Patents by Inventor Sudhakar Puvvada

Sudhakar Puvvada 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: 20230340726
    Abstract: Processes and apparatus for dyeing a textile product are provided whereby an undyed textile product is introduced into a substantially anaerobic dyeing chamber having an oxygen content of less than 1000 ppm oxygen therein, and at least two dye mixtures having a differential dye exhaustion rate of at least 10% are applied onto the textile product within the substantially anaerobic dying chamber. Thereafter the dyed textile product may be exposed to an oxygen-containing atmosphere so as to oxidize the applied dyes. At least one of the dyes may have a dye exhaustion rate of at least about 25%, or even at least about 50%. The embodiments herein are especially adapted to dyeing of textile products whereby one dye in the at least two dye mixtures is a sulfur dye and another dye in the at least two dye mixtures is a leuco indigo dye.
    Type: Application
    Filed: January 12, 2021
    Publication date: October 26, 2023
    Inventors: Vince LOY, Howard MALPASS, Ralph THARPE, M. Dean ETHRIDGE, Sudhakar PUVVADA
  • Publication number: 20230255281
    Abstract: The presently disclosed subject matter relates generally to a treatment garment for use in clothed radiation treatment and diagnosis procedures, and methods of using the garment.
    Type: Application
    Filed: April 24, 2023
    Publication date: August 17, 2023
    Applicant: The Moses H. Cone Memorial Hospital Operating Corporation
    Inventors: Benjamin Jeremiah Sintay, Sudhakar Puvvada, Thomas Lane Hayes, David Brian Wiant, Nicholas Corey Koch
  • Publication number: 20230193038
    Abstract: The present disclosure provides methods for digital printing using modified indigo dye compounds.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 22, 2023
    Inventors: Sudhakar Puvvada, Dennis Scheer, Paul Gerard Hoertz
  • Publication number: 20220127785
    Abstract: Systems and methods are described whereby a deoxygenated liquid dye material is made by supplying the deoxygenated inert gas to a liquid dye material that is susceptible to oxidation, and mixing the liquid dye material in the presence of the supplied deoxygenated inert gas with water and at least one dye formulation component selected from the group consisting of reducing agents, pH adjusters, foaming agents, wetting agents and auxiliary chemicals to form a deoxygenated aqueous dye composition having an oxygen content of 30 ppm oxygen or less. A supply of inert gas may be provided which is then passed to a gas purifier to reduce oxygen content in the inert gas to, e.g., 1 ppb oxygen or less. The deoxygenated aqueous dye composition that is formed may have an oxygen content of 1 ppm or less.
    Type: Application
    Filed: January 16, 2020
    Publication date: April 28, 2022
    Inventors: Howard MALPASS, Ralph THARPE, M. Dean ETHRIDGE, Sudhakar PUVVADA, Vince LOY
  • Publication number: 20210403718
    Abstract: The present disclosure provides dye compounds for use in dyeing textiles.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 30, 2021
    Applicant: The H.D. Lee Company, Inc.
    Inventors: Sudhakar Puvvada, Dennis Scheer, Paul Gerard Hoertz, Amsarani Ramamoorthy, Rajeev Rajbhandari, Caroline Elizabeth Hagerman, Alexander Peter Dirk Massey, Alexander Mark Hellawell, Asadollah Fallah, Ruhksana Quyoum
  • Patent number: 11208559
    Abstract: The present disclosure provides dye compounds for use in dyeing textiles.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: December 28, 2021
    Assignee: The H.D. Lee Company, Inc.
    Inventors: Sudhakar Puvvada, Dennis Scheer, Paul Gerard Hoertz, Amsarani Ramamoorthy, Rajeev Rajbhandari, Caroline Elizabeth Hagerman, Alexander Peter Dirk Massey, Alexander Mark Hellawell, Asadollah Fallah, Ruhksana Quyoum
  • Publication number: 20210189643
    Abstract: The present disclosure provides methods of foam and spray dyeing using modified indigo dye compounds.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 24, 2021
    Inventors: Sudhakar Puvvada, Dennis Scheer, Paul Gerard Hoertz
  • Publication number: 20210145090
    Abstract: The presently disclosed subject matter relates generally to a treatment garment for use in clothed radiation treatment and diagnosis procedures, and methods of using the garment.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 20, 2021
    Applicant: The Moses H. Cone Memorial Hospital Operating Corporation
    Inventors: Benjamin Jeremiah Sintay, Sudhakar Puvvada, Thomas Lane Hayes, David Brian Wiant, Nicholas Corey Koch
  • Publication number: 20190256710
    Abstract: The present disclosure provides dye compounds for use in dyeing textiles.
    Type: Application
    Filed: June 22, 2017
    Publication date: August 22, 2019
    Inventors: Sudhakar PUVVADA, Dennis SCHEER, Paul Gerard HOERTZ, Amsarani RAMAMOORTHY, Rajeev RAJBHANDARI, Caroline Elizabeth HAGERMAN, Alexander Peter Dirk MASSEY, Alexander Mark HELLAWELL, Asadollah FALLAH, Ruhksana QUYOUM
  • Publication number: 20190194464
    Abstract: The present disclosure provides dye compounds for use in dyeing textiles.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Inventors: Sudhakar Puvvada, Dennis Scheer, Paul Gerard Hoertz
  • Publication number: 20190100872
    Abstract: Provided are methods for treating garments so as to improve color contrast, darkness, or both. Also provided are systems for treating garments as well as garments made according to the disclosed methods.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 4, 2019
    Inventors: Sudhakar PUVVADA, Dennis SCHEER, Paul G. HOERTZ, Rajeev RAJBHANDARI, Akash PARDESHI
  • Publication number: 20180313026
    Abstract: Methods for treating a garment include: prewashing the garment; drying the garment in a first drying process; spraying a functional chemical onto the dried garment; and applying a curing treatment to the garment to cure the functional chemical. The method may further include drying the garment in a second drying process after spraying the functional chemical onto the garment.
    Type: Application
    Filed: May 1, 2018
    Publication date: November 1, 2018
    Inventors: Rajeev Rajbhandari, Phillip Aydelette, Dennis Scheer, Sudhakar Puvvada, Amsarani Ramamoorthy, Akash Pardeshi
  • Patent number: 7838479
    Abstract: The invention relates to a cleansing composition product having at least one acid phase and at least one soap phase that are separated. The inventive composition is contained in a partitioned container in one embodiment and a partitionless container in another embodiment. This multiphase composition is stable upon storage and in a further embodiment is dispensed as a striped product where typically lather is reduced upon blending and a fatty acid is deposited onto the skin.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: November 23, 2010
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Shuman Mitra, Sudhakar Puvvada
  • Publication number: 20100139712
    Abstract: A laundry detergent system comprising a highly concentrated liquid laundry detergent and a device connected to a water supply feed, that provides the injection pressure of the detergent composition being greater than water flow pressure at the junction of the detergent composition and the water flow and water flow rate at the junction of greater than 0.25 m/sec; wherein the flow rate ratio of the detergent composition to the water flow is in the range of from about 0.0001 to about 0.5.
    Type: Application
    Filed: February 16, 2010
    Publication date: June 10, 2010
    Applicant: The Sun Products Corporation
    Inventors: Feng-Lung Gordon Hsu, Sudhakar Puvvada, Mei Shi
  • Patent number: 7481081
    Abstract: A non-intrusive device for automatically dosing at least one liquid laundry care composition to an automatic laundry washing machine. The device employs a Venturi tube mechanism or a pump to dose the laundry detergent care composition. The dosing is controlled by a machine-generic algorithm capable of determining the actual cycle at any duration of wash for various cycle designs from various washing machines, without the input of precise cycle design; and dose the correct products correctly and is capable of distinguishing between major water addition and a water pulse.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: January 27, 2009
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Feng-Lung Gordon Hsu, Sudhakar Puvvada, Gary Hsu
  • Patent number: 7398787
    Abstract: A non-intrusive device for automatically dosing at least one liquid laundry care composition to an automatic laundry washing machine. The device employs a Venturi tube mechanism or a pump to dose the laundry detergent care composition. The dosing is controlled by a machine-generic algorithm capable of determining the actual cycle at any duration of wash for various cycle designs from various washing machines, without the input of precise cycle design; and dose the correct products correctly and is capable of distinguishing between major water addition and a water pulse.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: July 15, 2008
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Feng-Lung Gordon Hsu, Sudhakar Puvvada, Ronald Frederick Vogel, Diane Wolf, Gary Hsu
  • Publication number: 20070111914
    Abstract: A method of washing laundry, the method comprising washing laundry in an aqueous medium with two separate compositions: a laundry detergent composition comprising from about 1% to about 80% of an alkoxylated ester surfactant and a rinse aid composition comprising from about 0.001% to about 100% of a carboxylic ester hydrolase enzyme, to result in the substantial reduction of foaming. Laundry kits based on the two compositions are also described.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 17, 2007
    Inventors: Feng-Lung Hsu, Ozgur Akcan, Sudhakar Puvvada, Myongsuk Bae-Lee
  • Publication number: 20060277953
    Abstract: A laundry detergent system comprising a highly concentrated liquid laundry detergent and a device connected to a water supply feed, that provides the injection pressure of the detergent composition being greater than water flow pressure at the junction of the detergent composition and the water flow and water flow rate at the junction of greater than 0.25 m/sec; wherein the flow rate ratio of the detergent composition to the water flow is in the range of from about 0.0001 to about 0.5.
    Type: Application
    Filed: June 8, 2005
    Publication date: December 14, 2006
    Inventors: Feng-Lung Hsu, Sudhakar Puvvada, Mei Shi
  • Publication number: 20060272360
    Abstract: A non-intrusive device for automatically dispensing at least one liquid laundry care composition to an automatic laundry washing machine. The device employs a Venturi tube mechanism or a pump to dose the laundry detergent care composition. The dosing is either manually controlled or controlled by a machine-generic algorithm capable of determining the actual cycle at any duration of wash for various cycle designs from various washing machines, without the input of precise cycle design; and dose the correct products correctly and is capable of distinguishing between major water addition and a water pulse.
    Type: Application
    Filed: June 2, 2005
    Publication date: December 7, 2006
    Inventors: Feng-Lung Hsu, Sudhakar Puvvada, Vincent Mole
  • Publication number: 20060107705
    Abstract: A non-intrusive device for automatically dosing at least one liquid laundry care composition to an automatic laundry washing machine. The device employs a Venturi tube mechanism or a pump to dose the laundry detergent care composition. The dosing is controlled by a machine-generic algorithm capable of determining the actual cycle at any duration of wash for various cycle designs from various washing machines, without the input of precise cycle design; and dose the correct products correctly and is capable of distinguishing between major water addition and a water pulse.
    Type: Application
    Filed: November 23, 2004
    Publication date: May 25, 2006
    Inventors: Feng-Lung Hsu, Sudhakar Puvvada, Gary Hsu