Patents by Inventor John C. Steffens

John C. Steffens 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).

  • Publication number: 20140249301
    Abstract: The invention provides novel methods and compositions directed to farnesol production, accumulation and cellular sequestration in plants. More specifically, the methods of the invention comprise modifying plant cells that express farnesene to convert the farnesene to farnesol, and in some cases, to farnesol glycoside, such as farnesol glucoside. In other embodiments, carbon flux is shunted towards sesquiterpene production by applying certain plant growth regulators and herbicides to increase sesquiterpene production.
    Type: Application
    Filed: February 26, 2014
    Publication date: September 4, 2014
    Applicant: Chromatin, Inc.
    Inventor: John C. Steffens
  • Publication number: 20130029382
    Abstract: Compositions and methods are provided for treating lignocellulosic material with a dual activity enzyme having xylanase and cellulase activity. The enzyme is stable and active at increased pH and increased temperatures. The present invention therefore provides methods for hydrolyzing lignocellulosic material, especially cellulose and hemicellulose, which are major components of the cell wall of non-woody and woody plants. The methods for hydrolyzing cellulose and hemicellulose can be used on any plant, wood or wood product, wood waste, paper pulp, paper product or paper waste or byproduct.
    Type: Application
    Filed: January 21, 2011
    Publication date: January 31, 2013
    Applicant: SYNGENTA PARTICIPATIONS AG
    Inventors: John C. Steffens, Paul Oeller, Laurent Fourage
  • Patent number: 6160204
    Abstract: The present invention describes the cloning and sequencing of plant Polyphenol Oxidase (PPO) cDNAs which has subsequently permitted their use to genetically transform plants to achieve a variety of desired phenotypes.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 12, 2000
    Assignee: Cornell Research Foundation, Inc.
    Inventor: John C. Steffens
  • Patent number: 6066482
    Abstract: Essentially pure acyltransferase is provided which is functional to catalyze reaction to form sugar esters. Also provided is isolated gene encoding acyltransferase. Additionally provided is method for forming palmityl esters of glucose comprising reacting 1-O-palmitoyl-.beta.-D-glucose with itself, with glucose or with palmityl partial ester of glucose in the presence of a catalytically effective amount of acyltransferase.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: May 23, 2000
    Assignee: Cornell Research Foundation, Inc.
    Inventors: John C. Steffens, Gurdey S. Ghangas
  • Patent number: 6011145
    Abstract: Enzyme activities which transfer glucose from uridine 5'-diphosphate glucose to fatty acids to form 1-O-acyl-.beta.-glucoses which act as acyl donors in the esterification of glucose and further esterification of partially acylated glucose and in the esterification of sucrose and further esterification of partially acylated sucrose, are separated according to specificity for transferring glucose to short, medium or long chain length fatty acids. DNA molecules coding for the enzyme activities are isolated. Methods for preparing 1-O-acyl-.beta.-D-glucoses comprise reacting uridine 5'-diphosphate glucose and fatty acid in the presence of the appropriate enzyme activity.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: January 4, 2000
    Assignee: Cornell Research Foundation, Inc.
    Inventors: John C. Steffens, Gurdev S. Ghangas, Jian-Ping Kuai, Nancy T. Eannetta
  • Patent number: 5756328
    Abstract: Essentially pure acyltransferase is provided which is functional to catalyze reaction to form sugar esters. Also provided is isolated gene encoding acyltransferase. Additionally provided is method for forming palmityl esters of glucose comprising reacting 1-O-palmitoyl-.beta.-D-glucose with itself, with glucose or with palmityl partial ester of glucose in the presence of a catalytically effective amount of acyltransferase.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: May 26, 1998
    Assignee: Cornell Research Foundation, Inc.
    Inventors: John C. Steffens, Gurdev S. Ghangas
  • Patent number: 4943563
    Abstract: 2,3,4-Triacylhexoses and mixtures thereof have been found to repel insects from plants. The hexoses may be readily formulated into insect repellant compositions by blending them with inert carriers and then depositing the resultant compositions upon a surface to be protected from attack by the insects.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: July 24, 1990
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Martha A. Mutschler, John C. Steffens, Joseph C. Goffreda, Ward N. Isgay