Patents by Inventor Peter Andrews

Peter Andrews has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4988696
    Abstract: A method of treating a worm disease in a cat which comprises dermally applying to the cat 0.1-5 mg of praziquantel per kg of body weight.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: January 29, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Andrews, Herbert Voege
  • Patent number: 4945165
    Abstract: A 5-aminopyrazole of the formula (I) ##STR1## in which R.sup.2 represents CF.sub.3 or CCL.sub.2 F,R.sup.3 represents hydrogen or CH.sub.3and n represents the number 0 or 1.The 5-aminopyrazole of formula (I) is effective in combating insects, sense animals and nematodes.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: July 31, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uta Jensen-Korte, Reinhold Gehring, Otto Schallner, Jorg Stetter, Heinz-Jurgen Wroblowsky, Benedikt Becker, Bernhard Homeyer, Wolfgang Behrenz, Wilhelm Stendel, Peter Andrews
  • Patent number: 4931461
    Abstract: Pesticidal substituted 5-methylamino-1-arylpyrazoles of the formula ##STR1## in which R.sup.1 represents alkyl, andR.sup.2 represents halogenoalkyl.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: June 5, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uta Jensen-Korte, Otto Schallner, Jorg Stetter, Benedikt Becker, Wolfgang Behrenz, Wilhelm Stendel, Peter Andrews
  • Patent number: 4916120
    Abstract: Parasiticidally active avermectin derivatives of the formula ##STR1## in which R.sup.1 stands for hydrogen, OH, C.sub.1-5 -alkanoyloxy, .alpha.-L-oleandrosyloxy, .alpha.-L-oleandrosyl-.alpha.-L-oleandrosyloxy, 4'-C.sub.1-5 -alkanoyl-.alpha.-oleandrosyloxy or 4"-C.sub.1-5 -alkanoyl-.alpha.-L-oleandrosyl-.alpha.-L-oleandrosyloxy,R.sup.2 stands for hydrogen, OH, C.sub.1-5 -alkanoyloxy, or R.sup.2 stands for hydrogen when there is a double bond between C22 and C23,R.sup.3 stands for straight-chain or branched alkyl or alkenyl, andR.sup.4 stands for hydrogen, OH, C.sub.1-5 -alkanoyloxy, heterocyclylcarbonyloxy, or the bond between the C atoms C22 and C23 is a single or a double bond and the double bond of the cyclohexene ring can be between the C atoms C3 and C4 or between the C atoms C4 and C5.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: April 10, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Roben, Stendel Wilhelm, Peter Andrews
  • Patent number: 4914124
    Abstract: A method of combating endoparasites which comprises applying thereto or to an endoparasite habitat an endoparasiticidally effective amount of an N-organooxycarbamic acid ester of the formula ##STR1## in which R.sup.1 represents alkyl, cycloalkyl, alkenyl, alkinyl or aryl, which can optionally be substituted,R.sup.2 represents alkyl, alkenyl or alkinyl, which can optionally be substituted, andR.sup.3 represents alkyl, alkenyl or alkinyl, which can optionally be substituted.Those compounds wherein one of R.sup.2 and R.sup.3 is alkinyl are new.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: April 3, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Nikolaus Muller, Peter Andrews
  • Patent number: 4908377
    Abstract: Pesticidal 5-ethylamino-1-arylpyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen or alkyl,R.sup.2 represents halogenoalkyl andn represents a number 0, 1 or 2, with the proviso that if R.sup.1 represents hydrogen, R.sup.2 is not dichlorofluoromethyl and n is not 0.These compounds are not only active against plant, hygiene and stored product pests, but also, in the veterinary medicine sector, against animal parasites, such as scaly ticks, argasidae, scab mites, trombidae, flies (stinging and sucking), parasitic fly larvae, lice, hair lice, bird lice and fleas.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: March 13, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uta Jensen-Korte, Otto Schallner, Jorg Stetter, Peter Andrews, Benedikt Becker, Bernhard Homeyer, Wilhelm Stendel, Wolfgang Behrenz
  • Patent number: 4804675
    Abstract: A method of combating insects, sense animals and nematodes comprising applying to insects, arachnids and nematodes and/or their environment an effective amount of at least one 5-aminopyrazole of the formula (I) ##STR1## in which R.sup.1 represents hydrogen, alkyl or halogenoalkyl,R.sup.2 represents alkyl, halogenoalkyl, unsubstituted or substituted aralkyl or unsubstituted or substituted aryl,R.sup.3 represents hydrogen, alkyl or a radical ##STR2## Ar represents unsubstituted or substituted phenyl or unsubstituted or substituted pyridyl andn represents the number 0, 1 or 2,whereinX represents oxygen or sulphur andR.sup.4 represents hydrogen, alkyl, alkenyl, alkinyl, halogenoalkyl, alkoxyalkyl, alkylthioalkyl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted aryl, alkoxy, alkylthio, unsubstituted or substituted aryloxy, unsubstituted or substituted arylthio, alkylamino, dialkylamino or unsubstituted or substituted arylamino.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: February 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uta Jensen-Korte, Reinhold Gehring, Otto Schallner, Jorg Stetter, Heinz-Jurgen Wroblowsky, Benedikt Becker, Bernhard Homeyer, Wolfgang Behrenz, Wilhelm Stendel, Peter Andrews
  • Patent number: 4804655
    Abstract: Novel pesticidally active cyclic malonylphosphonic diamides of the formula ##STR1## in which X.sup. represents O or S,R.sup.1 represents alkyl, alkenyl, alkinyl, cycloalkyl, aryl or heteroaryl, each of which can be optionally substituted,R.sup.2 represents hydrogen, alkyl, aryl or aralkyl,R.sup.3 represents hydrogen, alkyl, aryl or aralkyl, andR.sup.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: February 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Nikolaus Muller, Gerhard Bonse, Peter Andrews, Wilhelm Stendel, Robert Steffens
  • Patent number: 4771048
    Abstract: The present invention relates to the use of thiadiazinones of the formula I ##STR1## in which R represents the radical of the formula ##STR2## wherein X.sup.1 represents O or S,R.sup.4 represents hydrogen or alkyl,R.sup.5 represents optionally substituted phenyl,R.sup.2 represents hydrogen, alkyl, cycloalkyl, aryl or aralkylfor combating endoparasites in veterinary medicine and to new thiadiazinones of the formula I and the preparation thereof.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: September 13, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Nikolaus Muller, Peter Andrews
  • Patent number: 4766144
    Abstract: 3-carbamoyl-4-hydroxy-couramins for combating parasitic helminths of the formula ##STR1## in which R.sup.1 represents hydrogen, halogen, alkyl, NO.sub.2, CN or alkoxy,X represents O, S, SO or SO.sub.2R.sup.2 represents alkyl, halogenoalkyl, phenyl, naphthyl or pyridyl, which can optionally be substituted; or the radical -X-R.sup.2, together with the radical R.sup.3 can also form an alkylenedioxy (-O-alk-O), halogenoalkylenedioxy, oxyalkyleneoxyalkylene (-O-Alk-O-Alk-) or oxyhalogenoalkylene-oxyhalogenoalkylene bridge; andR.sup.3 and R.sup.4 independently of one another represent hydrogen, halogen, CN, OH, NO.sub.2, amino, mono- or dialklylamino, alkyl, halogenoalkyl, aralkyl or aryl, which can optionally be substituted,can be used for combating parasitic helminths.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: August 23, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Nikolaus Muller, Eckart Kranz, Peter Andrews
  • Patent number: 4575501
    Abstract: 2-Arylhydrazino-2-thiazolines, acyl derivatives of these compounds and 2-arylazo-2-thiazolines, of the general formula ##STR1## and salts thereof, are new, are prepared as described and find use for combating ectoparasites and endoparasites, such as cattle and sheep ticks, and gastric and intestinal nematodes in ruminants and carnivors.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: March 11, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Otto Behner, Wilhelm Stendel, Peter Andrews
  • Patent number: 4565888
    Abstract: Anthelmintically active novel substituted salicylic acid amides of the formula ##STR1## in which X and Y each independently is halogen, and,R.sup.1 is hydrogen or acetyl.
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: January 21, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Andrews, Horst Boshagen, Heinrich Kolling
  • Patent number: 4558139
    Abstract: Bafilomycins of the formula ##STR1## in which R.sup.1 is hydrogen or CH.sub.3, andR.sup.2 is hydrogen, or the group ##STR2## are produced by culturing certain streptomyces, e.g. Tu 1922, Tu 2437 and Tu 2599. Those wherein at least one of the OH groups is acylated are new. The compounds are pesticidally active.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: December 10, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Paul Hagenmaier, Gerhard Werner, Hannelore Drautz, Hartwig Holst, Hans Zahner, Wilhelm Brandes, Paul Reinecke, Gerhard Zoebelein, Wilhelm Stendel, Peter Andrews, Klaus Schaller
  • Patent number: 4549116
    Abstract: In one form of the present preferred embodiment of the present invention it relates to a two-position feed-thru electric line cord piercing switching combination, of the rotary and even the rocker type, which saves electric energy by use of a half-wave diode rectifying means. The electric energy saving, two-position, combination switching means having only two electrical passing switching positions and thereby having no electrical "off" position. The switch will alternatingly provide either an electrical half-wave "dim" or an electrical full-wave "on" illumination to a single filament lamp, string of Christmas tree lamps and the like, and will even provide eight separate combinations, of one OFF and three separate illuminations, when electrically connected ahead of a, for example, conventional LEVITON rotary 4-position lamp socket switching means which uses a conventional 3-way incandescent lamp member which is removable inserted into the lamp socket portion thereof.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: October 22, 1985
    Inventor: Peter Andrews
  • Patent number: 4353913
    Abstract: The invention relates to 2-benzimidazolylcarbamic acid esters, substituted on the benzenoid nucleus by an aminoalkoxy, aminoalkylthio, an aminoalkylsulphinyl or an aminoalkylsulphonyl grouping. The invention also includes methods for making the compounds of the invention, compositions containing said compounds and the use of said compounds and compositions as anthelmintic agents.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: October 12, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Heinrich Kolling, Herbert Thomas, Peter Andrews
  • Patent number: 4287199
    Abstract: The invention relates to 2-benzimidazolylcarbamic acid esters, substituted on the benzenoid nucleus by an aminoalkoxy, aminoalkylthio, an aminoalkylsulphinyl or an aminoalkylsulphonyl grouping. The invention also includes methods for making the compounds of the invention, compositions containing said compounds and the use of said compounds and compositions as anthelminitic agents.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: September 1, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Heinrich Kolling, Herbert Thomas, Peter Andrews
  • Patent number: 4247546
    Abstract: The invention includes phosphonylureidobenzene compounds of the general formula ##STR1## or pharmaceutically acceptable salts in whichR.sup.1 and R.sup.2 are identical or different and represent an alkyl group, orR.sup.1 and R.sup.2 together represent a dimethylene group, a trimethylene group or a tetramethylene group,X and Y are identical or different and represent an oxygen atom or a sulphur atom andR.sup.3 and R.sup.4 are identical or different and represent an alkyl group, orR.sup.3 and R.sup.4 together represent a trimethylene group or a tetramethylene group, orR.sup.3 and R.sup.4, together with the carbon atom and nitrogen atom between them, form a thiazolidine ring system, which are used medicinally as parasiticides.The compounds are particularly effective in combatting helminths in carnivores.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: January 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Herbert Thomas, Peter Andrews
  • Patent number: 4196291
    Abstract: 2-Acyl-4-oxo-hexahydro-4H-pyrazino[2,1-a]isoquinoline derivatives of the formula ##STR1## wherein COR is the acyl radical of an up to 26 carbon atom acid and their physiologically acceptable acid addition and quaternary ammonium salts, are anthelmintics and can be produced by reacting 4-oxo-1,2,3,6,7,11b-hexahydro-4H-pyrazino[2,1-a]isoquinoline with an acid or a reactive functional derivative thereof. This is a division, or application Ser. No. 742,133, filed on Nov. 15, 1976, which in turn is a divisional of Ser. No. 533,467, filed on Dec. 16, 1974, now U.S. Pat. No. 4,001,411.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: April 1, 1980
    Assignee: Merck Patent Gesellschaft mit beschraenkter Haftung
    Inventors: Jurgen Seubert, Herbert Thomas, Peter Andrews
  • Patent number: 4166236
    Abstract: In one form of the present preferred embodiment of the present invention it relates to a three-position feed-thru electric line or wire cord piercing switching combination of the rotary type which at least saves electric energy by use of a half-wave diode rectifying means. The electric energy saving, three-position, combination switch having one "off" and two electrical passing switching positions.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: August 28, 1979
    Inventor: Peter Andrews
  • Patent number: 4162319
    Abstract: Isoquinolines of the formula ##STR1## wherein R.sup.1 is H, OH, alkyl; R.sup.2 is H, or an unsubstituted or substituted carbonyl, carbonyloxy or thiocarbonyl group; R.sup.3 is H, alkyl or hydroxy alkyl; R.sup.4 is H, alkyl or phenyl; R.sup.5 is O, H,H or H and alkyl, phenyl, halo or hydroxy; R.sup.6 and R.sup.7 are optional substituents; and R.sup.8 is H or alkyl, R.sup.2 being a thiocarbonyl or carbonyloxy group when R.sup.1 and R.sup.3 to R.sup.8 are H and X is O; and their physiologically acceptable salts, are antihelmintics, especially against cestodes and trematodes; some also possessing CNS activity, e.g., psychotropic and blood pressure regulating activity.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: July 24, 1979
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Jurgen Seubert, Rolf Pohlke, Herbert Thomas, Peter Andrews