Patents by Inventor Peter L. Keeling
Peter L. Keeling 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: 8030540Abstract: The invention provides transgenic corn seed, which expresses a gene encoding a double mutant of the E. coli glgC gene in endosperm plastids, wherein the mutant protein has a proline to aspartic acid substitution at amino acid 295 and a glutamic acid to lysine substitution at amino acid 296. The transgenic corn seed of the invention is characterized by enhanced levels of a number of amino acids and oil, when compared to isogenic corn seed, which does not express the transgene in an endosperm plastid. However, the amount of starch in the transgenic corn seed of the invention is decreased or unchanged when compared to the amount of starch in the isogenic control corn seed.Type: GrantFiled: April 21, 2005Date of Patent: October 4, 2011Assignee: BASF Plant Science GmbHInventors: Hanping Guan, Deborah Wetterberg, Angela L. McKean, Peter L. Keeling
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Publication number: 20100143532Abstract: The present invention provides grain, seed, feed made from the grain or seed, petfood made from the grain, and food products made from the grain. The grain may be maize grain with the following characteristics: oil burdened, elevated protein content, and low phytate levels. The combination of oil burdened, protein laden, decreased phytate characteristics in grain makes a grain that provides more calories, protein and phosphorus and other nutrients to the feeding animal. Pet foods, and animal feeds and corn food products made of the present invention will provide increased nutrition because of the increased bioavailability of the components of the grain.Type: ApplicationFiled: December 4, 2009Publication date: June 10, 2010Applicant: BASF Plant Science Company GmbHInventors: Ming-Tang Chang, Peter L. Keeling, Edward P. Wilhelm, Jerry C. Weigel
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Patent number: 7652203Abstract: The present invention provides grain, seed, feed made from the grain or seed, pet food made from the grain, and food products made from the grain. The grain may be maize grain with the following characteristics: oil burdened, elevated protein content, and low phytate levels. The combination of oil burdened, protein laden, and decreased phytate characteristics in grain makes a grain that provides more calories, protein and phosphorus and other nutrients to the feeding animal. Pet foods, and animal feeds and corn food products made of the present invention will provide increased nutrition because of the increased bioavailability of the components of the grain.Type: GrantFiled: June 13, 2005Date of Patent: January 26, 2010Assignee: BASF Plant Science GmbHInventors: Ming-Tang Chang, Peter L. Keeling, Edward P. Wilhelm, Jerry C. Weigel
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Patent number: 7169982Abstract: This invention relates to a method of producing a starch with unique functionality in plants through mutableness, and/or using biotechnology, and/or breeding practices. Further the invention relates to the starch from maize plants and/or other plants which produce starch storing organs which contain low amylose starch which has an amylose content between 1.5% and 15% and preferably between 1.5% and 10% and most preferably 1.5 and 8%. The invention includes starch extracted from such grain due to at least one mutation induced by ethyl methanesulfonate. Additionally, the invention uses a biotechnology approach involving controlling the activity of the granule bound starch synthase enzyme in starch storing organ. The invention includes the use of the starch for its cooking, paste, and gel properties.Type: GrantFiled: October 17, 2002Date of Patent: January 30, 2007Assignee: Basf Plant Science GmbHInventors: Jeffrey D. Klucinec, Peter L. Keeling, Padma Commuri, Ming-Tang Chang
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Patent number: 7087261Abstract: The present invention provides grain, seed, feed made from the grain or seed, pet food made from the grain, and food products made from the grain. The grain may be maize grain with the following characteristics: oil burdened, elevated protein content, and low phytate levels. The combination of oil burdened, protein laden, decreased phytate characteristics in grain makes a grain that provides more calories, protein and phosphorus and other nutrients to the feeding animal. Pet foods, and animal feeds and corn food products made of the present invention will provide increased nutrition because of the increased bioavailability of the components of the grain.Type: GrantFiled: July 2, 2004Date of Patent: August 8, 2006Assignee: BASF Plant Science L.L.C.Inventors: Ming-Tang Chang, Peter L. Keeling, Edward P. Wilheim, Jerry C. Weigel
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Patent number: 6774288Abstract: The present invention provides grain, seed, feed made from the grain or seed, petfood made from the grain, and food products made from the grain. The grain may be maize grain with the following characteristics: oil burdened, elevated protein content, and low phytate levels. The combination of oil burdened, protein laden, decreased phytate characteristics in grain makes a grain that provides more calories, protein and phosphorus and other nutrients to the feeding animal. Pet foods, and animal feds and corn food products made of the present invention will provide increased nutrition because of the increased bioavailability of the components of the grain.Type: GrantFiled: January 6, 2000Date of Patent: August 10, 2004Assignee: BASF Plant Science L.L.C.Inventors: Ming-Tang Chang, Peter L. Keeling, Edward P. Wilhelm, Jerry C. Weigel
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Publication number: 20040107461Abstract: The invention relates to a method for changing the glucan chain lengths using fusion protein domains of various starch synthase enzymes in any starch or starch granule producing organism. The invention relates to identification of a GLucan ASSociation domain (herein after referred to as “GLASS” domain) of granule bound starch synthase (GBSS) used in combination with any other GLYcosyl TRransferase domain otherwise referred to as pfam00534-catalytic domain (herein after referred to as “GLYTR” domain) of one or more of any of the other starch synthase enzymes. The invention relates to identifying and using the new and surprising discovery that starch synthases are composed of at least two distinct functional domains herein after labeled as “GLASS” and “GLYTR”. More specifically, this invention relates to the genetic constructs that encode the fusions of the above domains and to the plants transformed with said constructs.Type: ApplicationFiled: March 29, 2002Publication date: June 3, 2004Inventors: Padma Commuri, Peter L. Keeling, Nona Ramirez, Angela McKean, Zhong Gao, Hanping Guan
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Publication number: 20030226176Abstract: This invention relates to hosts containing constructs with genes from the starch pathway. More typically the present invention relates to bacterial hosts that form plant like starches. Additionally the present invention relates to plant hosts that have genes from the starch pathway. The invention further relates to the starches produced by said hosts.Type: ApplicationFiled: January 6, 2003Publication date: December 4, 2003Applicant: Exseed Genetics LLCInventors: Hanping Guan, Peter L. Keeling
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Publication number: 20030150023Abstract: This invention relates to a method of producing a starch with unique functionality in plants through mutagenesis, and/or using biotechnology, and/or breeding practices. Further the invention relates to the starch from maize plants and/or other plants which produce starch storing organs which contain low amylose starch which has an amylose content between 1.5% and 15% and preferrably between 1.5% and 10% and most preferrably 1.5 and 8%. The invention includes starch extracted from such grain due to at least one mutation induced by ethyl methanesulfonate. Additionally, the invention uses a biotechnology approach involving controlling the activity of the granule bound starch synthase enzyme in starch storing organ. The invention includes the use of the starch for its cooking, paste, and gel properties.Type: ApplicationFiled: October 17, 2002Publication date: August 7, 2003Inventors: Jeffrey D. Klucinec, Peter L. Keeling, Padma Commuri, Ming-Tang Chang
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Patent number: 6361935Abstract: Broadly, the present invention relates to mutating starch genes in polyploid cereal grains. Specifically, this invention concerns mutant wheat plants, mutant wheat grain and the starch therefrom.Type: GrantFiled: April 8, 1999Date of Patent: March 26, 2002Assignee: ExSeed Genetics LLCInventors: Peter L. Keeling, Francie G. Dunlap, Ming Chang
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Patent number: 6143963Abstract: Broadly, the present invention relates to mutating starch genes in polyploid cereal grains. Specifically, this invention concerns mutant wheat plants, mutant wheat grain and the starch therefrom.Type: GrantFiled: October 6, 1997Date of Patent: November 7, 2000Assignee: ExSeed Genetics, L.L.C.Inventors: Peter L. Keeling, Francie G. Dunlap, Ming Chang
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Patent number: 6013861Abstract: Plants, particularly cereal plants, which have improved ability to synthesise starch at elevated or lowered temperatures and/or to synthesise starch with an altered fine structure are produced by inserting into the genome of the plant (i) a gene(s) encoding a form of an enzyme of the starch or glycogen biosynthetic pathway, particularly soluble starch synthase and/or branching enzyme and/or glycogen synthase, which display an activity which continues to increase over a temperature range over which the activity would normally be expected to decrease, and/or (ii) a gene(s) encoding sense and anti-sense constructs of enzymes of the starch biosynthetic pathway, particularly soluble starch synthase and/or branching enzyme and/or glycogen synthase, which alters the natural ratios of expression of the said enzymes or inserts enzymes with special structural characteristics which alter the natural branching pattern in starch.Type: GrantFiled: October 23, 1996Date of Patent: January 11, 2000Assignee: Zeneca LimitedInventors: Colin R. Bird, Philip A. Fentem, Peter L. Keeling, George Singletary