Patents by Inventor Lester Packer

Lester Packer 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: 6387945
    Abstract: A compound is provided having the formula I: wherein the variables are defined in the specification. Methods of making the compounds, compositions including the compounds and methods of treatment of conditions involving reactive oxygen species are also provided.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: May 14, 2002
    Assignee: The Regents of the University of California
    Inventors: Lester Packer, Oren Tirosh, Chandan K. Sen, Sashwati Roy
  • Publication number: 20010039292
    Abstract: A compound is provided having the formula I: 1
    Type: Application
    Filed: May 9, 2001
    Publication date: November 8, 2001
    Applicant: The Regents Of The University of California, a California corporation
    Inventors: Lester Packer, Oren Tirosh, Chandan K. Sen, Sashwati Roy
  • Patent number: 6284787
    Abstract: The invention relates to the use of R-(+)-&agr;-lipoic acid, R-(−)-dihydrolipoic acid or their metabolites, salts, esters and amides for the synthesis of drugs for the treatment of diabetes mellitus of types I and II, compensated and decompensated insulin resistance and sequelae or late complications of diabetes mellitus, such as cataracts, polyneuropathy, nephropathy, as well as sequelae or late complications of insulin resistance. These drugs mentioned can also be used advantageously in combination with other antidiabetic drugs, particularly with insulin, and/or other additives or stabilizers or adjuvants, such as vitamin B, vitamin C, NADH, NADPH and ubiquinone. The invention furthermore relates to the use of R-(+)-&agr;-lipoic acid, R-(−)-dihydrolipoic acid or their metabolites, as well as their salts, esters and amides for the preparation of drugs for the treatment of diseases with limited function of or a lowered content of the glucose transporters.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: September 4, 2001
    Assignee: Asta Medica Aktiengesellschaft
    Inventors: Klaus Wessel, Harald Borbe, Heinz Ulrich, Helmut Hettche, Hans Bisswanger, Lester Packer, Amira Klip
  • Patent number: 6235772
    Abstract: A compound is provided having the formula I: as defined in the specification. Methods of making the compounds, compositions including the compounds and methods of treatment of conditions involving reactive oxygen species are also provided.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: May 22, 2001
    Assignee: The Regents of the University of California
    Inventors: Lester Packer, Oren Tirosh, Chandan K. Sen, Sashwati Roy
  • Patent number: 6117899
    Abstract: The invention relates to the use of R-(+)-.alpha.-lipoic acid, R-(-)-dihydrolipoic acid or their metabolites, salts, esters and amides for the synthesis of drugs for the treatment of diabetes mellitus of types I and II, compensated and decompensated insulin resistance and sequelae or late complications of diabetes mellitus, such as cataracts, polyneuropathy, nephropathy, as well as sequelae or late complications of insulin resistance. These drugs mentioned can also be used advantageously in combination with other antidiabetic drugs, particularly with insulin, and/or other additives or stabilizers or adjuvants, such as vitamin E, vitamin C, NADH, NADPH and ubiquinone.The invention furthermore relates to the use of R-(+)-.alpha.-lipoic acid, R-(-)-dihydrolipoic acid or their metabolites, as well as their salts, esters and amides for the preparation of drugs for the treatment of diseases with limited function of or a lowered content of the glucose transporters.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: September 12, 2000
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Klaus Wessel, Harald Borbe, Heinz Ulrich, Helmut Hettche, Hans Bisswanger, Lester Packer, Amira Klip
  • Patent number: 6090842
    Abstract: A compound is provided having the formula I: ##STR1## wherein R.sup.1 and R.sup.2 independently denote a methylene, ethylene or unbranched or branched C.sub.3-16 alkylene, alkenylene or alkynylene group which is unsubstituted or substituted with one or more halogen, hydroxyl or amine groups, wherein in the unbranched or branched C.sub.3-16 alkylene, alkenylene or alkynylene group an internal alkylene carbon atom in the carbon backbone thereof can be replaced by an oxygen atom,R.sup.3 and R.sup.4(i) independently denote(a) hydrogen,(b) a methyl, ethyl, vinyl or unbranched or branched C.sub.3-16 alkyl, alkenyl or alkynyl group which is unsubstituted or substituted with one or more halogen, hydroxyl or amine groups, wherein in said unbranched or branched C.sub.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: July 18, 2000
    Assignee: The Regents of the University of California
    Inventors: Lester Packer, Oren Tirosh, Chandan K. Sen, Sashwati Roy
  • Patent number: 5948810
    Abstract: The invention relates to the use of R-(+)-.alpha.-lipoic acid, R-(-)-dihydrolipoic acid or their metabolites, salts, esters and amides for the synthesis of drugs for the treatment of diabetes mellitus of types I and II, compensated and decompensated insulin resistance and sequelae or late complications of diabetes mellitus, such as cataracts, polyneuropathy, nephropathy, as well as sequelae or late complications of insulin resistance.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: September 7, 1999
    Assignee: Asta Medica Aktiengesellschaft
    Inventors: Klaus Wessel, Harald Borbe, Heinz Ulrich, Helmut Hettche, Hans Bisswanger, Lester Packer, Amira Klip
  • Patent number: 5693664
    Abstract: The invention relates to the use of R-(+)-.alpha.-lipoic acid, R-(-)-dihydrolipoic acid or their metabolites, salts, esters and amides for the synthesis of drugs for the treatment of diabetes mellitus of types I and II, compensated and decompensated insulin resistance and sequelae or late complications of diabetes mellitus, such as cataracts, polyneuropathy, nephropathy, as well as sequelae or late complications of insulin resistance. These drugs mentioned can also be used advantageously in combination with other antidiabetic drugs, particularly with insulin, and/or other additives or stabilizers or adjuvants, such as vitamin E, vitamin C, NADH, NADPH and ubiquinone.The invention furthermore relates to the use of R-(+)-.alpha.-lipoic acid, R-(-)-dihydrolipoic acid or their metabolites, as well as their salts, esters and amides for the preparation of drugs for the treatment of diseases with limited function of or a lowered content of the glucose transporters.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: December 2, 1997
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Klaus Wessel, Harald Borbe, Heinz Ulrich, Helmut Hettche, Hans Bisswanger, Lester Packer, Amira Klip
  • Patent number: 4048325
    Abstract: A low toxicity method of inhibiting sickling of sickle erythrocytes which comprises intermixing the erythrocytes with an effective anti-sickling amount of a water-soluble imidoester of the formula RC(=NH)OR' wherein R is an alkyl group of 1 - 8 carbon atoms, particularly 1 - 4 carbon atoms, and R' is an alkyl group of 1 - 4 carbon atoms, specifically methyl or ethyl acetimidate.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: September 13, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Lester Packer, Edwin N. Bymun