Patents by Inventor Patricia A. Thibos

Patricia A. Thibos 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).

  • Preparation of 5-amino-1,2,4-triazole-3-sulfonamides
    Patent number: 5382674
    Abstract: 5-Amino-l,2,4-triazole-3-sulfonamides, which are intermediates for substituted 1,2,4-triazolo-[1,5-a]pyrimidine-2-sulfonamide herbicides are prepared in two steps from 5-amino-3-mercapto-1,2,4-triazole by chlorination in a medium containing an aqueous acid to obtain 5-amino-3-chlorosulfonyl-1,2,4-triazole and subsequent condensation of this intermediate with substituted anilines. The condensation reaction takes place either in the presence or absence of an acid scavenging base.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: January 17, 1995
    Assignee: DowElanco
    Inventors: Jack C. Little, Mariam G. Kidisti, Patricia A. Thibos, Susan D. Thompson
  • 5-amino-1,2,4-triazole-3-sulfonamides
    Patent number: 5359079
    Abstract: 5-Amino-1,2,4-triazole-3-sulfonamides, which are intermediates for substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide herbicides are prepared in two steps from 5-amino-3-mercapto-1,2,4-triazole by chlorination in a medium containing an aqueous acid to obtain 5-amino-3-chlorosulfonyl-1,2,4-triazole and subsequent condensation of this intermediate with substituted anilines. The condensation reaction takes place either in the presence or absence of an acid scavenging base.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: October 25, 1994
    Assignee: DowElanco
    Inventors: Jack C. Little, Patricia A. Thibos, Mariam G. Kidisti, Susan D. Thompson
  • Method of making an assembly comprising a foraminous core, self-locking, helically wound, hollow fiber bundle
    Patent number: 4838970
    Abstract: Elongated, large diameter, helically wound, hollow fiber bundles which are stable, do not require "dead-end tubesheets" to keep the bundle ends from slipping and exhibit only slight "dog-boning" can be formed by controlling the winding parameters so that the bundle consists of successively shorter or longer "formations" of successively longer strata, each stratum consisting of from about one to a plurality of coverages (of the underlying core or bundle surface).
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: June 13, 1989
    Assignee: The Dow Chemical Company
    Inventor: Patricia A. Thibos
  • Assembly comprising a foraminous core, resinous tubesheet and self-locking, helically wound, hollow fiber bundle
    Patent number: 4824566
    Abstract: Elongated, large diameter, helically wound, hollow fiber bundles which are stable, do not require "dead-end tubesheets" to keep the bundle ends from slipping and exhibit only slight "dog-boning" can be formed by controlling the winding parameters so that the bundle consists of successively shorter or longer "formations" of successively longer strata, each stratum consisting of from about one to a plurality of coverages (of the underlying core or bundle surface).
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: April 25, 1989
    Assignee: The Dow Chemical Company
    Inventor: Patricia A. Thibos