Patents by Inventor Narender K. Kalyan
Narender K. Kalyan 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).
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Patent number: 10774117Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: GrantFiled: July 12, 2017Date of Patent: September 15, 2020Assignee: Wyeth LLCInventors: Kathrin Ute Jansen, Annaliesa Sybil Anderson, Robert G. K. Donald, Maninder K. Sidhu, Narender K. Kalyan, Justin Keith Moran, Mark E. Ruppen, Michael James Flint
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Patent number: 9745354Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: GrantFiled: October 31, 2014Date of Patent: August 29, 2017Assignee: Wyeth LLCInventors: Mark E. Ruppen, Justin Keith Moran, Kathrin Ute Jansen, Annaliesa Sybil Anderson, Robert G. K. Donald, Narender K. Kalyan, Maninder K. Sidhu, Michael James Flint
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Patent number: 9187536Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: GrantFiled: July 10, 2015Date of Patent: November 17, 2015Assignee: Wyeth LLCInventors: Annaliesa Sybil Anderson, Maninder K. Sidhu, Robert G. K. Donald, Kathrin Ute Jansen, Narender K. Kalyan, Justin Keith Moran, Mark E. Ruppen, Michael James Flint
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Publication number: 20150307563Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: ApplicationFiled: July 10, 2015Publication date: October 29, 2015Inventors: Annaliesa Sybil Anderson, Maninder K. Sidhu, Robert G. K. Donald, Kathrin Ute Jansen, Narender K. Kalyan, Justin Keith Moran, Mark E. Ruppen, Michael James Flint
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Publication number: 20150125927Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: ApplicationFiled: October 31, 2014Publication date: May 7, 2015Inventors: Mark E. Ruppen, Justin Keith Moran, Kathrin Ute Jansen, Annaliesa Sybil Anderson, Robert G. K. Donald, Narender K. Kalyan, Maninder K. Sidhu, Michael James Flint
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Publication number: 20130244307Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: ApplicationFiled: March 22, 2013Publication date: September 19, 2013Applicant: WYETH LLCInventors: Annaliesa Sybil Anderson, Maninder K. Sidhu, Robert G. K. Donald, Kathrin Ute Jansen, Narender K. Kalyan, Terri L. Mininni, Justin Keith Moran, Mark E. Ruppen, Michael James Flint
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Patent number: 8481692Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: GrantFiled: April 20, 2012Date of Patent: July 9, 2013Assignee: Wyeth LLCInventors: Maninder K. Sidhu, Annaliesa Sybil Anderson, Robert G. K. Donald, Kathrin Ute Jansen, Narender K. Kalyan, Justin Keith Moran, Mark E. Ruppen, Michael James Flint
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Publication number: 20120269841Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: ApplicationFiled: April 20, 2012Publication date: October 25, 2012Applicant: WYETH LLCInventors: Maninder K. Sidhu, Annaliesa Sybil Anderson, Robert G. K. Donald, Kathrin Ute Jansen, Narender K. Kalyan, Terri L. Mininni, Justin Keith Moran, Mark E. Ruppen, Michael James Flint
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Patent number: 5591823Abstract: Chimeric DNA fragments are provided which include a nucleotide sequence substantially the same as that which codes for the HA surface protein of an influenza A virus having five immunodominant antigenic sites, wherein a nucleotide sequence substantially the same as that which codes for a foreign epitope is inserted into the nucleotide sequence of an antigenic site. Corresponding chimeric peptides, expression vectors, and transformed hosts are provided as well. These peptides are useful in providing vaccines against the respective antigens and in test kits to detect the exposure to such antigens. Additionally, these peptides or their corresponding antibodies are useful in methods of treatment and prevention of the manifestations of exposure to these antigens, including immunotherapy.Type: GrantFiled: December 17, 1993Date of Patent: January 7, 1997Assignee: American Home Products CorporationInventors: Paul P. Hung, Shaw-Guang L. Lee, Narender K. Kalyan
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Patent number: 5376547Abstract: Des-epidermal growth factor homologous--plasminogen activators with greatly diminished affinity for liver membranes.Type: GrantFiled: January 29, 1988Date of Patent: December 27, 1994Assignee: American Home Products CorporationInventors: Narender K. Kalyan, Shawguang L. Lee, Paul P. Hung
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Patent number: 5047241Abstract: Tris-Kringle plasminogen activators containing an additional second kringle domain or an additional modified second kringle domain are useful in disrupting blood clots.Type: GrantFiled: December 31, 1987Date of Patent: September 10, 1991Assignee: American Home Products CorporationInventors: Paul P. Hung, Narender K. Kalyan, Shawguang L. Lee
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Patent number: 5045315Abstract: Hybrid, third generation, plasminogen activators containing plural, heterologous polypeptide kringles prepared by recombinant DNA techniques as well as the genes coding for the activators, Vectors containing those genes and a method for using the plasminogen activators as thrombolytic agents, are disclosed.Type: GrantFiled: October 23, 1990Date of Patent: September 3, 1991Assignee: American Home Products CorporationInventors: Paul P. Hung, Narender K. Kalyan, Shaw-guang L. Lee
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Patent number: 4997766Abstract: Hybrid, third generation, plasminogen activators containing plural, heterologous polypeptide kringles prepared by recombinant DNA techniques as well as the genes coding for the activators. Vectors containing those genes and a method for using the plasminogen activators as thrombolytic agents, are disclosed.Type: GrantFiled: November 14, 1989Date of Patent: March 5, 1991Assignee: American Home Products CorporationInventors: Paul P. Hung, Narender K. Kalyan, Shaw-guang L. Lee
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Patent number: 4916071Abstract: Hybrid, third generation, plasminogen activators containing plural, heterologous polypeptide kringles prepared by recombinant DNA techniques as well as the genes coding for the activators, Vectors containing those genes and a method for using the plasminogen activators as thrombolytic agents, are disclosed.Type: GrantFiled: July 11, 1986Date of Patent: April 10, 1990Assignee: American Home Products CorporationInventors: Paul P. Hung, Narender K. Kalyan, Shaw-guang L. Lee
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Patent number: RE48862Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: GrantFiled: April 18, 2019Date of Patent: December 28, 2021Assignee: Wyeth LLCInventors: Maninder K. Sidhu, Annaliesa Sybil Anderson, Robert G. K. Donald, Kathrin Ute Jansen, Narender K. Kalyan, Justin Keith Moran, Mark E. Ruppen, Michael James Flint
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Patent number: RE48863Abstract: In one aspect, the invention relates to an immunogenic composition that includes a mutant Clostridium difficile toxin A and/or a mutant Clostridium difficile toxin B. Each mutant toxin includes a glucosyltransferase domain having at least one mutation and a cysteine protease domain having at least one mutation, relative to the corresponding wild-type C. difficile toxin. The mutant toxins may further include at least one amino acid that is chemically crosslinked. In another aspect, the invention relates to antibodies or binding fragments thereof that binds to said immunogenic compositions. In further aspects, the invention relates to isolated nucleotide sequences that encode any of the foregoing, and methods of use of any of the foregoing compositions.Type: GrantFiled: April 18, 2019Date of Patent: December 28, 2021Assignee: Wyeth LLCInventors: Annaliesa Sybil Anderson, Maninder K. Sidhu, Robert G. K. Donald, Kathrin Ute Jansen, Narender K. Kalyan, Justin Keith Moran, Mark E. Ruppen, Michael James Flint