Patents by Inventor Kenneth S. Kang
Kenneth S. Kang 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: 4535153Abstract: The new heteropolysaccharide S-88, prepared by fermentation of an unnamed Pseudomonas species, ATCC 31554, has valuable properties as a thickening, suspending and stabilizing agent in aqueous systems. It is especially useful in formulating oil well drilling fluids and muds. Its chemical composition is 3.2-7% acyl groups, 11.8-18.7% glucuronic acid; and the neutral sugars mannose, glucose, and rhamnose in the approximate molar ratio 1:2:2.Type: GrantFiled: March 8, 1984Date of Patent: August 13, 1985Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder
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Patent number: 4385123Abstract: Deacetylated Polysaccharide S-60, prepared by deacetylating the polysaccharide S-60 produced by fermentation of Pseudomonas elodea, ATCC 31461, has valuable properties in both the clarified and non-clarified form, and is useful as an agar substitute or a shapeable room deodorant.The non-clarified deacetylated gum contains about 17% protein and principally carbohydrate, which comprises glucuronic acid (.about.13% based on wt. gum) and the neutral sugars rhamnose and glucose in the approximate molar ratio 3:2.The clarified, deacetylated gum contains mostly carbohydrate and no more than about 2% protein.Type: GrantFiled: October 13, 1981Date of Patent: May 24, 1983Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder, George T. Colegrove
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Patent number: 4377636Abstract: A novel polysaccharide S-60 is disclosed composed of principally carbohydrate, 10-15% protein, and 3-4.5% acetyl groups as the O-glycosidically linked ester. The carbohydrate portion contains about 11% glucuronic acid (based on wt. gum) and the neutral sugars rhamnose and glucose, the latter having an approximate molar ratio of 3 to 2. This polysaccharide is produced by a new Pseudomonas species, P. elodea, in a suitable fermentation medium.Type: GrantFiled: October 13, 1981Date of Patent: March 22, 1983Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder
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Patent number: 4350769Abstract: A novel polysaccharide S-53, having a composition of 18-19% uronic acid, 4.8% pyruvate, and 7% acetyl as the O-glycosidically linked ester; and the remainder neutral sugar, 51% glucose and 49% fucose. This polysaccharide is produced by the strain of Klebsiella pneumoniae, ATCC No. 31488 growing in a suitable fermentation medium.Type: GrantFiled: July 13, 1981Date of Patent: September 21, 1982Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder
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Patent number: 4342866Abstract: The new heteropolysaccharide S-130, prepared by fermentation of an unnamed Alcaligenes species, ATCC 31555 has valuable properties as a thickening, suspending and stabilizing agent in aqueous systems. It is especially useful in formulating oil well drilling fluids and muds. Its chemical composition is 2.8-7.5% acyl groups, 11.6-14.9% glucuronic acid; and the neutral sugars mannose, glucose and rhamnose, in the approximate molar ratio 1:2:2.Type: GrantFiled: April 23, 1981Date of Patent: August 3, 1982Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder
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Patent number: 4326052Abstract: Deacetylated Polysaccharide S-60, prepared by deacetylating the polysaccharide S-60 produced by fermentation of Pseudomonas elodea, ATCC 31461, has valuable properties in both the clarified and non-clarified form, and is useful as an agar substitute or a shapeable room deodorant.The non-clarified deacetylated gum contains about 17% protein and principally carbohydrate, which comprises glucuronic acid (.about.13% based on wt. gum) and the neutral sugars rhamnose and glucose in the approximate molar ratio 3:2.The clarified, deacetylated gum contains mostly carbohydrate and no more than about 2% protein.Type: GrantFiled: August 14, 1980Date of Patent: April 20, 1982Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Colegrove, George T. Veeder
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Patent number: 4326053Abstract: A novel polysaccharide S-60 is disclosed composed of principally carbohydrate, 10-15% protein, and 3-4.5% acetyl groups as the O-glycosidically linked ester. The carbohydrate portion contains about 11% glucuronic acid (based on wt. gum) and the neutral sugars rhamnose and glucose, the latter having an approximate molar ratio of 3 to 2. This polysaccharide is produced by a new Pseudomonas species, P. elodea, in a suitable fermentation medium.Type: GrantFiled: August 14, 1980Date of Patent: April 20, 1982Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder
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Patent number: 4311795Abstract: A novel polysaccharide S-53, having a composition of 18-19% uronic acid, 4.8% pyruvate, and 7% acetyl as the O-glycosidically linked ester; and the remainder neutral sugar, 51% glucose and 49% fucose. This polysaccharide is produced by the strain of Klebsiella pneumoniae, ATCC No. 31488 growing in a suitable fermentation medium.Type: GrantFiled: November 24, 1980Date of Patent: January 19, 1982Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder
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Patent number: 4304906Abstract: The new heteropolysaccharide S-84, prepared by fermentation of an unnamed Pseudomonas species, ATCC 31562 has valuable properties as a thickening, suspending and stabilizing agent in aqueous systems. It is especially useful in formulating explosive gels. Its chemical composition is within the following weight ranges of sugars: 8-15% glucuronic acid; 40-50% glucose; 35-45% mannose; 5-15% rhamnose; and 3-9% arabinose; it also contains 1-5% acetyl and 2-7% pyruvate groups.Type: GrantFiled: September 19, 1979Date of Patent: December 8, 1981Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder
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Patent number: 4298691Abstract: A process for producing heteropolysaccharide S-156 by bacterial fermentation of an organism deposited with the American Type Culture Collection under Accession No. ATCC 31646.Type: GrantFiled: September 5, 1980Date of Patent: November 3, 1981Assignee: Merck & Co., Inc.Inventors: George T. Veeder, Kenneth S. Kang
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Patent number: 4291156Abstract: A novel polysaccharide S-53, having a composition of 18-19% uronic acid, 4.8% pyruvate, and 7% acetyl as the O-glycosidically linked ester; and the remainder neutral sugar, 51% glucose and 49% fucose. This polysaccharide is produced by the strain of Klebsiella pneumoniae, ATCC No. 31488 growing in a suitable fermentation medium.Type: GrantFiled: February 28, 1979Date of Patent: September 22, 1981Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder
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Patent number: 4269939Abstract: A process for producing heteropolysaccharide S-119 by bacterial fermentation of an organism deposited with the American Type Culture Collection under Accession No. ATCC 31643.Type: GrantFiled: June 20, 1980Date of Patent: May 26, 1981Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder, Peter J. Mirrasoul
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Patent number: 4247639Abstract: A high-viscosity heteropolysaccharide composed of 33% mannose, 29% glucose, 21% galactose and 17% glucuronic acid, and containing 5.7% acetyl and 4.9% pyruvate.Type: GrantFiled: September 11, 1979Date of Patent: January 27, 1981Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder, III
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Patent number: 4211774Abstract: A high-viscosity heteropolysaccharide composed of 33% mannose, 29% glucose, 21% galactose and 17% glucuronic acid, and containing 5.7% acetyl and 4.9% pyruvate.Type: GrantFiled: March 23, 1978Date of Patent: July 8, 1980Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder, III
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Patent number: 4186025Abstract: A process for producing a heteropolysaccharide by a bacterial fermentation procedure in which a species of bacteria or a mutant thereof is incubated in a fermentation medium which contains a carbon source, preferably a hydrolyxed starch, a source of magnesium ions, a source of phosphorous, a source of nitrogen and water with the incubation taking place at a temperature of about 28.degree. to about 35.degree. C.Type: GrantFiled: December 27, 1977Date of Patent: January 29, 1980Assignee: Merck & Co., Inc.Inventors: Kenneth S. Kang, George T. Veeder, III, Danny D. Richey