Patents by Inventor Charles Woodville Davis

Charles Woodville Davis 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).

  • Nitrogen containing surfactants with alkoxylation on the hydroxyl group of fatty chains
    Patent number: 10000437
    Abstract: The present invention is directed to a nitrogen containing surfactant composition comprising at least one nitrogen containing surfactant of structure (h) or structure (i). The nitrogen containing surfactant of structure (h) is as shown below: Structure (h). The nitrogen containing surfactant of structure (i) is as shown below: Structure (i). The present invention is also directed to an agricultural composition comprising at least one agrochemical and at least one nitrogen containing surfactant composition of the present invention.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: June 19, 2018
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Shawn Zhu, Biing-Ming Su, Giao Vinh Nguyen, Louis Schwarzmayr, Jinxia Susan Sun, Xiaoyu Wang, Elliot Isaac Band, Mojahedul Islam, Christine Puglisi, Wyatt Winkenwerder, Charles Woodville Davis
  • Nitrogen Containing Surfactants With Alkoxylation on the Hydroxyl Group of Fatty Chains
    Publication number: 20160009627
    Abstract: The present invention is directed to a nitrogen containing surfactant composition comprising at least one nitrogen containing surfactant of structure (h) or structure (i). The nitrogen containing surfactant of structure (h) is as shown below: Structure (h). The nitrogen containing surfactant of structure (i) is as shown below: Structure (i). The present invention is also directed to an agricultural composition comprising at least one agrochemical and at least one nitrogen containing surfactant composition of the present invention.
    Type: Application
    Filed: March 13, 2014
    Publication date: January 14, 2016
    Inventors: Shawn Zhu, Biing-Ming Su, Giao Vinh Nguyen, Louis Schwarzmayr, Jinxia Susan Sun, Xiaoyu Wang, Elliot Isaac Band, Mojahedul Islam, Christine Puglisi, Wyatt Winkenwerder, Charles Woodville Davis
  • Process for preparation of alkoxylated alkylamines/alkyl ether amines with peaked distribution
    Patent number: 8049039
    Abstract: The present invention generally relates to a process for preparing alkoxylated alkylamines and/or alkyl ether amines. The process consists of two stages and utilizes a catalyst with a multiple-charge counterion. The alkoxylated alkylamines and alkoxylated alkyl ether amines prepared by the process possess the peaked ethoxylation distribution and contain less hazardous by-product.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: November 1, 2011
    Assignee: Akzo Nobel N.V.
    Inventors: Giao Vinh Nguyen, James Alfred Ragains, Kha Carl Dang Nguyen, Charles Woodville Davis
  • PROCESS FOR PREPARATION OF ALKOXYLATED ALKYLAMINES/ALKYL ETHER AMINES WITH PEAKED DISTRIBUTION
    Publication number: 20090209788
    Abstract: The present invention generally relates to a process for preparing alkoxylated alkylamines and/or alkyl ether amines. The process consists of two stages and utilizes a catalyst with a multiple-charge counterion. The alkoxylated alkylamines and alkoxylated alkyl ether amines prepared by the process possess the peaked ethoxylation distribution and contain less hazardous by-product.
    Type: Application
    Filed: June 21, 2007
    Publication date: August 20, 2009
    Applicant: AKZO NOBEL N.V.
    Inventors: Giao Vinh Nguyen, James Alfred Ragains, Kha Carl Dang Nguyen, Charles Woodville Davis