Patents by Inventor James R. Shanklin

James R. Shanklin 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: 6258761
    Abstract: A composition prepared by reacting (A) an esterified carboxy-containing interpolymer, said interpolymer being derived from at least two monomers, (i) one of said monomers being at least one vinyl aromatic monomer and (ii) the other of said monomers being at least one alpha, beta-unsaturated acylating agent, and having, before esterification, {overscore (M)}n determined by gel permeation chromatography ranging from about 8,000 to about 350,000, wherein from about 80% to about 99% of the carboxylic groups of said interpolymer are esterified, wherein from about 80 to about 100% of the ester groups contain from 8 to about 23 carbon atoms and from 0 to about 20% of the ester groups contain from 2 to 7 carbon atoms, with (B) a hydrocarbyl substituted carboxylic acid or functional derivative thereof wherein the hydrocarbyl group comprises from about 10 to about 400 carbon atoms, and (C) an amine having an average of more than 1 condensable N—H group, in any order or simultaneously, or with the preformed reac
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: July 10, 2001
    Assignee: The Lubrizol Corporation
    Inventors: Richard M. Lange, James R. Shanklin, Jr., Jeffry G. Dietz, Richard Yodice, Naresh C. Mathur
  • Patent number: 6207624
    Abstract: Disclosed is a lubricating composition having a major amount of an oil of lubrication viscosity and a minor amount of (A) a nitrogen containing dispersant with a total base number of from 20 to 160 on an oil-free basis wherein the improvement comprises adding to said dispersant; (B) a sludge preventing/seal protecting additive of at least one aldehyde or epoxide or mixtures thereof.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: March 27, 2001
    Assignee: The Lubrizol Corporation
    Inventors: Carl F. Stachew, William D. Abraham, James A. Supp, James R. Shanklin, Gordon David Lamb
  • Patent number: 6121211
    Abstract: Disclosed is a lubricating composition having a major amount of an oil of lubrication viscosity and a minor amount of(A) at least one thiocarbamate wherein the improvement comprises adding to said thiocarbamate(B) a sludge preventing and seal protecting amount of at least one aldehyde or epoxide or mixtures thereof.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: September 19, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Carl F. Stachew, William D. Abraham, James A. Supp, James R. Shanklin, Gordon David Lamb
  • Patent number: 6071862
    Abstract: A composition, comprising from about 20% to about 80% by weight of a diluent, prepared by reacting a mixture comprising(A) an esterified carboxy-containing interpolymer, said interpolymer being derived from at least two monomers, (i) one of said monomers being at least one of an aliphatic olefin containing from 2 to about 30 carbon atoms and a vinyl aromatic monomer and (ii) the other of said monomers being at least one alpha, beta-unsaturated acylating agent, and having, before esterification, M.sub.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: June 6, 2000
    Assignee: The Lubrizol Corporation
    Inventors: James R. Shanklin, Jr., Naresh C. Mathur
  • Patent number: 6010986
    Abstract: Disclosed is a composition for reducing the copper-lead bearing corrosion of a formulation that includes a major amount of an oil of lubrication viscosity and a minor amount of a corrosion-reducing additive comprising:(A) a dispersant with a total base number of from 20 to 160 on an oil-free basis, with the proviso that the dispersant is substantially boron-free;(B) a metal salt of a phosphorus acid; and(C) a metal overbased composition comprising at least one carboxylate, phenate, or sulfonate wherein the metal is lithium, sodium, potassium, magnesium or calcium, and wherein the improvement comprises(D) a borate ester.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: January 4, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Carl F. Stachew, James R. Shanklin
  • Patent number: 6008165
    Abstract: 1. A composition for reducing the copper-lead bearing corrosion of a formulation that includes a major amount of an oil of lubrication viscosity and a minor amount of a corrosion-reducing additive comprising(A) a borated dispersant with a total base number of from 20 to 160 on an oil-free basis;(B) a metal salt of a phosphorus acid; and(C) a metal overbased composition comprising at least one carboxylate, phenate, or sulfonate wherein the metal is lithium, sodium, potassium, magnesium or calcium, and wherein the improvement comprises(D) a borate ester.The borated ester and borated dispersant provide from 20 to about 800 parts per million (ppm) mass of boron in the composition.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: December 28, 1999
    Assignee: The Lubrizol Corporation
    Inventors: James R. Shanklin, Carl F. Stachew
  • Patent number: 5198449
    Abstract: Novel compounds of the formula below wherein W is azetidine, pyrrolidine or piperidine, Q is a straight chain hydrocarbon radical of 1-4 carbons and may contain a double bond, and ##STR1## Ar is phenyl, pyridinyl or pyrimidinyl, a process for their preparation, and novel intermediates are disclosed. The novel compounds and the pharmaceutical compositions of this invention are useful in the treatment of hypertension, arrhythmias and angina.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: March 30, 1993
    Assignee: A. H. Robins Company Incorporated
    Inventor: James R. Shanklin, Jr.
  • Patent number: 5187189
    Abstract: This invention discloses novel sulfoximines having the formula: ##STR1## where Z is C.sub.1 -C.sub.6 alkylene and Y is alkyl, arylalkyl, acyl, carbamoyl, sulfonyl or alkoxycarbonyl. The invention compounds are useful in the treatment of Class II arrhythmia.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: February 16, 1993
    Assignee: American Home Products Corporation
    Inventors: Mark R. Hellberg, James R. Shanklin, Jr.
  • Patent number: 5140026
    Abstract: Compounds of this invention are represented by the formula: ##STR1## wherein Z is a C.sub.1 -C.sub.6 alkylene group and R is an alkyl or substituted alkyl group. Class III antiarrhythmic activity is determined in vitro using an electrophysiological test where prolongation of the action potential duration is an indication of activity.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: August 18, 1992
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Mark R. Hellberg, James R. Shanklin, Jr.
  • Patent number: 5130309
    Abstract: Methods of treating cardiac arrhythmias and convulsions in warm-blooded animas and pharmaceutical compositions therefor are disclosed. The compounds useful in the methods of treatment and compositions are represented by the formula ##STR1## where n is 0 to 3 and R is H, C.sub.1 -C.sub.4 alkyl or arylalkyl and Ar is phenyl or substituted phenyl.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: July 14, 1992
    Assignee: A. H. Robins Company, Incorporated
    Inventors: James R. Shanklin, Jr., Mark R. Hellberg
  • Patent number: 5070087
    Abstract: A method of treating cardiac dysfunction, the effects of histamine, and gastric secretion excesses with aryl(alkyl and alkylene)-N-[(phenoxy and phenythio)alkyl]aminoheterocyclics corresponding to the formula: ##STR1## wherein Ar is phenyl or substituted phenyl; R is phenyl, substituted phenyl, pyridinyl or cycloalkyl; A is hydrogen, hydroxy, cyano, amido and amino; Q is --CH.sub.2 --, --CH--, or --CHOH--; d and n are zero or one and the dotted lines form double bonds consistent with the valence of carbon; p is zero, one or two; m is one to six inclusive; B is oxygen, nitrogen, sulfur, sulfinyl or sulfonyl; z is zero or one; l is zero or one; W is hydrogen, loweralkyl, halo, nitro, loweralkoxy or hydroxy; X is hydrogen, loweralkyl, halogen, loweralkoxy or hydroxy; Y is --CH(OH)CH.sub.2 OH, --CH(OH)C(O)OH, --C(O)C(O)OH, --C(O)CH.sub.2 OH,--C(O)C(O)OCH.sub.3, --C(O)C(O)OC.sub.2 H.sub.5, --CH.sub.2 C(O)OC.sub.2 H.sub.5, --CH(OH)C(O)OCH.sub.3, --CH(OH)C(O)OC.sub.2 H.sub.5 or --C(O)CH.sub.2 OC(O)CH.sub.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: December 3, 1991
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Lina C. Teng, David A. Walsh, James R. Shanklin, Jr.
  • Patent number: 5051420
    Abstract: Invention compounds of the formula: ##STR1## wherein Z is ##STR2## are novel. Compounds of the above formula have shown antiarrhythmic activity in an electrophysiological assay.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: September 24, 1991
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Mark R. Hellberg, James R. Shanklin, Jr.
  • Patent number: 4895840
    Abstract: Novel N-(Aryl-,aryloxy-,arylthio-,arylsulfinyl-and arylsulfonyl-)alkyl-N,N'-(or N',N')alkylaminoalkyl ureas, thioureas and cyanoguanidines represented by the following formula: ##STR1## wherein Ar is aryl selected from the group consisting of 1- and 2-naphthyl, 2,3-dihydro-1H-inden-4(or 5)-yl,2-furanylmethyl,2-pyridinyl, phenyl and phenyl substituted by 1-3 radicals commonly used in the pharmaceutical art; (X).sub.d is oxygen, thio, sulfinyl, sulfonyl or d is zero; Z and W are each R or-(CH.sub.2).sub.m -NR.sup.1 R.sup.2 wtih the proviso that when Z is R, W is-(CH.sub.2).sub.m -NR.sup.1 R.sup.2 and when Z is-(CH.sub.2).sub.m -NR.sup.1 R.sup.2, W is R; B is carbonyl, thioxomethyl, or cyanoiminomethyl; R, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are selected from the group consisting of hydrogen, loweralkyl, cycloalkyl, phenyl or phenyl-loweralkyl wherein phenyl may be substituted by 1-3 radicals commonly used in the pharmaceutical art; R.sup.1 and R.sup.2, and R.sup.3 and R.sup.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: January 23, 1990
    Assignee: A. H. Robins Company, Incorporated
    Inventor: James R. Shanklin, Jr.
  • Patent number: 4835164
    Abstract: Novel heterocyclicmethanols are disclosed having the formula: ##STR1## wherein Z is pyrrolidinyl, piperidinyl, homopiperidinyl or pyridinyl; R.sup.1 is hydrogen, loweralkyl or carbethoxymethyl;R.sup.2 is hydrogen, loweralkyl, cycloalkyl, phenyl or phenyl-loweralkyl;R.sup.3 is 1 or 2-naphthalenyl, 2,3-dihydroinden-4 or 5-yl, phenyl or phenyl substituted by loweralkyl, loweralkoxy, halogen, trifluoromethyl, phenyl, methylenedioxy, nitro, amino, loweralkylamino, diloweralkylamino, loweracylamino;the 1-position of 2-pyrrolidinyl, 2-piperidinyl or 2-homopiperidinyl may be substituted by an R.sup.4 loweralkyl group, or R.sup.1 may form methylene or --CH.sub.2 -C(O)-bridges with R.sup.4 ;the pharmaceutically acceptable salts and diastereomers thereof, which compounds have antiarrhythmic and/or hypotensive activity in animals.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: May 30, 1989
    Assignee: A. H. Robins Company, Incorporated
    Inventors: James R. Shanklin, Jr., Christopher P. Johnson, III
  • Patent number: 4812451
    Abstract: Novel 1-[(aminoalkyl and aminoalkylamino)carbonyl and thiocarbonyl-.alpha.,.alpha.-diaryl-pyrrolidine, piperidine and homopiperidineacetamides and acetonitriles having the formula: ##STR1## wherein; n is zero, one or two;X is oxygen or sulfur;Z is ##STR2## 10 or --(CH.sub.2); p is 0 to 5 inclusive with the proviso that when Z is ##STR3## p is at least one; Y is aminocarbonyl or cyano;Ar.sup.1 and Ar.sup.2 are 2, 3 or 4-pyrido, phenyl or substituted phenyl;R is hydrogen or loweralkyl;R.sup.1, R.sup.2 and R.sup.3 are hydrogen, cycloalkyl, loweralkyl, phenyl, substituted phenyl, phenylloweralkyl, and R.sup.2 and R.sup.3 taken with the adjacent nitrogen may form a heterocyclic residue, and diastereoisomers when possible and pharmaceutical salts; and the method and pharmaceutical compositions for treating cardiac arrhythmias therewith are disclosed.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: March 14, 1989
    Assignee: A. H. Robins Company, Incorporated
    Inventors: James R. Shanklin, Jr., James M. Wilkinson, II
  • Patent number: 4812452
    Abstract: Novel 1-[(aminoalkyl and aminoalkylamino)carbonyl and thiocarbonyl]-.alpha.,.alpha.-diaryl-pyrrolidine, piperidine and homopiperidineacetamides and acetonitriles having the formula: ##STR1## wherein; n is zero, one or two;X is oxygen or sulfur;Z is ##STR2## or --(CH.sub.2); p is 0 to 5 inclusive with the proviso that when Z is ##STR3## p is at least one; Y is aminocarbonyl or cyano;Ar.sup.1 and Ar.sup.2 are 2, 3 or 4-pyrido, phenyl or substituted phenyl;R is hydrogen or loweralkyl;R.sup.1, R.sup.2 and R.sup.3 are hydrogen, cycloalkyl, loweralkyl, phenyl, substituted phenyl, phenylloweralkyl, and R.sup.2 and R.sup.3 taken with the adjacent nitrogen may form a heterocyclic residue, and diastereoisomers when possible and pharmaceutical salts; and the method and pharmaceutical compositions for treating cardiac arrhythmias therewith are disclosed.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: March 14, 1989
    Assignee: A. H. Robins Company, Incorporated
    Inventors: James R. Shanklin, Jr., James M. Wilkinson, II
  • Patent number: 4810703
    Abstract: Novel 1-[(aminoalkyl and aminoalkylamino)carbonyl and thiocarbonyl-.alpha.,.alpha.-diaryl-pyrrolidine, piperidine and homopiperidineacetamides and acetonitriles having the formula: ##STR1## wherein; n is zero, one or two;X is oxygen or sulfur;Z is ##STR2## or --(CH.sub.2); p is 0 to 5 inclusive with the proviso that when Z is ##STR3## p is at least one; Y is aminocarbonyl or cyano;Ar.sup.1 and Ar.sup.2 are 2, 3 or 4-pyrido, phenyl or substituted phenyl;R is hydrogen or loweralkyl;R.sup.1, R.sup.2 and R.sup.3 are hydrogen, cycloalkyl, loweralkyl, phenyl, substituted phenyl, phenylloweralkyl, and R.sup.2 and R.sup.3 taken with the adjacent nitrogen may form a heterocyclic residue, and diastereoisomers when possible and pharmaceutical salts; and the method and pharmaceutical compositions for treating cardiac arrhythmias therewith are disclosed.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: March 7, 1989
    Assignee: A. H. Robins Company, Incorporated
    Inventors: James R. Shanklin, Jr., James M. Wilkinson, II
  • Patent number: 4724235
    Abstract: N-(Arylthioalkyl)-N'-(aminoalkyl)ureas and thioureas and oxidation derivatives having the formula ##STR1## wherein B is thio, sulfinyl or sulfonyl; R.sup.1 and R.sup.2 are hydrogen, loweralkyl, cycloalkyl, 2-furanyl, phenyl, substituted phenyl or phenyl-loweralkyl and R.sup.3 and R.sup.4 are hydrogen, loweralkyl, phenyl or phenyl-loweralkyl wherein phenyl is optionally substituted, or R.sup.3 and R.sup.4 taken with the adjacent nitrogen form a heterocyclic residue. The compounds are useful in the treatment of cardiac arrhythmia.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: February 9, 1988
    Assignee: A. H. Robins Company, Incorporated
    Inventors: James R. Shanklin, Jr., Christopher P. Johnson, III
  • Patent number: 4642348
    Abstract: Novel pyrrolidine, piperidine and homopiperidinecarboxamide and thiocarboxamide compounds having the formula: ##STR1## wherein X is --S--, --S(O)-- or --S(O).sub.2 --; A is a loweralkalene chain and A.sup.1 and A.sup.2 are alkalene chains when p and d are one; R, R.sup.1 and R.sup.2 are hydrogen, loweralkyl, phenyl cycloalkyl or phenylalkyl and R.sup.1 and R.sup.2 may form a heterocyclic residue with the adjacent nitrogen atom; Q is a selected aromatic radical, and the pharmaceutically acceptable acid addition salts useful as cardiac antiarrhythmia agents are disclosed.Novel chemical intermediates, unsubstituted on pyrrolidine, piperidine and homopiperidine nitrogen but with --(A.sup.2).sub.p --X--(A.sup.2).sub.d --Q side chain are also disclosed.
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: February 10, 1987
    Assignee: A. H. Robins Company, Incorporated
    Inventor: James R. Shanklin, Jr.
  • Patent number: 4597902
    Abstract: N-(arylthioalkyl)-N'-(aminoalkyl)ureas and thioureas and oxidation derivatives having the formula ##STR1## wherein B is thio, sulfinyl or sulfonyl; R.sup.1 and R.sup.2 are hydrogen, loweralkyl, cycloalkyl, 2-furanyl, phenyl, substituted phenyl or phenyl-loweralkyl and R.sup.3 and R.sup.4 are hydrogen, loweralkyl, phenyl or phenyl-loweralkyl wherein phenyl is optionally substituted, or R.sup.3 and R.sup.4 taken with the adjacent nitrogen form a heterocyclic residue.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: July 1, 1986
    Assignee: A. H. Robins Company, Incorporated
    Inventors: James R. Shanklin, Jr., Christopher P. Johnson, III