Patents by Inventor Dwight A. Shamblee

Dwight A. Shamblee 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: 8278375
    Abstract: Mixtures of three types of linear, branched or cyclic phosphates are useful flame retardants, especially for thermoplastic resins or as functional additives in polymer matrices.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: October 2, 2012
    Assignee: Rhodia UK Limited
    Inventors: Vincent Schanen, Dwight Shamblee, Gleb Priimov, Julie Ann Salter
  • Publication number: 20120123025
    Abstract: Mixtures of three types of linear, branched or cyclic phosphates are useful flame retardants, especially for thermoplastic resins or as functional additives in polymer matrices.
    Type: Application
    Filed: July 5, 2006
    Publication date: May 17, 2012
    Applicant: Rhodia UK Limited
    Inventors: Vincent Schanen, Dwight Shamblee, Gleb Priimov, Julie Ann Salter
  • Publication number: 20080103046
    Abstract: A method for making a plant growth regulator includes the step of reacting vinyl chloride with a phosphorous reagent.
    Type: Application
    Filed: August 24, 2007
    Publication date: May 1, 2008
    Inventors: Francine Palmer, James Ellis, James Horn, Eugene Anderson, Dwight Shamblee, Gary Woodward
  • Patent number: 7067076
    Abstract: The invention is directed to a phosphonate composition having flame retardant properties. The phosphonate composition of the invention has the general formula: wherein R1 and R2 are independently C1–C4 alkyl, R3 is H or C1–C4 alkyl, and R4 is linear or branched C9–C22 alkyl, C9–C22 cycloalkyl, C9–C22 aryl or C9–C22 aralkyl and n=0 or 1. The invention is also directed to a method of producing the phosphonate composition having flame retardant properties.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: June 27, 2006
    Assignee: Rhodia Inc.
    Inventors: Shiming Wo, Dwight Shamblee
  • Patent number: 7034177
    Abstract: A process of producing cyanoalkyl tetraalkylphosphordiamidites at least substantially free of amine hydrohalide with improved storage stability.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: April 25, 2006
    Assignee: Rhodia Inc
    Inventors: Dwight Shamblee, Shiming Wo, Bing Wang
  • Publication number: 20050038144
    Abstract: The invention is directed to a phosphonate composition having flame retardant properties. The phosphonate composition of the invention has the general formula: wherein R1 and R2 are independently C1-C4 alkyl, R3 is H or C1-C4 alkyl, and R4 is linear or branched C9-C22 alkyl, C9-C22 cycloalkyl, C9-C22 aryl or C9-C22 aralkyl and n=0 or 1. The invention is also directed to a method of producing the phosphonate composition having flame retardant properties.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 17, 2005
    Inventors: Shiming Wo, Dwight Shamblee
  • Publication number: 20030236233
    Abstract: A process of producing cyanoalkyl tetraalkylphosphordiamidites at least substantially free of amine hydrohalide with improved storage stability.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 25, 2003
    Inventors: Dwight Shamblee, Shiming Wo, Bing Wang
  • Patent number: 5273993
    Abstract: Methods of treating chronic arthritis and osteoporosis which utilize both known and novel compounds which would fall under the general formula:(HO)p--A--[--OS(O).sub.2 NR.sup.1 R.sup.2 ].sub.zwherein A encompasses a wide range of values including but not limited to aryl, loweralkyl, cycloalkyl, and carbohydrates including sucrose and fructose; p is equal to the number of unreacted hydroxy groups contained on the molecule and may be zero; z is the number of --OS(O).sub.2 NR.sup.1 R.sup.2 groups and is always at least one; R.sup.1 and R.sup.2 are selected from hydrogen, loweralkyl, carboxy and the like; a novel process for preparing the compounds is provided wherein an appropriate sulfamic acid aryl ester is reacted with a hydroxy substituted A radical which may or may not contain thereon protected carboxyl, amino or hydroxy substituents, in an aprotic solvent containing a tertiary amine base. Pharmaceutical compositions for the treatment of chronic arthritis and osteoporosis are also provided.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: December 28, 1993
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Young S. Lo, Joseph C. Nolan, William J. Welstead, Jr., David A. Walsh, Dwight A. Shamblee, Ibrahim M. Uwaydah
  • Patent number: 5194446
    Abstract: Methods of treating chronic arthritis and osteoporosis which utilize both known and novel compounds which would fall under the general formula:(HO)p--A--[--OS(O).sub.2 NR.sup.1 R.sup.2 ].sub.zwherein A encompasses a wide range of values including but not limited to aryl, loweralkyl, cycloalkyl, and carbohydrates including sucrose and fructose; p is equal to the number of unreacted hydroxy groups contained on the molecule and may be zero; z is the number of --OS(O).sub.2 NR.sup.1 R.sup.2 groups and is always at least one; R.sup.1 and R.sup.2 are selected from hydrogen, loweralkyl, carboxy and the like; a novel process for preparing the compounds is provided wherein an appropriate sulfamic acid aryl ester is reacted with a hydroxy substituted A radical which may or may not contain thereon protected carboxyl, amino or hydroxy substituents, in an aprotic solvent containing a tertiary amine base. Pharmaceutical compositions for the treatment of chronic arthritis and osteoporosis are also provided.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: March 16, 1993
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Young S. Lo, Joseph C. Nolan, William J. Welstead, Jr., David A. Walsh, Dwight A. Shamblee, Ibrahim M. Uwaydah
  • Patent number: 5192785
    Abstract: Sulfamate esters of the formula(HO).sub.p --A--[OSO.sub.2 NR.sup.1 R.sup.2 ].sub.zwhere A is aryloxyalkyl, p is the number of unreacted hydroxy groups present on the alkyl moiety and may be zero, z is the number of --OS(O).sub.2 NR.sup.1 R.sup.2 groups attached to carbons of the alkyl moiety and is always at least one; R.sup.1 and R.sup.2 are selected from hydrogen, loweralkyl, carboxy, and the like are useful in treating glaucoma.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: March 9, 1993
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Young S. Lo, Joseph C. Nolan, Dwight A. Shamblee
  • Patent number: 4966979
    Abstract: A novel process is described for preparing azetidine and 2 or 3 methyl and ethyl azetidine free bases by reacting primary arylmethylamine having suitable bulk providing substituents attached to the methyl carbon and an appropriate propane derivative having leaving groups in the one and three position in hot organic solvent containing a non-nucleophilic base and an amount of water sufficient to promote azetidine ring formation to give N-protected-azetidines and deprotecting by hydrogenolysis under acidic conditions to give an acid salt of the azetidines and thereafter flashing off vaporized azetidine from a hot, agitated strong base solution or slurry and condensing to give the liquid azetidine free bases.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: October 30, 1990
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Young S. Lo, Dwight A. Shamblee, David H. Causey, Richard P. Mays
  • Patent number: 4870189
    Abstract: A novel process is described for preparing azetidine and 2 or 3 methyl and ethyl azetidine free bases by reacting primary arylmethylamine having suitable bulk providing substituents attached to the methyl carbon and an appropriate propane derivative having leaving groups in the one and three position in hot organic solvent containing a non-nucleophilic base and an amount of water sufficient to promote azetidine ring formation to give N-protected-azetidines and deprotecting by hydrogenolysis under acidic conditions to give an acid salt of the azetidines and thereafter flashing off vaporized azetidine from a hot, agitated strong base solution or slurry and condensing to give the liquid azetidine free bases.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: September 26, 1989
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Young S. Lo, Dwight A. Shamblee, David H. Causey, Richard P. Mays
  • Patent number: 4503073
    Abstract: Novel 2-amino-3-(alkylthiobenzoyl)phenylacetic acids, esters and metal salts have the formula: ##STR1## wherein R is hydrogen or lower alkyl, R.sup.1 is hydrogen, lower alkyl or pharmaceutically acceptable metal cation, R.sup.2 is hydrogen, halogen, lower alkyl or lower alkoxy, Am is primary amino (--NH.sub.2), methylamino or dimethylamino. The compounds have anti-inflammatory activity; have effective analgesic activity, and inhibit blood platelet aggregation.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: March 5, 1985
    Assignee: A. H. Robins Company, Incorporated
    Inventors: David A. Walsh, Dwight A. Shamblee
  • Patent number: 4313949
    Abstract: Novel 2-amino-3-benzoyl-phenylacetamides are provided having the formula: ##STR1## wherein R represents hydrogen or lower alkyl, R.sup.1 and R.sup.2 represent hydrogen, lower alkyl, cycloalkyl, phenyl and phenyl substituted by lower alkyl, lower alkoxy, halogen, nitro and trifluoromethyl, and R.sup.1 and R.sup.2 when taken together with the adjacent nitrogen may form a heterocyclic residue; X represents hydrogen, lower alkyl, lower alkoxy, halogen or trifluoromethyl; Y represents hydrogen, lower alkyl, lower alkoxy, halogen, trifluoromethyl, lower alkylthio, lower alkyloxythio or lower alkyldioxythio; Am is primary amino (--NH.sub.2), methylamino or dimethylamino, and n is 1 to 3 inclusive. The compounds exhibit anti-inflammatory, antipyretic, anti-blood platelet aggregation and analgetic pharmacological activities.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: February 2, 1982
    Assignee: A. H. Robins Company, Inc.
    Inventors: James R. Shanklin, Jr., Dwight A. Shamblee, David A. Walsh
  • Patent number: 4254135
    Abstract: Cis and trans 3-amino-4-hydroxypyrrolidines and derivatives thereof are disclosed having the formula: ##STR1## wherein R.sub.1 is hydrogen, loweralkyl or phenylcarbonyl; R.sub.2 is hydrogen, loweralkyl, lowercycloalkyl, phenyl or phenylloweralkyl; R.sub.3 is hydrogen, loweralkyl, phenylloweralkyl, phenylcarbonyl, diphenylmethyl, 5-yl-10,11-dihydro-5H-dibenzo[a,d]cycloheptene or naphthylcarbonyl; R.sub.4 is hydrogen, loweralkyl, phenylloweralkyl or lowercycloalkyl; phenyl is optionally substituted and acid addition salts thereof. The compounds have antidepressant activity and methods and pharmaceutical compositions for use thereof are disclosed.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: March 3, 1981
    Assignee: A. H. Robins Company, Inc.
    Inventors: David A. Walsh, Dwight A. Shamblee