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Issued heat shock protein (HSP) patents

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Recently, the European Patent Office issued a decision in favor of Stressgen Biotechnologies in response to a patent challenge by Antigenics regarding use of HSP E7. This decision has no impact on Antigenics’ current or prospective development programs.

Click on the patent numbers below to download each PDF file.

US Patent No. Date Issued Coverage
7,186,515 Mar. 6, 2007 Methods for identifying compounds (including antibodies) that modulate the interaction of HSPs with the HSP receptor, CD91.
7,179,462 Feb. 20, 2007 Methods of treating autoimmune diseases with anti-CD91 antibodies.
7,132,109 Nov. 7, 2006 Method of treating cancer with generic HSP in combination with a cancer vaccine.
6,984,389 Jan. 10, 2006 Method of treating cancer with HSP-peptide complexes in combination with tyrosine kinase inhibitors (like Gleevec).
6,797,480 Sept. 28, 2004 Methods for screening molecules for the ability to modulate heat shock protein receptor activity.
6,610,659 Aug. 26, 2003 Compositions of peptides that are eluted from HSP70 isolated from mammalian tumor cells
6,475,490 Nov. 5, 2002 Methods of promoting healing of skin wounds by administering purified heat shock proteins (HSPs) or HSP-peptide complexes
6,468,540 Oct. 22, 2002 Composition of HSP-peptide complexes isolated from tumors of household pets
6,461,615 Oct. 8, 2002 Treating or preventing infectious diseases by administering HSP-antigen complexes that are made in vitro
6,455,503 Sept. 24, 2002 A composition of peptides that are eluted from HSPs isolated from pathogen-infected cells and a composition of such eluted peptides and an adjuvant
6,455,048 Sept. 24, 2002 Methods of preventing cancer with doses of HSP70 below 10 micrograms
6,451,316 Sept. 17, 2002 Methods of using HSP-peptide complexes to expand antigen-specific T cells in vitro
6,447,781 Sept. 10, 2002 Methods of preventing cancer using HSPs complexed to antigens in vitro
6,447,780 Sept. 10, 2002 Methods of preventing cancer with doses of HSP90 below 50 micrograms
6,436,404 Aug. 20, 2002 Methods of preventing cancer with doses of gp96 below 10 micrograms
6,410,028 June 25, 2002 Methods of eliciting immune response using HSPs complexed to proteins or peptides in vitro
6,410,027 June 25, 2002 Medical applications of HSPs in patients with small tumors
6,410,026 June 25, 2002 Medical applications of HSPs in patients with small tumors
6,406,700 June 18, 2002 Methods of preventing cancer using HSPs
6,403,095 June 11, 2002 Methods of treating cancer with doses of HSP70 below 10 micrograms
6,399,070 June 4, 2002 Methods of eliciting immune response with doses of HSP90 below 50 micrograms
6,399,069 June 4, 2002 Methods of preventing infectious diseases with doses of HSP70 below 10 micrograms
6,391,306 May 21, 2002 Methods of treating infectious diseases with doses of HSP90 below 50 micrograms
6,387,374 May 14, 2002 Methods of treating cancer with doses of HSP90 below 50 micrograms
6,383,494 May 7, 2002 Methods of eliciting immune response with doses of gp96 below 10 micrograms
6,383,493 May 7, 2002 Methods of eliciting immune response with doses of HSP70 below 10 micrograms
6,383,492 May 7, 2002 Methods of treating infectious diseases with doses of gp96 below 10 micrograms
6,383,491 May 7, 2002 Methods of preventing infectious diseases with doses of HSP90 below 50 micrograms
6,379,672 Apr. 30, 2002 Methods of preventing infectious diseases with doses of gp96 below 10 micrograms
6,375,953 Apr. 23, 2002 Methods of treating infectious diseases with doses of HSP70 below 10 micrograms
6,322,790 Nov. 27, 2001 Method of eliciting immune response by administering HSP-antigen complexes in combination with dendritic cells that were previously sensitized with HSP-antigen complexes in vitro.
6,187,312 Feb. 13, 2001 Methods of treating or preventing infectious diseases with low doses of HSP90
6,168,793 Jan. 2, 2001 Methods of eliciting immune response and treating cancer or infectious diseases with HSP70
6,162,436 Dec. 19, 2000 Methods of treating cancer with low doses of HSP90.
6,156,302 Dec. 5, 2000 Methods of preventing and treating infectious diseases with antigen presenting cells sensitized in vitro with HSP-antigen complexes.
6,143,299 Nov. 7, 2000 Methods of treating or preventing infectious diseases with low doses of gp96.
6,139,841 Oct. 31, 2000 Methods of treating or preventing infectious diseases with low doses of HSP70.
6,136,315 Oct. 24, 2000 Methods of treating cancer with low doses of HSP70.
6,048,530 Apr. 11, 2000 Methods of preparing compositions of HSPs complexed to pathogen-derived peptides.
6,030,618 Feb. 29, 2000 Compositions of HSPs and antigenic peptides (from cancers or pathogens) that are complexed in vitro as well as methods of eliciting immune response with the compositions
6,017,544 Jan. 25, 2000 Methods of treating cancer and eliciting an immune response with mammalian HSP-peptide complexes in combination with cytokines. Also covers compositions comprising HSPs and cytokines.
6,017,540 Jan. 25, 2000 Methods of treating cancer with doses of gp96 below 10 micrograms
6,007,821 Dec. 28, 1999 Method of treatment of autoimmune diseases such as diabetes and multiple sclerosis with mammalian HSPs.
5,997,873 Dec. 7 1999 Methods of preparing noncovalent complexes of HSPs and peptides from tumor tissue or from pathogen-infected cells
5,985,270 Nov. 16, 1999 Methods of preventing and treating cancer with antigen-presenting cells sensitized in vitro with HSP-antigen complexes that are purified from individual patients' tumors
5,961,979 Oct. 5, 1999 Nonautologous complexes of HSPs and antigenic peptides produced in vitro as well as methods of treating infectious diseases with HSP-peptide complexes purified from pathogen-infected cells.
5,948,646 Sept. 7, 1999 Methods of producing unlimited quantities of HSP-peptide complexes from small tumor samples
5,935,576 Aug. 10, 1999 Methods of treating cancer with any HSP that is complexed in vitro with a tumor antigen
5,837,251 Nov. 17, 1998 Methods of preventing and treating all types of cancer and methods of eliciting tumor-specific immune response using lower than expected doses of HSPs
5,830,464 Nov. 3, 1998 Methods of preventing and treating cancer with antigen-presenting cells sensitized in vitro with HSP-antigen complexes that are purified from individual patients' tumors.
5,750,119 May 12, 1998 Methods of treating all types of cancer and methods of eliciting tumor-specific immune response using all mammalian HSPs (including HSP70-, HSP90- and gp96-antigen complexes) as well as compositions of tumor-derived HSP-antigen complexes.

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