Patents by Inventor Stephen H. Wolf

Stephen H. Wolf 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: 7083497
    Abstract: An optical sensor that includes a light source and a detector is located within a cavity in a polishing pad so as to face the surface that is being polished. Light from the light source is reflected from the surface being polished and the detector detects the reflected light. The electrical signal produced by the detector is conducted to a hub located at the central aperture of the polishing pad. The disposable polishing pad is removably connected, both mechanically and electrically to the hub. The hub contains electronic circuitry that is concerned with supplying power to the optical sensor and with transmitting the electrical signal to a non-rotating station. Several techniques are described for accomplishing these tasks. The system permits continuous monitoring of an optical characteristic of a surface that is being polished, even while the polishing machine is in operation, and permits the end point of the polishing process to be determined.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: August 1, 2006
    Assignee: Strasbaugh, Inc.
    Inventors: David G. Halley, Gregory L. Barbour, Ben Smedley, Stephen H. Wolf
  • Patent number: 6986701
    Abstract: An optical sensor that includes a light source and a detector is located within a cavity in a polishing pad so as to face the surface that is being polished. Light from the light source is reflected from the surface being polished and the detector detects the reflected light. The electrical signal produced by the detector is conducted to a hub located at the central aperture of the polishing pad. The disposable polishing pad is removably connected, both mechanically and electrically to the hub. The hub contains electronic circuitry that is concerned with supplying power to the optical sensor and with transmitting the electrical signal to a non-rotating station. Several techniques are described for accomplishing these tasks. The system permits continuous monitoring of an optical characteristic of a surface that is being polished, even while the polishing machine is in operation, and permits the end point of the polishing process to be determined.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: January 17, 2006
    Assignee: Strasbaugh
    Inventors: David G. Halley, Gregory L. Barbour, Ben Smedley, Stephen H. Wolf
  • Patent number: 6739945
    Abstract: An optical sensor that includes a light source and a detector is located within a cavity in a polishing pad so as to face the surface that is being polished. Light from the light source is reflected from the surface being polished and the detector detects the reflected light. The electrical signal produced by the detector is conducted to a hub located at the central aperture of the polishing pad. The disposable polishing pad is removably connected, both mechanically and electrically to the hub. The hub contains electronic circuitry that is concerned with supplying power to the optical sensor and with transmitting the electrical signal to a non-rotating station. Several techniques are described for accomplishing these tasks. The system permits continuous monitoring of an optical characteristic of a surface that is being polished, even while the polishing machine is in operation, and permits the end point of the polishing process to be determined.
    Type: Grant
    Filed: September 29, 2001
    Date of Patent: May 25, 2004
    Assignee: Strasbaugh
    Inventors: David G. Halley, Gregory L. Barbour, Ben Smedley, Stephen H. Wolf
  • Publication number: 20020090887
    Abstract: An optical sensor that includes a light source and a detector is located within a cavity in a polishing pad so as to face the surface that is being polished. Light from the light source is reflected from the surface being polished and the detector detects the reflected light. The electrical signal produced by the detector is conducted to a hub located at the central aperture of the polishing pad. The disposable polishing pad is removably connected, both mechanically and electrically to the hub. The hub contains electronic circuitry that is concerned with supplying power to the optical sensor and with transmitting the electrical signal to a non-rotating station. Several techniques are described for accomplishing these tasks. The system permits continuous monitoring of an optical characteristic of a surface that is being polished, even while the polishing machine is in operation, and permits the end point of the polishing process to be determined.
    Type: Application
    Filed: September 29, 2001
    Publication date: July 11, 2002
    Inventors: David G. Halley, Gregory L. Barbour, Ben Smedley, Stephen H. Wolf
  • Patent number: 4656039
    Abstract: Chewing gum products are structured in layered form with all the water sensitive components of the formulation being placed in a core layer and encased in outer layers of water insensitive materials.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: April 7, 1987
    Assignee: Nabisco Brands, Inc.
    Inventors: Gilbert Weiss, Ronald P. D'Amelia, Richard A. Reggio, Stephen H. Wolf
  • Patent number: 4352825
    Abstract: A coextruded chewing gum is provided which includes an extruded center portion surrounded by and bonded to an extruded outer shell portion. The center portion of the coextruded chewing gum will be of a generally soft consistency, substantially softer than that ordinarily employed in chewing gums of conventional structure, while the outer shell portion will provide a protective layer or coating for the core portion to inhibit sweating and stickiness and thereby allow for use of conventional wrapping machines.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: October 5, 1982
    Assignee: Nabisco Brands, Inc.
    Inventors: Subraman R. Cherukuri, Raymond L. Roy, Dominick R. Friello, Stephen H. Wolf
  • Patent number: 4352823
    Abstract: A coextruded chewing gum is provided which includes an extruded center portion surrounded by and bonded to an extruded outer shell portion. The center portion of the coextruded chewing gum formed of a non-SBR gum, will be of a generally soft consistency, a moisture content of at least about 5% up to about 10% by weight of the core, while the outer shell portion will provide a protective layer or coating for the core portion to inhibit sweating and stickiness and thereby allow for use of conventional wrapping machines.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: October 5, 1982
    Assignee: Nabisco Brands, Inc.
    Inventors: Subraman R. Cherukuri, Raymond L. Roy, Dominick R. Friello, Stephen H. Wolf