Patents by Inventor Stephen Longo

Stephen Longo 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: 20250034694
    Abstract: Surface modified substrates and related methods are provided. A substrate having a modified surface comprises a first region and a second region. The first region is located above the second region. The first region comprises an aluminum fluoride. The second region comprises an aluminum alloy. A concentration of the aluminum fluoride gradually decreases from the first region to the second region.
    Type: Application
    Filed: July 23, 2024
    Publication date: January 30, 2025
    Inventors: Carlo Waldfried, Surendra Maharjan, Stephen Longo
  • Publication number: 20250034700
    Abstract: Surface modified substrates and related methods are provided. A substrate having a modified surface comprises a first region and a second region. The first region is located above the second region. The first region comprises a nickel fluoride. The second region comprises a nickel alloy. A concentration of the nickel fluoride gradually decreases from the first region to the second region.
    Type: Application
    Filed: July 26, 2024
    Publication date: January 30, 2025
    Inventors: Carlo Waldfried, Surendra Maharjan, Stephen Longo
  • Publication number: 20240344195
    Abstract: Described are coatings that contain of fluorinated yttrium oxide and a metal oxide; methods of preparing these coatings; substrates, surfaces, equipment, and components of equipment that include a coating that contains a combination of fluorinated yttrium oxide and a metal oxide; and methods of preparing and using the coatings and coated substrates.
    Type: Application
    Filed: June 24, 2024
    Publication date: October 17, 2024
    Inventors: Carlo Waldfried, Stephen Longo
  • Patent number: 12031212
    Abstract: Described are yttrium fluoride compositions, including deposited films, e.g., coatings, that contain yttrium fluoride; methods of preparing yttrium fluoride compositions and deposited film coatings that contain yttrium fluoride; as well as substrates that have a deposited film coating that contains yttrium fluoride at a surface and methods and equipment that include the substrates.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: July 9, 2024
    Assignee: ENTEGRIS, INC.
    Inventors: Carlo Waldfried, Stephen Longo, Parul Tyagi
  • Publication number: 20220010426
    Abstract: Described are coatings that contain of fluorinated yttrium oxide and a metal oxide; methods of preparing these coatings; substrates, surfaces, equipment, and components of equipment that include a coating that contains a combination of fluorinated yttrium oxide and a metal oxide; and methods of preparing and using the coatings and coated substrates.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 13, 2022
    Inventors: Carlo WALDFRIED, Stephen LONGO
  • Publication number: 20210317572
    Abstract: Described are yttrium fluoride compositions, including deposited films, e.g., coatings, that contain yttrium fluoride; methods of preparing yttrium fluoride compositions and deposited film coatings that contain yttrium fluoride; as well as substrates that have a deposited film coating that contains yttrium fluoride at a surface and methods and equipment that include the substrates.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 14, 2021
    Inventors: Carlo WALDFRIED, Stephen LONGO, Parul TYAGI
  • Patent number: 8186311
    Abstract: A leash assembly designed to attach at least one waste holding device, such as a plastic bag, in such a manner that the plastic bag is able to swivel about and not get tangled as the dog moves from side to side. This eliminates the need of the person walking the dog to constantly move the leash from one hand to the other hand in order to prevent the waste bag from getting tangled. In other words, as the dog move in different directions the waste bag holding device is able to adjust its' position by swiveling about the device attached to the leash allowing the walker to have their hands free. The swivel can also be adapted to hold other items such as keys, extra bags for dog cleanup and hand wipes. All of these items would also be able to swivel about the device.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: May 29, 2012
    Inventor: Stephen Longo
  • Publication number: 20100326370
    Abstract: A leash assembly designed to attach at least one waste holding device, such as a plastic bag, in such a manner that the plastic bag is able to swivel about and not get tangled as the dog moves from side to side. This eliminates the need of the person walking the dog to constantly move the leash from one hand to the other hand in order to prevent the waste bag from getting tangled. In other words, as the dog move in different directions the waste bag holding device is able to adjust its' position by swiveling about the device attached to the leash allowing the walker to have their hands free. The swivel can also be adapted to hold other items such as keys, extra bags for dog cleanup and hand wipes. All of these items would also be able to swivel about the device.
    Type: Application
    Filed: December 9, 2009
    Publication date: December 30, 2010
    Inventor: Stephen Longo
  • Publication number: 20080000431
    Abstract: A leash assembly designed to attach at least one waste holding device, such as a plastic bag, in such a manner that the plastic bag is able to swivel about and not get tangled as the dog moves from side to side. This eliminates the need of the person walking the dog to constantly move the leash from one hand to the other hand in order to prevent the waste bag from getting tangled. In other words, as the dog move in different directions the waste bag holding device is able to adjust its' position by swiveling about the device attached to the leash allowing the walker to have their hands free. The swivel can also be adapted to hold other items such as keys, extra bags for dog cleanup and hand wipes. All of these items would also be able to swivel about the device.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventor: Stephen Longo