Patents by Inventor David A. Love
David A. Love 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: 20240307881Abstract: A device for manipulating microdroplets using optically-mediated electrowetting comprising: a first composite wall comprising: a first transparent substrate; a first transparent conductor layer on the substrate having a thickness of 70 to 250 nm; a photoactive layer activated by electromagnetic radiation in the wavelength range 400-1000 nm on the conductor layer having a thickness of 300-1000 nm; and a first dielectric layer on the conductor layer having a thickness of 120-160 nm; a second composite wall comprised of: a second substrate; a second conductor layer on the substrate having a thickness of 70 to 250 nm; and an A/C source to provide a voltage across the first and second composite walls connecting the first and second conductor layers; at least one source of electromagnetic radiation having an energy higher than the bandgap of the photoexcitable layer; and means for manipulating the points of impingement of the electromagnetic radiation on the photoactive layer.Type: ApplicationFiled: May 28, 2024Publication date: September 19, 2024Applicant: LIGHTCAST DISCOVERY LTDInventors: Thomas Henry ISAAC, Pedro CUNHA, Eoin SHERIDAN, David LOVE, Rebecca PALMER, Douglas J. KELLY, Gareth PODD
-
Publication number: 20240309118Abstract: The present disclosure provides methods of controlling the size of cellulose crystals by mixing a first composition comprising cellulose and coagulating this mixture with varying concentrations of hydrogen peroxide.Type: ApplicationFiled: May 24, 2024Publication date: September 19, 2024Inventors: David Salas de la Cruz, Xiao Hu, Stacy Love, David Verrill
-
Patent number: 12030055Abstract: A device comprising: a first zone comprising an attachment site; a first pathway; a second pathway and a means for creating a second medium comprised of aqueous microdroplets in a carrier; a microdroplet manipulation zone comprising: a first composite wall comprised of a first transparent substrate; a first transparent conductor layer on the substrate; a photoactive layer activated by electromagnetic radiation; and a first dielectric layer on the photoactive layer; a second composite wall comprised of a second substrate; a second conductor layer on the substrate; and optionally a second dielectric layer on the conductor layer; an A/C source; a source of first electromagnetic radiation; means for manipulating the points of impingement of the electromagnetic radiation on the photoactive layer; an detection zone disposed downstream of the microdroplet manipulation zone or integral therewith; and a fluorescence or Raman-scattering detection system.Type: GrantFiled: March 30, 2022Date of Patent: July 9, 2024Assignee: LIGHTCAST DISCOVERY LTDInventors: Thomas Henry Isaac, Pedro Cunha, Eoin Sheridan, David Love, Rebecca Palmer, Douglas J Kelly, Gareth Podd
-
Patent number: 12017224Abstract: A device for manipulating microdroplets using optically-mediated electrowetting comprising: a first composite wall comprising: a first transparent substrate; a first transparent conductor layer on the substrate having a thickness of 70 to 250 nm; a photoactive layer activated by electromagnetic radiation in the wavelength range 400-1000 nm on the conductor layer having a thickness of 300-1000 nm; and a first dielectric layer on the conductor layer having a thickness of 120-160 nm; a second composite wall comprised of: a second substrate; a second conductor layer on the substrate having a thickness of 70 to 250 nm; and an A/C source to provide a voltage across the first and second composite walls connecting the first and second conductor layers; at least one source of electromagnetic radiation having an energy higher than the bandgap of the photoexcitable layer; and means for manipulating the points of impingement of the electromagnetic radiation on the photoactive layer.Type: GrantFiled: October 19, 2022Date of Patent: June 25, 2024Assignee: LIGHTCAST DISCOVERY LTDInventors: Thomas Henry Isaac, Pedro Cunha, Eoin Sheridan, David Love, Rebecca Palmer, Douglas J. Kelly, Gareth Podd
-
Publication number: 20240125028Abstract: Indigo-dyed garments are treated with an anti-ozone agent to prevent ozone-related degradation of the garments before laser finishing. Without treatment, the garments can exhibit color loss (e.g., color change or fading) from exposure to ozone in the atmosphere. The indigo-dyed garments with anti-ozone treatment can serve as base templates in a laser finishing process flow. The anti-ozone treatment of the base templates can include a rinse including an ascorbic acid or vitamin C constituent during a base preparation process. Then quantities of these base templates can manufactured and stored for periods of time without exhibiting ozone-related degradation effects.Type: ApplicationFiled: July 18, 2023Publication date: April 18, 2024Inventors: James Barton Sights, David Love, Elizabeth O'Neill, Benjamin Bell, Jennifer Schultz, Christopher Schultz, Debdulal Mahanty, Sachith Devendra Samarasinghe, Chatura Atukorala, Jeff Zens
-
Publication number: 20240099408Abstract: Delayed finishing of apparel products, such as by way of laser finishing, allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of finishes. Operational efficiency is improved.Type: ApplicationFiled: December 5, 2023Publication date: March 28, 2024Inventors: James Barton James, David Love, Elizabeth O'Neill, Jeff Zens
-
Patent number: 11904319Abstract: A device for manipulating microdroplets using optically-mediated electrowetting comprising: a first composite wall comprising: a first transparent substrate; a first transparent conductor layer on the substrate having a thickness of 70 to 250 nm; a photoactive layer activated by electromagnetic radiation in the wavelength range 400-1000 nm on the conductor layer having a thickness of 300-1000 nm; and a first dielectric layer on the conductor layer having a thickness of 120-160 nm; a second composite wall comprised of: a second substrate; a second conductor layer on the substrate having a thickness of 70 to 250 nm; and an A/C source to provide a voltage across the first and second composite walls connecting the first and second conductor layers; at least one source of electromagnetic radiation having an energy higher than the bandgap of the photoexcitable layer; and means for manipulating the points of impingement of the electromagnetic radiation on the photoactive layer.Type: GrantFiled: September 3, 2021Date of Patent: February 20, 2024Assignee: LIGHTCAST DISCOVERY LTDInventors: Thomas Henry Isaac, Pedro Cunha, Eoin Sheridan, David Love, Rebecca Palmer, Douglas J. Kelly, Gareth Podd
-
Patent number: 11857014Abstract: Laser finishing of apparel products allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of laser finishes. Operational efficiency is improved.Type: GrantFiled: February 8, 2022Date of Patent: January 2, 2024Assignee: Levi Strauss & Co.Inventors: Elizabeth O'Neill, James Barton Sights, Jeff Zens, David Love
-
Using ascorbic acid or sodium ascorbate to extend storage life of base templates for laser finishing
Patent number: 11840788Abstract: Indigo-dyed garments are treated with an anti-ozone agent to prevent ozone-related degradation of the garments before laser finishing. Without treatment, the garments can exhibit color loss (e.g., color change or fading) from exposure to ozone in the atmosphere. The indigo-dyed garments with anti-ozone treatment can serve as base templates in a laser finishing process flow. The anti-ozone treatment of the base templates can include a rinse including an ascorbic acid or vitamin C constituent during a base preparation process. Then quantities of these base templates can manufactured and stored for periods of time without exhibiting ozone-related degradation effects.Type: GrantFiled: July 12, 2022Date of Patent: December 12, 2023Assignee: Levi Strauss & Co.Inventors: Chatura Atukorala, James Barton Sights, David Love, Elizabeth O'Neill, Jeff Zens, Benjamin Bell, Jennifer Schultz, Christopher Schultz, Debdulal Mahanty, Sachith Devendra Samarasinghe -
Patent number: 11832670Abstract: Laser finishing of apparel products allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of laser finishes. Operational efficiency is improved.Type: GrantFiled: February 8, 2022Date of Patent: December 5, 2023Assignee: Levi Strauss & Co.Inventors: Elizabeth O'Neill, James Barton Sights, Jeff Zens, David Love
-
Publication number: 20230380533Abstract: Laser finishing of apparel products allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of laser finishes. Operational efficiency is improved.Type: ApplicationFiled: August 11, 2023Publication date: November 30, 2023Inventors: James Barton Sights, David Love, Elizabeth O'Neill, Jeff Zens
-
Patent number: 11723426Abstract: Laser finishing of apparel products allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of laser finishes. Operational efficiency is improved.Type: GrantFiled: February 8, 2022Date of Patent: August 15, 2023Assignee: Levi Strauss & Co.Inventors: Elizabeth O'Neill, James Barton Sights, Jeff Zens, David Love
-
Patent number: 11702783Abstract: Indigo-dyed garments are treated with an anti-ozone agent to prevent ozone-related degradation of the garments before laser finishing. Without treatment, the garments can exhibit color loss (e.g., color change or fading) from exposure to ozone in the atmosphere. The indigo-dyed garments with anti-ozone treatment can serve as base templates in a laser finishing process flow. The anti-ozone treatment of the base templates can include a rinse including an ascorbic acid or vitamin C constituent during a base preparation process. Then quantities of these base templates can manufactured and stored for periods of time without exhibiting ozone-related degradation effects.Type: GrantFiled: April 12, 2022Date of Patent: July 18, 2023Assignee: Levi Strauss & Co.Inventors: Chatura Atukorala, James Barton Sights, David Love, Elizabeth O'Neill, Jeff Zens, Benjamin Bell, Jennifer Schultz, Christopher Schultz, Debdulal Mahanty, Sachith Devendra Samarasinghe
-
Publication number: 20230042172Abstract: A device for manipulating microdroplets using optically-mediated electrowetting comprising: a first composite wall comprising: a first transparent substrate; a first transparent conductor layer on the substrate having a thickness of 70 to 250 nm; a photoactive layer activated by electromagnetic radiation in the wavelength range 400-1000 nm on the conductor layer having a thickness of 300-1000 nm; and a first dielectric layer on the conductor layer having a thickness of 120-160 nm; a second composite wall comprised of: a second substrate; a second conductor layer on the substrate having a thickness of 70 to 250 nm; and an A/C source to provide a voltage across the first and second composite walls connecting the first and second conductor layers; at least one source of electromagnetic radiation having an energy higher than the bandgap of the photoexcitable layer; and means for manipulating the points of impingement of the electromagnetic radiation on the photoactive layer.Type: ApplicationFiled: October 19, 2022Publication date: February 9, 2023Applicant: LIGHTCAST DISCOVERY LTDInventors: Thomas Henry ISAAC, Pedro CUNHA, Eoin SHERIDAN, David LOVE, Rebecca PALMER, Douglas J. KELLY, Gareth PODD
-
Using Ascorbic Acid or Sodium Ascorbate to Extend Storage Life of Base Templates for Laser Finishing
Publication number: 20220349100Abstract: Indigo-dyed garments are treated with an anti-ozone agent to prevent ozone-related degradation of the garments before laser finishing. Without treatment, the garments can exhibit color loss (e.g., color change or fading) from exposure to ozone in the atmosphere. The indigo-dyed garments with anti-ozone treatment can serve as base templates in a laser finishing process flow. The anti-ozone treatment of the base templates can include a rinse including an ascorbic acid or vitamin C constituent during a base preparation process. Then quantities of these base templates can manufactured and stored for periods of time without exhibiting ozone-related degradation effects.Type: ApplicationFiled: July 12, 2022Publication date: November 3, 2022Inventors: Chatura Atukorala, James Barton Sights, David Love, Elizabeth O'Neill, Jeff Zens, Benjamin Bell, Jennifer Schultz, Christopher Schultz, Debdulal Mahanty, Sachith Devendra Samarasinghe -
Publication number: 20220232920Abstract: Laser finishing of apparel products allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of laser finishes. Operational efficiency is improved.Type: ApplicationFiled: February 8, 2022Publication date: July 28, 2022Inventors: Elizabeth O'Neill, James Barton Sights, Jeff Zens, David Love
-
Publication number: 20220235504Abstract: Indigo-dyed garments are treated with an anti-ozone agent to prevent ozone-related degradation of the garments before laser finishing. Without treatment, the garments can exhibit color loss (e.g., color change or fading) from exposure to ozone in the atmosphere. The indigo-dyed garments with anti-ozone treatment can serve as base templates in a laser finishing process flow. The anti-ozone treatment of the base templates can include a rinse including an ascorbic acid or vitamin C constituent during a base preparation process. Then quantities of these base templates can manufactured and stored for periods of time without exhibiting ozone-related degradation effects.Type: ApplicationFiled: April 12, 2022Publication date: July 28, 2022Inventors: Chatura Atukorala, James Barton Sights, David Love, Elizabeth O'Neill, Jeff Zens, Benjamin Bell, Jennifer Schultz, Christopher Schultz, Debdulal Mahanty, Sachith Devendra Samarasinghe
-
Publication number: 20220225716Abstract: Laser finishing of apparel products allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of laser finishes. Operational efficiency is improved.Type: ApplicationFiled: February 8, 2022Publication date: July 21, 2022Inventors: Elizabeth O'Neill, James Barton Sights, Jeff Zens, David Love
-
Publication number: 20220225715Abstract: Laser finishing of apparel products allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of laser finishes. Operational efficiency is improved.Type: ApplicationFiled: February 8, 2022Publication date: July 21, 2022Inventors: Elizabeth O'Neill, James Barton Sights, Jeff Zens, David Love
-
Publication number: 20220219173Abstract: A device comprising: a first zone comprising an attachment site; a first pathway; a second pathway and a means for creating a second medium comprised of aqueous microdroplets in a carrier; a microdroplet manipulation zone comprising: a first composite wall comprised of a first transparent substrate; a first transparent conductor layer on the substrate; a photoactive layer activated by electromagnetic radiation; and a first dielectric layer on the conductor layer; a second composite wall comprised of a second substrate; a second conductor layer on the substrate; and optionally a second dielectric layer on the conductor layer; an A/C source; a source of first electromagnetic radiation; means for manipulating the points of impingement of the electromagnetic radiation on the photoactive layer; an detection zone disposed downstream of the microdroplet manipulation zone or integral therewith; and a fluorescence or Raman-scattering detection system.Type: ApplicationFiled: March 30, 2022Publication date: July 14, 2022Applicant: LIGHTCAST DISCOVERY LTDInventors: Thomas Henry ISAAC, Pedro CUNHA, Eoin SHERIDAN, David LOVE, Rebecca PALMER, Douglas J KELLY, Gareth PODD