Patents by Inventor Peter Viski
Peter Viski 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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Publication number: 20040224928Abstract: The present invention pertains, at least in part, to novel 7-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.Type: ApplicationFiled: May 24, 2004Publication date: November 11, 2004Applicants: Trustees of Tufts College, Paratek Pharmaceuticals, Inc.Inventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Ismail, Todd Bowser, Beena Bhatia, David Messersmith, Laura McIntyre, Darrell Koza, Glen Rennie, Paul Sheahan, Paul Hawkins, Atul Verma, Tadeusz Warchol, Upul Bandarage
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Publication number: 20040214801Abstract: The present invention pertains, at least in part, to novel 9- substituted minocycline compounds. These minocycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.Type: ApplicationFiled: May 4, 2004Publication date: October 28, 2004Applicants: Paratek Pharmaceuticals, Inc., Trustees of Tufts CollegeInventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Ismail, Todd Bowser, Jimmy Dumornay, Glen Rennie, Gui Liu, Darrell Koza, Paul Sheahan, Karen Stapleton, Paul Hawkins, Beena Bhatia, Atul K. Verma, Laura McIntyre, Tadeusz Warchol, David Messersmith
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Publication number: 20040138183Abstract: The present invention pertains to novel 7,9-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.Type: ApplicationFiled: December 16, 2003Publication date: July 15, 2004Applicant: Paratek Pharmaceuticals, Inc.Inventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Y. Ismail, Todd Bowser, Laura McIntyre, Beena Bhatia, Paul Hawkins, Laxma Reddy, Karen Stapleton, Tadeusz Warchol, Paul Sheahan
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Patent number: 6683068Abstract: The present invention pertains to novel 7,9-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.Type: GrantFiled: June 29, 2001Date of Patent: January 27, 2004Assignee: Paratek Pharmaceuticals, Inc.Inventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Ismail, Todd Bowser, Laura McIntyre, Beena Bhatia, Paul Hawkins, Laxma Reddy, Karen Stapleton, Tad Warchol, Paul Sheahan
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Publication number: 20030125348Abstract: The present invention pertains, at least in part, to novel 9-substituted minocycline compounds. These minocycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.Type: ApplicationFiled: June 29, 2001Publication date: July 3, 2003Inventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Ismail, Todd Bowser, Jimmy Dumornay, Glen Rennie, Gui Liu, Darrell Koza, Paul Sheahan, Karen Stapleton, Paul Hawkins, Beena Bhatia, Atul K. Verma, Laura McIntyre, Tadeusz Warchol, David Messersmith
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Publication number: 20030055025Abstract: The present invention pertains, at least in part, to novel 7-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.Type: ApplicationFiled: June 29, 2001Publication date: March 20, 2003Inventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Ismail, Todd Bowser, Beena Bhatia, David Messersmith, Laura McIntyre, Darrell Koza, Glen Rennie, Paul Sheahan, Paul Hawkins, Atul Verma, Tadeusz Warchol, Upul Bandarage
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Publication number: 20020193354Abstract: The present invention pertains to novel 7,9-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.Type: ApplicationFiled: June 29, 2001Publication date: December 19, 2002Inventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Ismail, Todd Bowser, Laura McIntyre, Beena Bhatia, Paul Hawkins, Laxma Reddy, Karen Stapleton, Tad Warchol, Paul Sheahan
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Patent number: 5811530Abstract: There are described image-recording materials which include an image dye-providing compound comprising a novel naphthol azo cyan dye having a 3-aminobenzoisothiazole moiety. The image dye-providing compound includes a diffusion control moiety such as a hydroquinonyl developer group, a precursor thereof or a thiazolidine moiety and, may be diffusible or nondiffusible as a function of the diffusion control moiety.Image-recording materials according to the invention including those which contain high potential developers such as aminoreductone allow sufficient cyan chromophore to diffuse to the image-receiving layer to provide an acceptable photograph and result in no appreciable reduction of the 3-aminobenzoisothiazole moiety of the novel naphthol azo cyan dye.Type: GrantFiled: August 20, 1997Date of Patent: September 22, 1998Assignee: Polaroid CorporationInventors: Michael J. Arnost, Peter Viski, David P. Waller, David C. Whritenour
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Patent number: 5717079Abstract: There are described color-providing compounds having at least two cyclic 1,3-sulfur-nitrogen moieties and one complete dye or dye intermediate. The color-providing compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a complete dye or dye intermediate in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The color-providing compounds are useful as image-forming materials in color photographic, photothermographic, thermographic, and other processes.Type: GrantFiled: March 10, 1997Date of Patent: February 10, 1998Assignee: Polaroid CorporationInventors: Peter Viski, David P. Waller
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Patent number: 5716754Abstract: There are described image-recording materials which include an image dye-providing compound comprising a novel naphthol azo cyan dye having a 3-aminobenzoisothiazole moiety. The image dye-providing compound includes a diffusion control moiety such as a hydroquinonyl developer group, a precursor thereof or a thiazolidine moiety and, may be diffusible or nondiffusible as a function of the diffusion control moiety.Image-recording materials according to the invention including those which contain high potential developers such as aminoreductone allow sufficient cyan chromophore to diffuse to the image-receiving layer to provide an acceptable photograph and result in no appreciable reduction of the 3-aminobenzoisothiazole moiety of the novel naphthol azo cyan dye.Type: GrantFiled: September 18, 1996Date of Patent: February 10, 1998Assignee: Polaroid CorporationInventors: Michael J. Arnost, Peter Viski, David P. Waller, David C. Whritenour
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Patent number: 5691458Abstract: There are described compounds which are represented by the formula ##STR1## The compounds are useful as dyes, and as intermediates and dye moieties in the preparation of compounds, which are particularly useful in imaging applications, such as, for example, diffusion transfer photographic systems.Type: GrantFiled: September 18, 1996Date of Patent: November 25, 1997Assignee: Polaroid CorporationInventors: Michael J. Arnost, Peter Viski, David P. Waller, David C. Whritenour
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Patent number: 5674986Abstract: There are described heat-developable photosensitive image-recording materials which include a compound having at least one cyclic 1,3-sulfur-oxygen moiety. The compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a reagent in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The reagent includes a photographically useful group such as a complete dye or dye intermediate.Type: GrantFiled: May 13, 1996Date of Patent: October 7, 1997Assignee: Polaroid CorporationInventors: Peter Viski, David P. Waller
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Patent number: 5667933Abstract: There are described heat-developable photosensitive image-recording elements which have an alkali-generating system incorporated therein. In the alkali-generating system, a slightly water-soluble metal compound is reacted with a salt of 2-hydroxy-pyridine-N-oxide, or its derivatives, in the presence of a fluid such as water, to form an insoluble precipitate and the alkali required for silver image development during processing. The image-recording materials are useful as image-forming materials in thermographic and photothermographic processes.Type: GrantFiled: November 20, 1996Date of Patent: September 16, 1997Assignee: Polaroid CorporationInventors: Gary E. Cargill, Edward C. Taylor, Peter Viski, Christopher E. R. Orvig
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Patent number: 5658705Abstract: There are described color-providing compounds having at least two cyclic 1,3-sulfur-nitrogen moieties and one complete dye or dye intermediate. The color-providing compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a complete dye or dye intermediate in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The color-providing compounds are useful as image-forming materials in color photographic, photothermographic, thermographic, and other processes.Type: GrantFiled: November 20, 1996Date of Patent: August 19, 1997Assignee: Polaroid CorporationInventors: Peter Viski, David P. Waller
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Patent number: 5569574Abstract: There are described heat-developable photosensitive image-recording materials which include a compound having at least one cyclic 1,3-sulfur-oxygen moiety. The compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a reagent in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The reagent includes a photographically useful group such as a complete dye or dye intermediate.Type: GrantFiled: November 13, 1995Date of Patent: October 29, 1996Assignee: Polaroid CorporationInventors: Peter Viski, David P. Waller
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Patent number: 5436108Abstract: A thermographic dye transfer image-recording material is provided wherein a particular silver salt complex is employed as a source of silver ions, made available upon imagewise heating, to cleave a dye-providing material to provide a diffusible dye in an imagewise pattern corresponding to said imagewise heating. The silver salt complexes have improved solubility in the system providing for enhanced transferred image density.Type: GrantFiled: June 14, 1994Date of Patent: July 25, 1995Assignee: Polaroid CorporationInventors: James R. Freedman, Marcis M. Kampe, Peter Viski, Kent M. Young
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Patent number: 4613461Abstract: The invention relates to a new process for preparing known thiolcarbamate esters of the general formula (I) ##STR1## wherein R.sup.1 and R.sup.2 stand independently for hydrogen or a straight or branched chain alkyl group containing 1 to 6 carbon atoms or an alkenyl group containing 2 to 6 atoms, or an alkyl group containing 1 to 6 or an alkenyl group containing 2 to 6 carbon atoms and mono- or polysubstituted by halogen, oxygen, sulphur and/or nitrogen; orR.sup.1 and R.sup.2 together may represent an optionally substituted .alpha.,.omega.-alkylene group containing 4 to 6 carbon atoms;R.sup.3 and R.sup.4 stand independently for hydrogen or an alkyl group containing 1 to 4 carbon atoms and optionally substituted by halogen or by a group containing oxygen, sulphur and/or nitrogen; andR.sup.5 and R.sup.6 both stand for hydrogen; orR.sup.5 and R.sup.6 together may represent a chemical bond.Type: GrantFiled: December 31, 1984Date of Patent: September 23, 1986Assignees: MTA Kozponti Kemiai Kutato Intezet, Borsodi Vegyi KombinatInventors: Peter Viski, Laszlo Simandi, Ferenc Nagy, Gabor Besenyei, Gyorgy Paszthy, Gyula Pazmandi, Istvan Szita, Gyula Szilagyi, Istvan Toth, Ilona Szigeti nee Kiss