Patents by Inventor Laurence Anthony Pears

Laurence Anthony Pears 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).

  • PROTECTIVE APPAREL
    Publication number: 20080178876
    Abstract: Apparel suitable for providing protection against noxious agents, wherein the apparel comprises a laminate material that provides a substantially effective barrier against the noxious agents. It is preferred that the laminate material comprises two or more layers, at least one of which is a barrier layer that is a substantially effective barrier against the noxious agents and at least one of which is a protective layer that protects the at least one barrier layer.
    Type: Application
    Filed: November 7, 2007
    Publication date: July 31, 2008
    Inventors: Laurence Anthony Pears, Grant Stuart Richardson, Christopher John Hindmarsh, Brian Alan Beadle
  • Protective apparel
    Patent number: 7311102
    Abstract: Apparel suitable for providing protection against noxious agents, wherein the apparel comprises a laminate material that provides a substantially effective barrier against the noxious agents. It is preferred that the laminate material comprises two or more layers, at least one of which is a barrier layer that is a substantially effective barrier against the noxious agents and at least one of which is a protective layer that protects the at least one barrier layer.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: December 25, 2007
    Assignee: The Secretary of State for Defence
    Inventors: Laurence Anthony Pears, Grant Stuart Richardson, Christopher John Hindmarsh, Brian Alan Beadle
  • Combined vapor and particulate filter
    Patent number: 6821321
    Abstract: A personal respirator has a face mask and is provided with a filter unit comprising a canister housing contiguous layers of novel filter material. The filter material is suitable for both particulate and vapor filtration, and comprises a composite of first and second groups of chopped fibres, the fibres of the first group having a relatively large diameter (about 7×10−6 m) and the second group having a relatively small diameter (about 0.5×10−6 m).
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: November 23, 2004
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Matthew Joseph Chinn, Laurence Anthony Pears
  • Combined vapour and particulate filter
    Publication number: 20030019193
    Abstract: With reference to FIGS. (1 and 2), a personal respirator (1) has a face mask (2) and is provided with a filter unit (3) comprising a canister (4) housing contiguous layers (5) of novel filter material (6). The filter material (6) is suitable for both particulate and vapour filtration, and comprises a composite of first and second groups (10, 11) of chopped fibres, the fibres of the first group (10) having a relatively large diameter (about 7×10−6m) and the second group (11) having a relatively small diameter (about 0.5×10−6m).
    Type: Application
    Filed: September 3, 2002
    Publication date: January 30, 2003
    Inventors: Matthew Joseph Chinn, Laurence Anthony Pears