Patents by Inventor Stuart Clark

Stuart Clark 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).

  • Publication number: 20080053490
    Abstract: The method involves filling a well containing a contact lens with aqueous solution. Multiple injection nozzles inject streams of the aqueous solution into the well. The multiple injection nozzles are arranged to prevent non-centering of the contact lens in the well.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 6, 2008
    Inventors: Stuart Clark, Scott Wilson
  • Patent number: 7335576
    Abstract: A preprocessed semiconductor substrate such as a wafer is provided with a metal etch mask which defines singulation channels on the substrate surface. An isotropic etch process is used to define a singulation channel with a first depth extending into the semiconductor substrate material. A second anisotropic etch process is used to increase the depth of the singulation channel while providing substantially vertical singulation channel sidewalls. The singulation channel can be extended through the depth of the substrate or, in an alternative embodiment, a predetermined portion of the inactive surface of the substrate removed to expose the singulation channels. In this manner, semiconductor die can be precisely singulated from a wafer while maintaining vertical die sidewalls.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: February 26, 2008
    Assignee: Irvine Sensors Corp.
    Inventors: Ludwig David, James Yamaguchi, Stuart Clark, W. Eric Boyd
  • Publication number: 20040230652
    Abstract: A system and method for sequencing messages in a collaborative environment is provided. Sequence numbers are maintained for each message sent by each participant in a project. A table containing the sequence number of the current message and the sequence numbers maintained for each participant is sent along with each message. The sequence number stored by the recipient and the sequence number sent along with the current message are compared to determine if the messages are in the correct order.
    Type: Application
    Filed: February 17, 2004
    Publication date: November 18, 2004
    Inventors: Julio Estrada, Stuart Clark
  • Publication number: 20040230793
    Abstract: A system and method for encrypting and authenticating messages in a collaborative work environment. A secure email mailbox is incorporated into a user's existed email system. Each message sent and received from the secure mailbox is encrypted and authenticated. Encryption and authentication performed using symmetric keys, certificates, and public/private key pairs.
    Type: Application
    Filed: February 17, 2004
    Publication date: November 18, 2004
    Inventors: Julio Estrada, Stuart Clark
  • Publication number: 20040230662
    Abstract: A system and method is provided for sending and receiving large messages in a collaborative work environment. Large messages are broken into smaller chunks each having a sequence number. The chunks are stored in a queue until all chunks of a message are received. The chunks are then reassembled at the destination based on the sequence numbers.
    Type: Application
    Filed: February 17, 2004
    Publication date: November 18, 2004
    Inventors: Julio Estrada, Stuart Clark
  • Publication number: 20040230658
    Abstract: A system and method are provided for downloading and initializing a collaborative workspace environment. A user receives an invitation to join a project and downloads the collaborative workspace software from a registration server. The user then registers the downloaded software and sends and acceptance to the invitor.
    Type: Application
    Filed: February 17, 2004
    Publication date: November 18, 2004
    Inventors: Julio Estrada, Stuart Clark
  • Patent number: 4943007
    Abstract: A spray generator for producing a spray of liquid droplets of a narrow size spectrum in which a substantially uniform cyclic disturbance is imposed on fluid energing at a nozzle. Such a disturbance can be produced by a fluidic bistable oscillator or by allowing the fluid to flow across a bluff body in the flow path. An opposed jet arrangement can be located within the vortex chamber of a fluidic diode and the liquid spray produced can meet swirling gas introduced at tangential inlets to the chamber.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: July 24, 1990
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: Michael J. Bowe, Stuart A. Clark