Patents by Inventor Andrew Martin Pitt

Andrew Martin Pitt 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).

  • Production of Flake Particles
    Publication number: 20130068410
    Abstract: The invention enables thin film particles of a controlled shape and size to be generated directly upon release of a thin film coating from a textured Substrate upon which they are grown directly. The substrate comprises an array of discrete, steep sided plateaus of a selected size and shape, from which discrete particles of a corresponding shape and size are releasable usually by means of an intermediate release layer coating on the plateaus. The process is readily scalable for high volume production and permits monomodal or multimodal particle size distributions. Such particles may be used as specialised pigments in the security, anti-counterfeiting, defence and cosmetics industries.
    Type: Application
    Filed: August 20, 2010
    Publication date: March 21, 2013
    Applicant: QINETIQ LIMITED
    Inventors: David Edward Higgins, Peter Gerald Lederer, Andrew Martin Pitt, Siân Donohue
  • Release films
    Patent number: 8097321
    Abstract: This invention relates to the use of vermiculite and layer minerals in general release films.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: January 17, 2012
    Assignee: Qinetiq Limited
    Inventors: Andrew Martin Pitt, David Edward Higgins
  • Release films
    Publication number: 20040076819
    Abstract: This invention relates to the use of vermiculite and layer minerals in general in release films.
    Type: Application
    Filed: September 9, 2003
    Publication date: April 22, 2004
    Inventors: Andrew Martin Pitt, David Edward Higgins