Patents by Inventor Philip A. Cassista

Philip A. Cassista 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: 7534954
    Abstract: An electrified musical instrument having a pickup wire (30), multiple strings (6), and a frame, typically comprising a head (2), diagonal arm (24), front column (16), and rear column (18), arranged in such a way as to provide an electrical signal from vibrations in the strings.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: May 19, 2009
    Inventor: Philip A. Cassista
  • Publication number: 20020007459
    Abstract: The invention is a device for the controlling or limiting of access to electronic networks, comprising a mechanical lock or other standard access control device (such as a numeric keypad, keylock switch, or biometric sensor), a switchable data connection, and an electronic means for detecting and reporting tampering attempts. Specifically, this method and apparatus is designed to be easy to understand and apply, and it inherently embodies simple but effective barriers to spoofing attempts.
    Type: Application
    Filed: July 16, 2001
    Publication date: January 17, 2002
    Inventors: Gerard R. Cassista, Philip A. Cassista
  • Patent number: 5959493
    Abstract: A totem pole driver circuit for driving N-channel Field Effect Transistors and Insulated Gate Bipolar Transistors, using a binary to decimal decoder/demultiplexer or a decoding analog multiplexer integrated circuit and signal transformers for switching the totem pole transistors, and employing a dead-time delay in the logic circuit to protect the transistors during switching.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: September 28, 1999
    Inventor: Philip A. Cassista