Patents by Inventor Ian A. Pearl

Ian A. Pearl 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).

  • Spiro cyclohexanedione derivates as herbicides
    Patent number: 11980188
    Abstract: The present invention relates to compounds of Formula (I), wherein R1, R2, R3, R4 and G are as defined herein. The invention further relates to herbicidal compositions which comprise a compound of Formula (I), to their use for controlling weeds, in particular in crops of useful plants.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 14, 2024
    Assignee: SYNGENTA PARTICIPATIONS AG
    Inventors: Alan Joseph Hennessy, Elizabeth Pearl Jones, Shuji Hachisu, Nigel James Willetts, Suzanna Dale, Alexander William Gregory, Ian Thomas Tinmouth Houlsby, Yunas Bhonoah, Julia Comas-Barcelo
  • Low profile tracheostomy tube assembly
    Patent number: 5458139
    Abstract: A tracheostomy tube assembly including an outer cannula having a hollow tube-shaped body with an interior passage therethrough, an open distal end, and a proximal end zone including an open proximal end; an inner cannula having a hollow tube-shaped body having an air flow channel therethrough, a first open end and an opposite second end zone including an open second end, the inner cannula being structured for fitted, sliding receipt within the inner passage of the outer cannula such that the second end zone protrudes from the open proximal end of the outer cannula.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: October 17, 1995
    Assignee: Susan O. Pearl
    Inventor: Ian A. Pearl