Patents by Inventor Otto Phanstiel

Otto Phanstiel 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: 20090069441
    Abstract: Disclosed herein are motuporamine mimic agents and methods of making and using same. Particularly exemplified are motuporamine mimic agents comprising cytotoxic activity and/or anti-metaplastic activity.
    Type: Application
    Filed: February 26, 2008
    Publication date: March 12, 2009
    Inventor: Otto Phanstiel
  • Publication number: 20070213397
    Abstract: Disclosed herein are motuporamine mimic agents and methods of making and using same. Particularly exemplified are motuporamine mimic agents comprising cytotoxic activity and/or anti-metaplastic activity.
    Type: Application
    Filed: March 14, 2006
    Publication date: September 13, 2007
    Inventor: Otto Phanstiel
  • Publication number: 20070088081
    Abstract: Polyamine compounds, method of synthesis and method of use for anti-cancer purposes, for enhancing the activity of existing anti-cancer drugs, as well as, for inhibiting N-Methyl-D-Aspartate (NMDA) receptors found in neurotransmission systems are provided. Certain polyamine motifs have been identified that can be attached to toxic agents to facilitate their access to cancer cells as well as polyamine compounds of surprising cytotoxicity with selectivity in killing cancer cells, and surprising utility in the treatment of Alzheimer's disease and brain stroke. It includes an illustrative conjugate system with examples of a triamine or a tetraamine appended to a cytotoxic agent. Included is a general strategy to enhance cell uptake by attaching a polyamine vectoring system with an example of a triamine vector attached to an existing anti-cancer drug to improve its chemotherapeutic potency.
    Type: Application
    Filed: March 10, 2006
    Publication date: April 19, 2007
    Inventor: Otto Phanstiel
  • Patent number: 7001925
    Abstract: Polyamine compounds, method of synthesis and method of use for anti-cancer purposes, and for enhancing the activity of existing anti-cancer drugs are provided. This disclosure has identified certain polyamine motifs that can be attached to toxic agents to facilitate their access to cancer cells as well as polyamine compounds of surprising cytotoxicity and selectivity in killing cancer cells. It includes an illustrative conjugate system with examples of a triamine or a tetraamine appended to a cytotoxic agent. There are five method schemes illustrative of the synthesis of the compounds of the invention. Included is a general strategy to enhance cell uptake by attaching a polyamine vectoring system with an example of a triamine vector attached to an existing anti-cancer drug to improve its chemotherapeutic potency. There is an illustration of using the triamine vector to improve the selectivity of an anthracenylmethyl amine cytotoxic agent (e.g.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: February 21, 2006
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventor: Otto Phanstiel
  • Patent number: 5210191
    Abstract: Substituted alkoxy- or alkylthiochlorotriazines wherein the substituents on the alkoxy groups are chlorine, bromine or dialkylphosphato are useful as capping agents for polyphenylene ethers. The capped polyphenylene ethers form copolymers with other polymers containing nucleophilic groups, including polyesters, polyamides and functionalized olefin polymers. Such copolymers serve as compatibilizers in the formation of blends having high impact strength.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: May 11, 1993
    Assignee: General Electric Company
    Inventors: Otto Phanstiel, Sterling B. Brown
  • Patent number: 5162448
    Abstract: Ortho ester-capped polyphenylene ethers are prepared by the reaction of a polyphenylene ether with a reactive compound containing an ortho ester group, preferably a 4-(2-methoxy-2-methyl-1,3-dioxolane-4-yl)methyl group. Chlorotriazines containing the ortho ester substituent are particularly preferred as capping agents. The capped polyphenylene ethers form copolymer-containing compositions with polyesters and other polymers containing carboxylic acid groups.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: November 10, 1992
    Assignee: General Electric Company
    Inventors: Farid F. Khouri, Otto Phanstiel, IV
  • Patent number: 5159075
    Abstract: Substituted alkoxy- or alkylthiochlorotriazines wherein the substituents on the alkoxy groups are chlorine, bromine or dialkylphosphato are useful as capping agents for polyphenylene ethers. The capped polyphenylene ethers form copolymers with other polymers containing nucleophilic groups, including polyesters, polyamides and functionalized olefin polymers. Such copolymers serve as compatibilizers in the formation of blends having high impact strength.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: October 27, 1992
    Assignee: General Electric Company
    Inventors: Otto Phanstiel, Sterling B. Brown
  • Patent number: 5142049
    Abstract: Ortho ester-substituted chlorotriazines are prepared by the reaction of a dichlorotriazine with a reactive compound containing an ortho ester group, preferably a 4-(2-methoxy-2-methyl-1,3-dioxolan-4-yl)methyl group. They are useful as capping agents for polyphenylene ethers. The capped polyphenylene ethers form copolymer-containing compositions with polyesters, polyamides and other polymers containing carboxylic acid or amine groups.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: August 25, 1992
    Assignee: General Electric Company
    Inventors: Farid F. Khouri, John T. Jackman, Otto Phanstiel, IV
  • Patent number: 5132373
    Abstract: Ortho ester-capped polyphenylene ethers are prepared by the reaction of a polyphenylene ether with a reactive compound containing an ortho ester group, preferably a 4-(2-methoxy-2-methyl-1,3-dioxolan-4-yl)methyl group. Chlorotriazines containing the ortho ester substituent are particularly preferred as capping agents. The capped polyphenylene ethers form copolymer-containing compositions with polyesters and other polymers containing carboxylic acid groups.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: July 21, 1992
    Assignee: General Electric Company
    Inventors: Farid F. Khouri, Otto Phanstiel, IV, Sterling B. Brown, John T. Jackman
  • Patent number: 5089567
    Abstract: Substituted alkoxy- or alkylthiochlorotriazines wherein the substituents on the alkoxy groups are chlorine, bromine or dialkylphosphato are useful as capping agents for polyphenylene ethers. The capped polyphenylene ethers form copolymers with other polymers containing nucleophilic groups, including polyesters, polyamides and functionalized olefin polymers. Such copolymers serve as compatibilizers in the formation of blends having high impact strength.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: February 18, 1992
    Assignee: General Electric Company
    Inventors: Otto Phanstiel, Sterling B. Brown