Patents by Inventor Leonard Edward Kosinski

Leonard Edward Kosinski 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).

  • Sulfonated aliphatic-aromatic copolyesters
    Patent number: 6746779
    Abstract: A copolyester having an inherent viscosity of equal to or greater than about 0.3 formed from about 20 to about 60 mole percent based on the amount of aromatic dicarboxylic acid of one or more of isophthalic dicarboxylic acid or an alkyl diester thereof, about 40 to about 80 mole percent based on the amount of aromatic dicarboxylic acid of one or more of terephthalic acid or 2,6-naphthalene dicarboxylic acid or an alkyl diester thereof, about 10 to about 60 mole based on the total amount of dicarboxylic acids of one or more aliphatic dicarboxylic acids or an alkyl diester, about 0.1 to about 5 mole percent based on the moles of total dicarboxylic acid of one or more alkali or alkaline earth metal salts of 5-sulfoisophthalic dicarboxylic acid or an alkyl diester thereof, about 90 to 100 mole percent based on the total amount of glycols of one or more aliphatic glycols, and 0 to about 10 mole percent based on the total amount of glycols of one or more of di(ethylene glycol) and tri(ethylene glycol).
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: June 8, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard Allen Hayes, Leonard Edward Kosinski
  • Method of supporting plant growth using polymer fibers as a soil substitute
    Patent number: 6555219
    Abstract: The present invention relates to a soil substitute useful in supporting plant growth. More particularly, the present invention relates to biodegradable and non-biodegradable polymer fibers for use in plant cultivation.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: April 29, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Leonard Edward Kosinski
  • Method of supporting plant growth using polymer fibers as a soil substitute
    Publication number: 20030051398
    Abstract: The present invention relates to a soil substitute useful in supporting plant growth. More particularly, the present invention relates to biodegradable and non-biodegradable polymer fibers for use in plant cultivation.
    Type: Application
    Filed: March 22, 2002
    Publication date: March 20, 2003
    Inventor: Leonard Edward Kosinski
  • Sulfonated aliphatic-aromatic copolyesters
    Publication number: 20030036626
    Abstract: A copolyester having an inherent viscosity of equal to or greater than about 0.3 formed from about 20 to about 60 mole percent based on the amount of aromatic dicarboxylic acid of one or more of isophthalic dicarboxylic acid or an alkyl diester thereof, about 40 to about 80 mole percent based on the amount of aromatic dicarboxylic acid of one or more of terephthalic acid or 2,6-naphthalene dicarboxylic acid or an alkyl diester thereof, about 10 to about 60 mole based on the total amount of dicarboxylic acids of one or more aliphatic dicarboxylic acids or an alkyl diester, about 0.1 to about 5 mole percent based on the moles of total dicarboxylic acid of one or more alkali or alkaline earth metal salts of 5-sulfoisophthalic dicarboxylic acid or an alkyl diester thereof, about 90 to 100 mole percent based on the total amount of glycols of one or more aliphatic glycols, and 0 to about 10 mole percent based on the total amount of glycols of one or more of di(ethylene glycol) and tri(ethylene glycol).
    Type: Application
    Filed: August 10, 2001
    Publication date: February 20, 2003
    Inventors: Richard Allen Hayes, Leonard Edward Kosinski
  • Method of supporting plant growth using polymer fibers as a soil substitute
    Patent number: 6397520
    Abstract: The present invention relates to a soil substitute useful in supporting plant growth. More particularly, the present invention relates to biodegradable and non-biodegradable polymer fibers for use in plant cultivation.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: June 4, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Leonard Edward Kosinski