl moiety contains 1 to 18 carbon atoms, and R.sub.2 and R.sub.3 are the same or different and are --H or, independently of R.sub.1, have the same meanings as R.sub.1, and M is B, Al, Fe, Cr, Sb or Bi, or M is a group M'--R' or a group M'--OR", where M' is Ti, Zr or Sn, and R' and R" is C.sub.1 -C.sub.18 alkyl or R' is ##STR3## wherein M' is defined above, and R.sub.1 ', R.sub.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: January 2, 1996
    Assignee: Ciba-Geigy Corp.
    Inventors: Hermann O. Wirth, Hans-Helmut Friedrich
  • Patent number: 5426158
    Abstract: A contact lens is described which is synthesized by reaction in a mold of a isocyanate capped poly(dialkylsiloxane) prepolymer with a poly(dialkylsiloxane) di- or polyalkanol. The clear polyurethane rubber contact lens is readily made completely wettable by a transfer-grafting process or post-treatment and has a high oxygen permeability.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: June 20, 1995
    Assignee: Ciba-Geigy Corp.
    Inventors: Karl F. Mueller, Paul Harisiades
  • Patent number: 5424057
    Abstract: Compounds of the formula ##STR1## in which R is alkyl having up to 4 carbon atoms, n has an average value of at least 9, X is a radical of the formula --C(.dbd.O)--(NH--SO.sub.2).sub.m -- in which m is 0 or 1 and, if m is 1, the carbonyl group may be bonded to the oxygen atom or to the nitrogen atom, and each of the radicals A.sub.1, A.sub.2 and A.sub.3, independently of the others, is hydrogen or an acyl radical, and salts of salt-forming compounds of formula I, as well as metal complexes of compounds of formula I, in which A.sub.1, A.sub.2 and A.sub.3 are hydrogen can be used as metal chelators and as auxiliaries in diagnosis.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: June 13, 1995
    Assignee: Ciba-Geigy Corp.
    Inventors: Heinrich Peter, Theophile Moerker
  • Patent number: 5399578
    Abstract: Compounds of the formula ##STR1## in which R.sub.1 is an aliphatic hydrocarbon radical which is unsubstituted or substituted by halogen or hydroxyl, or a cycloaliphatic or araliphatic hydrocarbon radical; X.sub.1 is CO, SO.sub.2, or --O--C(.dbd.O)-- with the carbon atom of the carbonyl group being attached to the nitrogen atom shown in formula I; X.sub.2 is a divalent aliphatic hydrocarbon radical which is unsubstituted or substituted by hydroxyl, carboxyl, amino, guanidino or a cycloaliphatic or aromatic radical, or is a divalent cycloaliphatic hydrocarbon radical, it being possible for a carbon atom of the aliphatic hydrocarbon radical to be additionally bridged by a divalent aliphatic hydrocarbon radical; R.sub.2 is carboxyl which, if desired, is esterified or amidated, substituted or unsubstituted amino, formyl which, if desired, is acetalized, 1H-tetrazol-5-yl, pyridyl, hydroxyl which, if desired, is etherified, S(O).sub.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: March 21, 1995
    Assignee: Ciba-Geigy Corp
    Inventors: Peter Buhlmayer, Franz Ostermayer, Tibur Schmidlin
  • Patent number: 5382659
    Abstract: The invention relates to novel aromatic acids, especially to compounds of formula ##STR1## wherein R.sub.1 is lower alkyl, R.sub.2 is lower alkyl, R.sub.3 is hydrogen, carboxy or sulfo, R.sub.4 is carboxy or sulfo, G is an unsubstituted or substituted 1,4-phenylene group or an unsubstituted or substituted 1,4-naphthylene group, and wherein either R.sub.5 and R.sub.6 together are an additional bond and L is an oxygen or sulfur atom or wherein R.sub.5 is hydrogen, R.sub.6 is halomethyl and L is an oxygen atom, and salts thereof, to the use of compounds I and their salts, to a process for the preparation of compounds I and their salts, to starting materials used in that preparation process, and salts thereof, to a process for the preparation of those starting materials and their salts, to a device in which the compounds I and their salts are used, and to a process in which that device is used.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: January 17, 1995
    Assignee: Ciba-Geigy Corp.
    Inventor: Jui Y. Chang
  • Patent number: 5378710
    Abstract: Compounds of the formula ##STR1## wherein carbon atoms 1 and 2 are linked by a single bond or a double bond, R.sub.1 is hydrogen, methyl or ethyl, and A is a group of the formula --N(--R.sub.2)--X-- wherein R.sub.2 is hydrogen or C.sub.1 -C.sub.4 alkyl and X is C.sub.1 -C.sub.12 alkylene or C.sub.3 -C.sub.6 cycloalkylidene; a group of the formula --N(--R.sub.2)--Y--Phe-- wherein R.sub.2 is as defined above, Y is a direct bond or C.sub.1 -C.sub.6 -alkylene and Phe is an unsubstituted or substituted phenylene radical; a group of the formula --O--X-- wherein X is as defined above, or a group --O--Y--Phe-- wherein Y and Phe are as defined above, are inhibitors of 5.alpha.-reductase and can be used for the therapeutic treatment of the human and animal body.
    Type: Grant
    Filed: October 6, 1993
    Date of Patent: January 3, 1995
    Assignee: Ciba-Geigy Corp.
    Inventor: Michel Biollaz
  • Patent number: 5376669
    Abstract: Compounds of formula I ##STR1## wherein Z, R, R.sub.1, R.sub.2 and X are as defined in the description, have valuable pharmaceutical properties and are effective especially against tumors. They are prepared in a manner known per se.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: December 27, 1994
    Assignee: Ciba-Geigy Corp.
    Inventors: Marc Lang, Edmond Differding, Jaroslav Stanek
  • Patent number: 5376378
    Abstract: A new polymer, the feed monomers and molar percents of which, exclusive of a polymerization initiator and crosslinker, are:A. (I) 42 mole % to 58 mole % of a siloxy silane of formula I,(II) 42 mole % to 58 mole % of an unsubstituted alkyl (meth)acrylate of formula II,(III) 0 to 5 mole % of a Group A monomer, and(IV) 0 to 16 mole % of an additional vinylic copolymerizable monomer;B. (I) 42 mole % to 58 mole % of a siloxy silane of formula I,(II) 21 mole % up to less than 42 mole % of an unsubstituted alkyl (meth)acrylate of formula II,(III) 0 to 5 mole % of a Group A monomer, and(IV) 0 to 29 mole % of an additional vinylic copolymerizable monomer; orC. (I) 16 mole % up to less than 42 mole % of a siloxy silane of formula I,(II) 42 mole % to 58 mole % of an unsubstituted alkyl (meth)acrylate of formula II,(III) 0 to 5 mole % of a Group A monomer, and(IV) 0 to 36 mole % of an additional vinylic copolymerizable monomer;where formula I is ##STR1## where formula II is ##STR2## in which R.sub.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: December 27, 1994
    Assignee: Ciba-Geigy Corp.
    Inventors: Xiaoling Li, Bret Berner
  • Patent number: 5354761
    Abstract: Compounds of formula I ##STR1## wherein Y, Z, S, S', m, n and R.sub.1 -R.sub.4 are as defined in the description, have valuable pharmaceutical properties and are effective especially against protozoal infections. They are prepared in a manner known per se.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: October 11, 1994
    Assignee: Ciba-Geigy Corp.
    Inventors: Jaroslav Stanek, Giorgio Caravatti, Hans-Georg Capraro, Jorg Frei
  • Patent number: 5344825
    Abstract: The invention relates to a novel advantageous oral dosage form for methanediphosphonates, especially the active ingredient disodium pamidronate. A preferred dosage form comprises:a) disodium-3-amino-1-hydroxypropane-1,1-diphosphonate (disodium pamidronate),b) a cationic macroporous ion exchange resin based on a styrene/divinylbenzene copolymer having an exchangeable aminophosphonate group and, where appropriate,c) further pharmaceutically acceptable excipients.The ingredients can be processed to form tablets, dragees, capsules etc.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: September 6, 1994
    Assignee: Ciba-Geigy Corp.
    Inventors: Satish C. Khanna, Jonathan Green
  • Patent number: 5342977
    Abstract: Salts of aminosulfonic acid derivatives of formula I ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each independently of the others an aliphatic hydrocarbon radical having from 7 to 21 carbon atoms,n is 0 or 1,As is the amidically bonded residue of a (D)- or (L)-amino acid or of a (D)- or (L)-amino acid derivative from the group consisting of Gly, Ala, Ser, Thr, Asp, Asp(R.sup.5), Glu, Glu(R.sup.5), Gla, Gla(R.sup.5) and Gla(R.sup.5).sub.2, andR.sup.4 and R.sup.5 are each independently of the other the amidically bonded radical of an unsubstituted or carboxy-substituted .omega.-amino-C.sub.2 -C.sub.3 alkanesulfonic acid, are described.Those salts have an immunostimulating action and can be used as medicaments.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: August 30, 1994
    Assignee: Ciba-Geigy Corp.
    Inventors: Gerhard Baschang, Albert Hartmann
  • Patent number: 5334583
    Abstract: Described are the use of hexopyranose compounds of the formula I ##STR1## for the prophylaxis and treatment of virus infections, and novel pharmaceutical preparations especially suitable for the use in accordance with the invention.The substituents in formula I have the meanings given in the claims.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: August 2, 1994
    Assignee: Ciba-Geigy Corp.
    Inventors: Bohumir Lukas, Karl H. S. Ruppin
  • Patent number: 5328992
    Abstract: Compounds of the formula ##STR1## in which R is alkyl having up to 4 carbon atoms, n has an average value of at least 9, X is a radical of the formula --C(.dbd.O)--(NH--SO.sub.2).sub.m -- in which m is 0 or 1 and, if m is 1, the carhonyl group may be bonded to the oxygen atom or to the nitrogen atom, and each of the radicals A.sub.1, A.sub.2 and A.sub.3, independently of the others, is hydrogen or an acyl radical, and salts of salt-forming compounds of formula I, as well as metal complexes of compounds of formula I, in which A.sub.1, A.sub.2 and A.sub.3 are hydrogen can be used as metal chelators and as auxiliaries in diagnosis.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: July 12, 1994
    Assignee: Ciba-Geigy Corp.
    Inventors: Heinrich Peter, Theophile Moerker
  • Patent number: 5322852
    Abstract: The invention relates to compounds of formula I ##STR1## wherein either R.sub.1 is a radical of formula Ia,--(CH.sub.2).sub.n --O--NH.sub.2 (Ia)in which n is 0 or 1, is hydrogen and R.sub.2 is a radical of formula Ib,--(CH.sub.2).sub.p --O--NH.sub.2 (Ib)in which p is 1 or 2, and wherein R is C.sub.1 -C.sub.2 alkyl which is attached to one carbon atom of the central piperidine ring system, but not to the same carbon atom as R.sub.1 of formula Ia or as R.sub.2 of formula Ib; and m is 1 or 2, and salts thereof. The invention further relates to the preparation of these compounds, to intermediates obtained during their synthesis, to pharmaceutical compositions which contain them, and to the use of said compounds for the therapeutic treatment of the human or animal body and for the preparation of pharmaceutical compositions.The compounds of formula I are inhibitors of ornithin decarboxylase.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: June 21, 1994
    Assignee: Ciba-Geigy Corp.
    Inventors: Jorg Frei, Jaroslav Stanek
  • Patent number: 5317100
    Abstract: Compounds of the formula ##STR1## in which R.sub.1 is hydrogen or lower alkyl, R.sub.2 is hydrogen or a hydroxyl protective group R.sub.2 ' and R.sub.3 is substituted or unsubstituted phenyl or lower alkyl can be prepared in a three-stage process from readily accessible .beta.-lactam starting materials.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: May 31, 1994
    Assignee: Ciba-Geigy Corp.
    Inventors: Jaroslav Kalvoda, Martin Kessler, Rene Lattmann, Gerardo Ramos
  • Patent number: D395600
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: June 30, 1998
    Assignee: CIBA Geigy Corp.
    Inventors: Sharla Borghorst, Erich Bauman, Peter Herbrechtsmeier, David Pietrobon, Michele De Lucchi, Torsten Fritze, Masahiko Kubo