Patents Assigned to Procept, Inc.
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Patent number: 6365625Abstract: This invention pertains to the discovery that condensation polymers of an aldehyde and aromatic sulfonic acids and fractions thereof, such as formaldehyde naphthalenesulfonic acid condensation polymers, can abrogate HIV gp120 binding to CD4, as demonstrated in CD4/gp120 binding assays. In addition to gp120 binding inhibition, the compounds have been shown to inhibit HIV-induced syncytia formation and infectivity of CD+ cells. The use of this compound has been shown to be non-cytotoxic and non-inhibitory to antigen induced T lymphocyte proliferation. Based on these findings, these compounds can be used as a therapeutic agent for the treatment of acquired immunodeficiency syndrome (AIDS), as well as AIDS-related complex (ARC), AIDS-related dementia and non-symptomatic HIV infection. The compounds can also be used to treat blood preparations.Type: GrantFiled: September 17, 1999Date of Patent: April 2, 2002Assignee: Procept, Inc.Inventors: Shyam K. Singh, Raymond J. Patch, Peter V. Pallai, Edith A. Neidhardt, Gerard P. Palace, Kevin J. Willis, Theresa M. Sampo, Kevin W. McDonald, Zhan Shi
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Patent number: 6075050Abstract: This invention pertains to the discovery that condensation polymers of an aldehyde and aromatic sulfonic acids and fractions thereof, such as formaldehyde naphthalenesulfonic acid condensation polymers, can abrogate HIV gp120 binding to CD4, as demonstrated in CD4/gp120 binding assays. In addition to gp120 binding inhibition, the compounds have been shown to inhibit HIV-induced syncytia formation and infectivity of CD+ cells. The use of this compound has been shown to be non-cytotoxic and non-inhibitory to antigen induced T lymphocyte proliferation. Based on these findings, these compounds can be used as a therapeutic agent for the treatment of acquired immunodeficiency syndrome (AIDS), as well as AIDS-related complex (ARC), AIDS-related dementia and non-symptomatic HIV infection. The compounds can also be used to treat blood preparations.Type: GrantFiled: June 6, 1995Date of Patent: June 13, 2000Assignee: Procept, Inc.Inventors: Shyam K. Singh, Raymond J. Patch, Peter V. Pallai, Edith A. Neidhardt, Gerard P. Palace, Kevin J. Willis, Theresa M. Sampo, Kevin W. McDonald, Zhan Shi
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Patent number: 5958399Abstract: This invention pertains to the discovery that condensation polymers of an aldehyde and aromatic sulfonic acids and fractions thereof, such as formaldehyde naphthalenesulfonic acid condensation polymers, can prevent pregnancy in an individual.Type: GrantFiled: May 1, 1997Date of Patent: September 28, 1999Assignee: Procept, Inc.Inventors: Andrew J. Sonderfan, Albert T. Profy, Toni Chancellor, Margo McKinlay
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Patent number: 5708022Abstract: Use of ruthenium complexes as immunosuppressive agents to prevent or significantly reduce graft rejection in organ and bone marrow transplantation is described. The ruthenium complexes can also be used as immunosuppressant drugs for T-lymphocyte mediated autoimmune diseases, such as diabetes, and may be useful in alleviating psoriasis and contact dermatitis. The ruthenium complexes can also be used therapeutically in the treatment of hyperproliferative vascular disease.Type: GrantFiled: June 7, 1995Date of Patent: January 13, 1998Assignee: Procept, Inc.Inventors: Cecilia M. Bastos, Timothy D. Ocain
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Patent number: 5677343Abstract: This invention pertains to the discovery that condensation polymers of an aldehyde and aromatic sulfonic acids and fractions thereof, such as formaldehyde naphthalene-sulfonic acid condensation polymers, can abrogate HIV gp120 binding to CD4, as demonstrated in CD4/gp120 binding assays. In addition to gp120 binding inhibition, the compounds have been shown to inhibit HIV-induced syncytia formation and infectivity of CD+ cells. The use of this compound has been shown to be non-cytotoxic and non-inhibitory to antigen induced T lymphocyte proliferation. Based on these findings, these compounds can be used as a therapeutic agent for the treatment of acquired immunodeficiency syndrome (AIDS), as well as AIDS-related complex (ARC), AIDS-related dementia and non-symptomatic HIV infection. The compounds can also be used to treat blood preparations.Type: GrantFiled: June 6, 1995Date of Patent: October 14, 1997Assignee: Procept, Inc.Inventors: Shyam K. Singh, Raymond J. Patch, Peter V. Pallai, Edith A. Neidhardt, Gerard P. Palace, Kevin J. Willis, Theresa M. Sampo, Kevin W. McDonald, Zhan Shi
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Patent number: 5614559Abstract: This invention pertains to the discovery that condensation polymers of an aldehyde and aromatic sulfonic acids and fractions thereof, such as formaldehyde naphthalene-sulfonic acid condensation polymers, can abrogate HIV gp120 binding to CD4, as demonstrated in CD4/gp120 binding assays. In addition to gp120 binding inhibition, the compounds have been shown to inhibit HIV-induced syncytia formation and infectivity of CD+ cells. The use of this compound has been shown to be non-cytotoxic and non-inhibitory to antigen induced T lymphocyte proliferation. Based on these findings, these compounds can be used as a therapeutic agent for the treatment of acquired immunodeficiency syndrome (AIDS), as well as AIDS-related complex (ARC), AIDS-related dementia and non-symptomatic HIV infection. The compounds can also be used to treat blood preparations.Type: GrantFiled: May 19, 1994Date of Patent: March 25, 1997Assignee: Procept Inc.Inventors: Shyam K. Singh, Raymond J. Patch, Peter V. Pallai, Edith A. Neidhardt, Gerard P. Palace, Kevin J. Willis, Theresa M. Sampo, Kevin W. McDonald, Zhan Shi
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Patent number: 5596095Abstract: The present invention is a method of protecting a sulfonic acid functional group in an organic molecule as a substituted or unsubstituted neopentyl sulfonate ester. The method allows the conversion of R--SO.sub.3 --H to R'--SO.sub.3 --H, wherein R and R' are different organic radicals. Also disclosed is a method of increasing the bioavailability of drugs with a sulfonic acid functional group by protecting the sulfonic acid functional group as a substituted neopentyl sulfonate ester which has a masked heteroatom nucleophile. The masked nucleophile can be liberated in vivo, resulting in removal of the neopentyl protecting group and regeneration of the parent drug.Type: GrantFiled: May 12, 1995Date of Patent: January 21, 1997Assignee: Procept, Inc.Inventors: John C. Roberts, Raymond J. Patch
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Patent number: 5512687Abstract: Novel ruthenium complexes for use as immunosuppressive agents to prevent or significantly reduce graft rejection in organ and bone marrow transplantation are described. The ruthenium complexes can also be used as an immunosuppressant drug for T-lymphocyte mediated autoimmune diseases, such as diabetes, and may be useful in alleviating psoriasis and contact dermatitis.Type: GrantFiled: October 28, 1994Date of Patent: April 30, 1996Assignee: Procept, Inc.Inventor: Cecilia M. Bastos
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Patent number: 5489441Abstract: This invention relates to the use of Ruthenium Red as an immunosuppressive agent to prevent or significantly reduce graft rejection in organ and bone marrow transplantation. Ruthenium Red can also be used as an immunosuppressant drug for T lymphocyte mediated autoimmune diseases, such as diabetes. Furthermore, Ruthenium Red may be useful in alleviating psoriasis and contact dermatitis.Type: GrantFiled: August 19, 1993Date of Patent: February 6, 1996Assignee: Procept, Inc.Inventors: Donard S. Dwyer, Kristin Esenther
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Patent number: 5238689Abstract: This invention relates to the use of Ruthenium Red as an immunosuppressive agent to prevent or significantly reduce graft rejection in organ and bone marrow transplantation. Ruthenium Red can also be used as an immunosuppressant drug for T lymphocyte mediated autoimmune diseases. Furthermore, Ruthenium Red may be useful in alleviating psoriasis.Type: GrantFiled: January 7, 1992Date of Patent: August 24, 1993Assignee: Procept, Inc.Inventors: Donard S. Dwyer, Kristin Esenther