Patents by Inventor David C. Whritenour
David C. Whritenour 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: 6657065Abstract: The present invention relates to methods of making quinoline amides of Formula I below, which are microsomal triglyceride transfer protein inhibitors and can be used as medicines. The present invention also relates to compounds that are used to make quinoline amides of Formula I and methods of making these compounds.Type: GrantFiled: April 23, 2002Date of Patent: December 2, 2003Assignee: Pfizer IncInventors: Norma J. Tom, David C. Whritenour
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Publication number: 20020161233Abstract: The present invention relates to methods of making quinoline amides of Formula I below, which are microsomal triglyceride transfer protein inhibitors and can be used as medicines.Type: ApplicationFiled: April 23, 2002Publication date: October 31, 2002Inventors: Norma J. Tom, David C. Whritenour
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Patent number: 6417367Abstract: The present invention relates to methods of making quinoline amides of Formula I below, which are microsomal triglyceride transfer protein inhibitors and can be used as medicines. The present invention also relates to compounds that are used to make quinoline amides of Formula I and methods of making these compounds.Type: GrantFiled: August 8, 2001Date of Patent: July 9, 2002Assignee: Pfizer Inc.Inventors: Norma J. Tom, David C. Whritenour
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Publication number: 20020042516Abstract: The present invention relates to methods of making quinoline amides of Formula I below, which are microsomal triglyceride transfer protein inhibitors and can be used as medicines.Type: ApplicationFiled: August 8, 2001Publication date: April 11, 2002Inventors: Norma J. Tom, David C. Whritenour
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Patent number: 6103912Abstract: A novel class of bridged indicator dyes is disclosed which possess absorption in the infrared region of the electromagnetic spectrum. These bridged indicator dyes are useful as light-absorbing, pH-sensitive optical filter agents in diffusion transfer photographic processes adapted to be performed in the presence of ambient light and to diffusion transfer products useful in such processes. These indicator dyes will also find utility in titrations and other analytical techniques and products where pH-sensitive indicator dyes are employed and absorption of infrared is useful.Type: GrantFiled: March 31, 1993Date of Patent: August 15, 2000Assignee: Polaroid CorporationInventors: Charles E. Jandrue, Sr., Marcis M. Kampe, Myron S. Simon, David P. Waller, David C. Whritenour
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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: 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: 5414091Abstract: There are disclosed dye-providing compounds comprising color coupler dyes substituted on the phenylene diamine portion with one or two cyclic 1,3-sulfur-nitrogen groups. The dye-providing compounds are capable of releasing the coupler dye upon cleavage in the presence of silver ions or a soluble silver complex. The dye-providing compounds are useful as image-forming materials in color thermographic, photothermographic and other photographic processes.Type: GrantFiled: May 23, 1994Date of Patent: May 9, 1995Assignee: Polaroid CorporationInventors: Efthimios Chinoporos, Robert H. Pauze, David P. Waller, David C. Whritenour
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Patent number: 5340689Abstract: There are disclosed dye-providing compounds comprising color coupler dyes substituted on the phenylene diamine portion with one or two cyclic 1,3 -sulfur-nitrogen groups. The dye-providing compounds are capable of releasing the coupler dye upon cleavage in the presence of silver ions or a soluble silver complex. The dye-providing compounds are useful as image-forming materials in color thermographic, photothermographic and other photographic processes.Type: GrantFiled: May 6, 1993Date of Patent: August 23, 1994Assignee: Polaroid CorporationInventors: Efthimios Chinoporos, Robert H. Pauze, David P. Waller, David C. Whritenour
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Patent number: 5294375Abstract: Disclosed is a class of bridged phthalides and sulfinate esters which exhibit reversible thermochromism. At room temperature and in the presence of base, these compounds are substantially colorless but upon the application of heat they become colored, reverting to their original colorless or weakly colored state upon cooling. This colorless to colored, temperature-dependent cycle can be repeated many times. These compounds have utility as temperature sensors and as thermal pH indicators.Type: GrantFiled: August 20, 1991Date of Patent: March 15, 1994Assignee: Polaroid CorporationInventors: Marcis M. Kampe, David P. Waller, David C. Whritenour
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Patent number: 5244771Abstract: A novel class of bridged indicator dyes is disclosed which possess absorption in the infrared region of the electromagnetic spectrum. These bridged indicator dyes are useful as light-absorbing, pH-sensitive optical filter agents in diffusion transfer photographic processes adapted to be performed in the presence of ambient light and to diffusion transfer products useful in such processes. These indicator dyes will also find utility in titrations and other analytical techniques and products where pH-sensitive indicator dyes are employed and absorption of infrared is useful.Type: GrantFiled: August 20, 1991Date of Patent: September 14, 1993Assignee: Polaroid CorporationInventors: Charles E. Jandrue, Sr., Marcis M. Kampe, Myron S. Simon, David P. Waller, David C. Whritenour