Patents Represented by Attorney, Agent or Law Firm Steven R. Eck
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Patent number: 5506270Abstract: This invention provides a method for treating hypothalamic amenorrhea in a non-depressed female mammal by administering to the mammal an effective amount of a hydroxycycloalkanephenethyl amine compound of the following structural formula: ##STR1## in which A is a moiety of the formula ##STR2## wherein the dotted line represents optional unsaturation;R.sub.1 is hydrogen or alkyl;R.sub.2 is alkyl;R.sub.4 is hydrogen, alkyl, formyl, or alkanol;R.sub.5 and R.sub.6 are, independently, hydrogen, hydroxyl, alkyl, alkoxy, alkanoyloxy, cyano, nitro, alkylmercapto, amino, alkylamino, dialkylamino, alkanamido, halo, trifluoromethyl, or taken together, methylene dioxy;R.sub.7 is hydrogen or alkyl; andn is 0, 1, 2, 3, or 4;or a pharmaceutically acceptable salt thereof.Type: GrantFiled: January 30, 1995Date of Patent: April 9, 1996Assignee: American Home Products CorporationInventors: Gertrude V. Upton, Albert T. Derivan, Richard L. Rudolph
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Patent number: 5498775Abstract: This invention relates to the use of polyanionic benzylglycosides as smooth muscle cell proliferation inhibitors and as therapeutic compositions for treating diseases and conditions which are characterized by excessive smooth muscle proliferation, such as restenosis. The compounds of this invention are those of formula I ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are, independently, H, SO.sub.3 M, or ##STR2## and each oligosaccharide group contains 1 to 3 sugar groups; M is lithium, sodium, potassium, or ammonium;n is 1 or 2;X is a halogen, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms;Y is carbonyl or sulfonyl;Z is alkyl from 1 to 12 carbon atoms, ##STR3## and X is as defined above; or a pharmaceutically acceptable salt thereof.Type: GrantFiled: November 7, 1994Date of Patent: March 12, 1996Assignee: American Home Products CorporationInventors: Sarah T. A. Novak, Richard M. Soll, John W. Ellingboe, Thomas T. Nguyen
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Patent number: 5498244Abstract: A sanitary or safety guard for a medical device subject to contamination, the medical device having a recess in its external surface, the guard comprising:(a) an elongate, hollow guard body having an internal chamber, an internal surface, an external surface, a first opening, and a second opening, the first and second openings being located at opposite ends of the guard body, the first opening being sufficient to allow at least a portion of the medical device to enter into the internal chamber and the second opening being sufficient to allow a portion of the medical device to extend from the internal chamber through the second opening;(b) a passage extending through the guard body between the internal and external surfaces;(c) a biasing arm connected by hinging means to the guard body;(d) an intrusion tab secured to the biasing arm such that the biasing arm projects the intrusion tab through the passage into the internal chamber of the guard body;(e) locking means secured to the guard body such that the lockiType: GrantFiled: September 24, 1993Date of Patent: March 12, 1996Assignee: American Home Products CorporationInventor: Steven R. Eck
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Patent number: 5484717Abstract: This invention relates to antibiotic 31F508.alpha..sub.1, 31F508.alpha..sub.2, 31F508.beta..sub.1 and 31F508.beta..sub.2, derived from the microorganism Streptomyces viridodiastaticus subsp. "littus" which are useful as an anti-bacterial agent.Type: GrantFiled: May 1, 1995Date of Patent: January 16, 1996Assignee: American Cyanamid CompanyInventor: Joseph A. Zaccardi
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Patent number: 5482940Abstract: There are disclosed the use of the compounds of the formula (I) ##STR1## wherein R.sup.1 is 1-adamantyl, 3-methyl-1-adamantyl, 3-noradamantyl, unsubstituted or substituted-2-indolyl, 3-indolyl, 2-benzofuranyl or 3-benzofuranyl wherein the substituents are selected from lower alkyl, lower alkoxy and halo; R.sup.2 is unsubstituted or substituted phenyl, benzyl, or pyrimidinyl wherein the substituents are selected from lower alkyl, lower alkoxy, trifluoromethyl and halo; R.sup.3 is H or lower alkyl of 1 to 3 carbon atoms; n is the integer 0 or 1; and m is the integer from 2 to 5 and the pharmaceutically acceptable salts thereof.Type: GrantFiled: April 15, 1993Date of Patent: January 9, 1996Assignee: American Home Products CorporationInventors: Magid A.-M. Abou-Gharbia, John P. Yardley, Wayne E. Childers, Jr., John A. Moyer
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Patent number: 5468774Abstract: There are disclosed compounds of the formula: ##STR1## wherein X is O;R.sup.1 and R.sup.2 are each, independently, hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.20 cycloalkyl, phenylloweralkyl, or substituted phenylloweralkyl substituted by halo, lower alkyl, lower alkoxy, halo lower alkyl, amino, monoloweralkylamino, diloweralkylamino or sulfonamido;A is O, S, NR, or a chemical bond;R, if present, is hydrogen or loweralkyl;m is 0-15;n is 3-12;p is 0-15,where m+p=2-15;and the pharmacologically acceptable salts thereof. Also disclosed is a method for treating immunoimmflammatory conditions in mammals which comprises administering to a mammal so afflicted an effective amount of a compound having the formula above wherein X, R.sup.1, R.sup.2, A, R, if present, m and p are as listed above and n=3-12 and m+p=2-15.Type: GrantFiled: March 14, 1995Date of Patent: November 21, 1995Assignee: American Home Products CorporationInventors: Guy A. Schiehser, Craig E. Caufield, Nancie A. Senko, Gregory F. VonBurg
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Patent number: 5436333Abstract: Compounds of the formula: ##STR1## in which R.sup.1 is H, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, amino, bromo, chloro, fluoro, iodo, C.sub.1 -C.sub.3 alkylcarbonyl or trifluoromethyl; R.sup.2 is H, C.sub.1 -C.sub.3 alkyl, C.sub.1 --C.sub.3 alkoxy, bromo, chloro, fluoro, iodo, or C.sub.1 -C.sub.3 alkylcarbonyl; or R.sup.1 and R.sup.2 taken together are methylenedioxy or ethylenedioxy; the structure ##STR2## represents, as described in the specification, an ortho-fused phenyl moiety; an aromatic 5-membered heterocycle containing N, O, or S; or an aromatic 6-membered heterocycle containing N; all of which may be optionally substituted, are produced by reaction of ##STR3## where R.sup.3 is a masked aldehyde or carboxyl group, with 2-nitro-benzyl bromide followed by removal of the mask, reduction and cyclization.Type: GrantFiled: August 8, 1994Date of Patent: July 25, 1995Assignee: American Cyanamid CompanyInventors: Aranapakam M. Venkatesan, Jay D. Albright
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Patent number: 5420153Abstract: There are disclosed compounds of the formula: ##STR1## wherein X is NR;R is hydrogen or lower alkyl;R.sup.1 and R.sup.2 are each, independently, hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.20 cycloalkyl, phenylloweralkyl, or substituted phenylloweralkyl substituted by halo, lower alkyl, lower alkoxy, halo lower alkyl, amino, monoloweralkylamino, diloweralkylamino or sulfonamido;A is O, S, NR, or a chemical bond;m is 0-15;n is 0-20;p is 0-15,where m+p.ltoreq.15;and the pharmacologically acceptable salts thereof, which by virtue of their ability to inhibit PLA.sub.2, are of use as antiinflammatory agents and there is also disclosed a method for the treatment of immunoinflammatory conditions, such as allergy, anaphylaxis, asthma and inflammation in mammals, as well as in the modulation of PAF-mediated biological processes, such as embryonic implantation, thus making the compounds useful as antifertility agents.Type: GrantFiled: September 8, 1994Date of Patent: May 30, 1995Assignee: American Home Products CorporationInventors: Guy A. Schiehser, Craig E. Caufield, Nancie A. Senko, Gregory F. VonBurg
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Patent number: 5387680Abstract: This invention provides C-22 substituted rapamycin derivatives of the following formulas: ##STR1## and pharmaceutically acceptable salts thereof which are useful for inducing immunosuppression and treating transplantation rejection, host vs. graft disease, autoimmune diseases, diseases of inflammation, solid tumors, fungal infections, adult T-cell leukemia/lymphomas and hyperproliferative vascular disorders.Type: GrantFiled: August 10, 1993Date of Patent: February 7, 1995Assignee: American Home Products CorporationInventor: Frances C. Nelson
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Patent number: 5380725Abstract: There are disclosed compounds of the formula (I) ##STR1## wherein R.sup.1 is 1-adamantyl, 3-methyl-1-adamantyl, 3-noradamantyl, unsubstituted or substituted-2-indolyl, 3-indolyl, 2-benzofuranyl and 3-benzofuranyl wherein the substituents are selected from lower alkyl, lower alkoxy and halo; R.sup.2 is unsubstituted or substituted phenyl, benzyl, pyridinyl, pyrimidinyl or pyrazinyl, wherein the substituents are selected from lower alkyl, lower alkoxy, trifluoromethyl and halo; R.sup.3 is H or lower alkyl of 1 to 3 carbon atoms; n is the integer 0 or 1; m is the integer from 2 to 5; and the pharmaceutically acceptable salts thereof.Type: GrantFiled: July 14, 1993Date of Patent: January 10, 1995Assignee: American Home Products CorporationInventors: Magid A. Abou-Gharbia, John P. Yardley, Wayne E. Childers, Jr.
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Patent number: 5366993Abstract: There are disclosed compounds of the formula: ##STR1## wherein X is O, S or NR;R is hydrogen or lower alkyl;R.sup.1 and R.sup.2 are each, independently, hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.20 cycloalkyl, phenylloweralkyl, or substituted phenylloweralkyl substituted by halo, lower alkyl, lower alkoxy, halo lower alkyl, amino, monoloweralkylamino, diloweralkylamino or sulfonamido;A is O, S, NR, or a chemical bond;m is 0-15;n is 0-20;p is 0-15,where m+p.ltoreq.15;and the pharmacologically acceptable salts thereof, which by virtue of their ability to inhibit PLA.sub.2, are of use as antiinflammatory agents and there is also disclosed a method for the treatment of immunoinflammatory conditions, such as allergy, anaphylaxis, asthma and inflammation in mammals, as well as in the modulation of PAF-mediated biological processes, such as embryonic implantation, thus making the compounds useful as antifertility agents.Type: GrantFiled: June 3, 1993Date of Patent: November 22, 1994Assignee: American Home Products CorporationInventors: Guy A. Schiehser, Craig E. Caufield, Nancie A. Senko, Gregory F. VonBurg
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Patent number: 5211931Abstract: The present invention provides a method of removing impurities from a stream of silane, SiH.sub.4. Most notably, the present invention provides a method of removing ethylene from a silane stream by converting the ethylene to ethylsilane in the presence of a molecular sieve and distilling the desired silane from the ethylsilane contaminant.Type: GrantFiled: March 27, 1992Date of Patent: May 18, 1993Assignee: Ethyl CorporationInventors: Robert H. Allen, Douglas M. Richards
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Patent number: 5206004Abstract: Improved molecular sieves and processes for treatment of molecular sieves which permit use for separation of ethylene and silane without attending formation of ethylsilane. Such treatment includes treatment of sieves with silane at an effective temperature, pressure and time.Type: GrantFiled: July 1, 1991Date of Patent: April 27, 1993Assignee: Ethyl CorporationInventor: Won S. Park
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Patent number: 5202099Abstract: An apparatus and process for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminating surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc.Type: GrantFiled: October 26, 1989Date of Patent: April 13, 1993Assignee: Ethyl CorporationInventors: James E. Boone, David W. Owens, Robert E. Farritor, Wesley D. Blank
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Patent number: 5097052Abstract: Novel methods for the preparation of sodium aluminum tetraalkyls have been discovered comprising the reaction of sodium aluminum tri-isobutyl hydride and olefins. The methods avoid the use of sodium aluminum hydrides and permit in one step both the substitution of isobutyl groups and additions at hydride hydrogens to produce sodium aluminum tetraalkyls.Type: GrantFiled: May 3, 1991Date of Patent: March 17, 1992Assignee: Ethyl CorporationInventor: Gunner E. Nelson
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Patent number: 5089646Abstract: Improved methods for producing polysilane compounds using diphosphorous nickel chloride catalysts. Novel bicyclic polysilane compounds, among other compounds, can be produced using these improved methods.Type: GrantFiled: December 5, 1990Date of Patent: February 18, 1992Assignee: Ethyl CorporationInventor: Bruce C. Berris
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Patent number: 5089648Abstract: Improved methods for producing polysilane compounds using tetrakis(triethylphosphine)nickel (O) catalysts.Type: GrantFiled: September 4, 1990Date of Patent: February 18, 1992Assignee: Ethyl CorporationInventor: Bruce C. Berris