Patents by Inventor Lauri Kirby Kirkpatrick

Lauri Kirby Kirkpatrick 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).

  • Dynamic multipurpose composition for the removal of photoresists and method for its use
    Patent number: 9243218
    Abstract: Methods for using improved stripper solutions having dimethyl sulfoxide; a quaternary ammonium hydroxide; an alkanolamine having at least two carbon atoms, at least one amino substituent and at least one hydroxyl substituent, with the amino and hydroxyl substituents being attached to two different carbon atoms; and a surfactant. Some formulation can additionally contain a secondary solvent. The stripper solutions are effective for removing photoresists from substrates, and typically have freezing points below about +15° C. and high loading capacities.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: January 26, 2016
    Assignee: Dynaloy, LLC
    Inventors: Michael T. Phenis, Lauri Kirby Kirkpatrick, Raymond Chan, Diane Marie Scheele, Kimberly Dona Pollard
  • DYNAMIC MULTIPURPOSE COMPOSITION FOR THE REMOVAL OF PHOTORESISTS AND METHOD FOR ITS USE
    Publication number: 20100089426
    Abstract: Methods for using improved stripper solutions having dimethyl sulfoxide; a quaternary ammonium hydroxide; an alkanolamine having at least two carbon atoms, at least one amino substituent and at least one hydroxyl substituent, with the amino and hydroxyl substituents being attached to two different carbon atoms; and a surfactant. Some formulation can additionally contain a secondary solvent. The stripper solutions are effective for removing photoresists from substrates, and typically have freezing points below about +15° C. and high loading capacities.
    Type: Application
    Filed: December 15, 2009
    Publication date: April 15, 2010
    Inventors: Michael T. Phenis, Lauri Kirby Kirkpatrick, Raymond Chan, Diane Marie Scheele, Kimberly Dona Pollard
  • Dynamic multi-purpose composition for the removal of photoresists and method for its use
    Patent number: 7632796
    Abstract: Improved stripper solutions for removing photoresists from substrates are provided that typically have freezing points below about +15° C. and high loading capacities. The stripper solutions comprise dimethyl sulfoxide, a quaternary ammonium hydroxide, and an alkanolamine having at least two carbon atoms, at least one amino substituent and at least one hydroxyl substituent, the amino and hydroxyl substituents attached to two different carbon atoms. Some formulation can additionally contain a secondary solvent. Methods for use of the stripping solutions are additionally provided.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: December 15, 2009
    Assignee: Dynaloy, LLC
    Inventors: Michael T. Phenis, Lauri Kirby Kirkpatrick, Raymond Chan, Diane Marie Scheele, Kimberly Dona Pollard, Gene Goebel