Patents by Inventor John Walter Locher

John Walter Locher 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: 20180223446
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Application
    Filed: March 29, 2018
    Publication date: August 9, 2018
    Inventors: John Walter Locher, Steven Anthony Zanella, Ralph Lampson MacLean, JR., Herbert Ellsworth Bates
  • Patent number: 9963800
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: May 8, 2018
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: John Walter Locher, Steven Anthony Zanella, Ralph Lampson MacLean, Jr., Herbert Ellsworth Bates
  • Patent number: 9926645
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: March 27, 2018
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: John Walter Locher, Steven Anthony Zanella, Ralph Lampson MacLean, Jr., Herbert Ellsworth Bates
  • Publication number: 20180016704
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Application
    Filed: September 18, 2017
    Publication date: January 18, 2018
    Inventors: John Walter Locher, Steven Anthony Zanella, Ralph Lampson MacLean, JR., Herbert Ellsworth Bates
  • Publication number: 20170342591
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Application
    Filed: April 17, 2017
    Publication date: November 30, 2017
    Inventors: John Walter Locher, Steven Anthony Zanella, Ralph Lampson MacLean, JR., Herbert Ellsworth Bates
  • Publication number: 20170183792
    Abstract: An apparatus for production of single crystal sapphire is disclosed. The apparatus can include a die and an insulated chimney mounted above the die. The die can be in a first active heat zone. The chimney can include a second heat zone. The apparatus may be used in edge defined film-fed growth techniques for the production of single crystal material exhibiting an absence of lineage.
    Type: Application
    Filed: August 2, 2016
    Publication date: June 29, 2017
    Inventors: Guilford L. Mack, III, Christopher D. Jones, Fery Pranadi, John Walter Locher, Steven Anthony Zanella, Herbert Ellsworth Bates
  • Patent number: 9551089
    Abstract: The present disclosure is directed to an apparatus and method for growing a sapphire sheet via edge-defined film-fed growth (EFG) including an angled heat shield with respect to the a side surface of a die tip. The present disclosure is further directed to an sapphire sheets and batches of such sheets having features such as a particular maximum low spot thickness.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: January 24, 2017
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Marc Ouellette, Joseph M. Collins, John Walter Locher, Guilford L. Mack, III, Abbie M. Jennings, Jan J. Buzniak, Christopher D. Jones
  • Publication number: 20140311402
    Abstract: The present disclosure is directed to an apparatus and method for growing a sapphire sheet via edge-defined film-fed growth (EFG) including an angled heat shield with respect to the a side surface of a die tip. The present disclosure is further directed to an sapphire sheets and batches of such sheets having features such as a particular maximum low spot thickness.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 23, 2014
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Marc Ouellette, Joseph M. Collins, John Walter Locher, Guilford L. Mack, III, Abbie M. Jennings, Jan J. Buzniak, Christopher D. Jones
  • Publication number: 20140272413
    Abstract: The present disclosure is directed to an apparatus and method for forming sapphire ribbons via Edge-Defined Film-Fed Growth (EFG). Further, the present disclosure is directed to a plurality of concurrently grown sapphire ribbons having features such as a low dimensional variability and elimination of voiding between the sapphire ribbons concurrently grown in a batch.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Marc Ouellette, Joseph M. Collins, John Walter Locher, Guilford L. Mack, III, Abbie M. Jennings, Jan J. Buzniak, Christopher D. Jones
  • Publication number: 20140150716
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Application
    Filed: February 10, 2014
    Publication date: June 5, 2014
    Inventors: John Walter Locher, Stephen Anthony Zanella, Ralph Lampson MacLean, JR., Herbert Ellsworth Bates
  • Publication number: 20140116323
    Abstract: A method and apparatus for the production of C-plane single crystal sapphire is disclosed. The method and apparatus may use edge defined film-fed growth techniques for the production of single crystal material exhibiting low polycrystallinity and/or low dislocation density.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 1, 2014
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Vitali Tatartchenko, Christopher D. Jones, Stephen Anthony Zanella, John Walter Locher, Fery Pranadi
  • Publication number: 20140017479
    Abstract: A method and apparatus for the production of r-plane single crystal sapphire is disclosed. The method and apparatus may use edge defined film-fed growth techniques for the production of single crystal material exhibiting an absence of lineage.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 16, 2014
    Inventors: Guilford L. Mack, III, Christopher D. Jones, Fery Pranadi, John Walter Locher, Steven Anthony Zanella, Herbert Ellsworth Bates
  • Publication number: 20120145069
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 14, 2012
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: John Walter Locher, Steven Anthony Zanella, Ralph Lampson MacLean, JR., Herbert Ellsworth Bates
  • Publication number: 20100282160
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Application
    Filed: January 29, 2008
    Publication date: November 11, 2010
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: John Walter Locher, Steven Anthony Zanella, Ralph Lampson MacLean, JR., Herbert Ellsworth Bates
  • Patent number: 7348076
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: March 25, 2008
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: John Walter Locher, Steven Anthony Zanella, Ralph Lampson MacLean, Jr., Herbert Ellsworth Bates
  • Patent number: RE43469
    Abstract: Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: June 12, 2012
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: John Walter Locher, Steven Anthony Zanella, Ralph Lampson MacLean, Herbert Ellsworth Bates