Patents by Inventor John Louis Frederick Charles Collins

John Louis Frederick Charles Collins 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).

  • Patent number: 6225960
    Abstract: A microwave antenna (10) is formed from a stack of generally planar elements (14-122) forming an array of horns (12) communicating with waveguides (38). The generally planar elements (14-22) are of metallized plastics. Each of these elements (14-22) has a given overall thickness which is constituted by a membrane of relatively small thickness formed (typically by vacuum forming) into a corrugated shape.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: May 1, 2001
    Inventor: John Louis Frederick Charles Collins