Patents by Inventor Sithya S. Khieu

Sithya S. Khieu 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: 20240117138
    Abstract: Disclosed are polymeric foamed compositions, foam padded materials that include such polymeric foamed compositions disposed on a sheet material, and packaging articles (e.g., envelopes) made from such foam padded materials. The polymeric foamed composition on the sheet material has a plurality of foamed structures formed from the foamable composition attached to the sheet material by a layer of the foamable composition, and the plurality foam structures each having a hollow core and a foam exterior shell.
    Type: Application
    Filed: February 1, 2022
    Publication date: April 11, 2024
    Inventors: Yaohua Gao, Stephen M. Sanocki, Sithya S. Khieu, Ignatius A. Kadoma, Cory D. Sauer, Tien Yi T.H. Whiting, Mitchell A.F. Johnson, Jeffrey P. Kalish, Daniel L. Schlosser, Michael Brett Runge, Matt R. Branscomb
  • Publication number: 20230150741
    Abstract: The present application relates to compostable articles and compositions including at least one biodegradable polymer and a hydrophobic agent. In some embodiments, the compostable articles and compositions include a second biodegradable polymer, different from the first biodegradable polymer. In some embodiments, the first biodegradable polymer is selected from the group consisting of polyethylene succinate) (PES), poly(trimethylene succinate) (PTS), poly(butylene succinate) (PBS), poly(butylene succinate co-butylene adipate) (PBS A), poly(butylene adipate co-terephthalate) (PBAT), poly(tetramethylene adipate-co-terephthalate) (PTAT), and thermoplastic starch. In some embodiments, the presently described articles include packaging.
    Type: Application
    Filed: April 14, 2021
    Publication date: May 18, 2023
    Inventors: Ignatius A. Kadoma, Sithya S. Khieu, Rajdeep S. Kalgutkar, Stephen M. Sanocki, Yaohua Gao, Annabelle Watts, Satinder K. Nayar, Verlin W. Schelhaas, Timothy J. Rowell, Jeffrey E. Zelinsky, Kimberly C.M. Schultz, Lori-Ann S. Prioleau, Kenneth P. Morris
  • Publication number: 20220052559
    Abstract: A device is described having one or more conductive loops to produce an electromagnetic field, such as for wireless power transfer to an electronic device. In some examples, an antenna is used with at least one resonating capacitor ring that is relatively co-planar with the antenna, and that is magnetically coupled to the antenna but is not electrically powered by an external source. In addition, a device is described having two or more thin-film coils, each coil comprising a pair of terminals and at least one loop defining a plane and an interior region. In some examples, the planes of the two or more coils are disposed substantially parallel to one another, the interior regions of the two or more coils at least partially overlap one another, and the pairs of terminals of the antennae are electrically connected in parallel.
    Type: Application
    Filed: December 13, 2019
    Publication date: February 17, 2022
    Inventors: Zohaib Hameed, Jaewon Kim, Sithya S. Khieu
  • Publication number: 20220009690
    Abstract: The present disclosure relates to crush resistant packaging materials and/or constructions and to methods of making and using them. Many embodiments provide crush resistance in addition to customizability.
    Type: Application
    Filed: November 18, 2019
    Publication date: January 13, 2022
    Inventors: Manoj Nirmal, Patrick R. Fleming, Thomas R.J. Corrigan, Lisa M. Miller, James R. Prell, Sithya S. Khieu, Daniel J. Hoyord, Connor M. Pelletier-Sutton
  • Publication number: 20210268710
    Abstract: Coextruded polymeric article comprising first segments each having first and second opposed major surfaces and a thickness, the first segments comprising first material; second segments comprising second material, wherein adjacent first segments are joined together via a second segment, wherein at least 10 percent by number of the second segments extend from the second major surface past the first major surface of each first adjacent segment and has a distal end, the second segments having first and second opposed major surfaces, wherein there is a gap between adjacent second segments; and adhesive on the first and second major surfaces of at least every other second segment except a portion of the major surface adjacent to the respective distal end is free of the adhesive, wherein the first segments, second segments, and adhesive each extend continuously for at least 5 mm. Uses for coextruded polymeric articles described herein include adhesive articles and household cleaning products (e.g.
    Type: Application
    Filed: June 21, 2019
    Publication date: September 2, 2021
    Inventors: Ronald W. Ausen, William J. Kopecky, Vasav Sahni, Sithya S. Khieu, Shannon R. A. Harnden, Mary M. Caruso Dailey
  • Patent number: 9837001
    Abstract: A signage overlay article includes a polymeric substrate having a thickness in a range from 75 to 1000 micrometers, an optically active sign sheeting fixed to the polymeric substrate, and a pressure sensitive adhesive layer adhered to the polymeric substrate. The pressure sensitive adhesive layer has a thickness in a range from 350 to 3000 micrometers.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 5, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Sithya S. Khieu, David C. May
  • Publication number: 20150348454
    Abstract: A signage overlay article includes a polymeric substrate having a thickness in a range from 75 to 1000 micrometers, an optically active sign sheeting fixed to the polymeric substrate, and a pressure sensitive adhesive layer adhered to the polymeric substrate. The pressure sensitive adhesive layer has a thickness in a range from 350 to 3000 micrometers.
    Type: Application
    Filed: March 13, 2013
    Publication date: December 3, 2015
    Inventors: Sithya S. Khieu, David C. May
  • Publication number: 20140259830
    Abstract: A multi-panel sign system including first and second panels, and an adhesive-based fastener. The panels include a panel body and complimentary, first and second interlock structures. The panel body defines a front face for maintaining indicia, and first and second sides. The first and second interlock structures are located adjacent the first and second sides, respectively, and project opposite the front face. In an assembled stated, the first interlock structure of the first panel mechanically locks with the second interlock structure of the second panel to establish a interlocked joint, and the adhesive-based fastener is bonded to the first and second panels. The interlocked joint robustly maintains the panels relative to one another, whereas the adhesive-based fastener serves to prevent inadvertent sliding of the panels. Optically active sheeting can be applied to the front face of the panels, and desired indicia applied to the sheeting.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Sithya S. Khieu, David C. May
  • Publication number: 20100299984
    Abstract: The present application relates to a sign including: (1) a sign blank including multiple first interlockable members; and (2) optically active sheeting including multiple second interlockable members; wherein the first and second matable members interlock with one another to hold the sign blank and the sheeting together.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Inventors: Sithya S. Khieu, David C. May
  • Patent number: 6861141
    Abstract: A pavement marking article that has an adhesive composition for adhering the article to a pavement substrate, where the adhesive composition includes a reaction product of an acrylic acid ester of a monohydric alcohol whose homopolymer has a Tg less than 0° C., a non-polar ethylenically unsaturated monomer, and 0-10 parts by weight of a polar ethylenically unsaturated monomer. Preferably the amount of the acrylic acid ester is about 60-90 parts by weight, and the amount of the non-polar ethylenically unsaturated monomer is about 10-40 parts by weight. Also, a raised pavement marker that comprises: (a) a pavement marker body having upper and lower surfaces and an apparent flexural modulus of at least about 50,000 psi and (b) a pressure sensitive adhesive layer disposed upon the lower surface of the marker, wherein the adhesive has: (i) a transition region that begins at a frequency of about 10,000 radians/s or more and extends to a frequency of about 100 radians/s or less at about 25° C.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: March 1, 2005
    Inventors: Gina M. Buccellato, Cristina U. Thomas, Bimal V. Thakkar, Greggory S. Bennett, Sithya S. Khieu, Gary R. Miron
  • Publication number: 20040247819
    Abstract: An insulation blanket comprises (a) substantially hydrophobic insulation material; and (b) high temperature-resistant material; with the proviso that the blanket is casing-free.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 9, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Sithya S. Khieu, Richard M. Pieper, Thomas L. Tompkins
  • Publication number: 20040021312
    Abstract: The invention relates to adhesive security labels that indicate tampering.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 5, 2004
    Inventors: Timothy M. Dietz, Sithya S. Khieu, Mark D. Weigel
  • Publication number: 20030198814
    Abstract: The invention relates to retroreflective sheeting and articles suitable for pavement marking comprising a retroreflective layer and a thin continuous hardcoat layer comprising an inorganic oxide material or diamond-like carbon material on the outermost exposed surface. Preferably, at least one intermediate layer is provided between the retroreflective layer and hardcoat layer.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 23, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Sithya S. Khieu, Gregory E. Gilligan, Moses M. David
  • Publication number: 20030123930
    Abstract: A method for making a magnetic pavement marker having an array of magnetic pavement elements arranged in a predefined pattern interconnected by a carrier web. After the array of magnetic pavement elements is applied to the pavement surface, the portion of the carrier web surrounding the magnetic pavement elements is removed or allowed to substantially deteriorate and dissipate, leaving an array of discrete, magnetic pavement elements.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 3, 2003
    Inventors: Gregory F. Jacobs, Robert L. Keech, Sithya S. Khieu, Howard R. Tolliver, Thomas R. Borden
  • Publication number: 20030123931
    Abstract: A method of making a pavement marker including the steps of forming an array of pavement elements in a predefined pattern interconnected by a carrier web. A frangible connection is formed between a plurality of the pavement elements and the carrier web. After the array of pavement elements is applied to the pavement surface using an adhesive, a portion of the carrier web surrounding the pavement elements is removed or allowed to substantially deteriorate and dissipate, leaving an array of discrete pavement elements.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 3, 2003
    Inventors: Sithya S. Khieu, Howard R. Tolliver, Thomas R. Borden
  • Publication number: 20030091815
    Abstract: A pavement marking article that has an adhesive composition for adhering the article to a pavement substrate, where the adhesive composition includes a reaction product of an acrylic acid ester of a monohydric alcohol whose homopolymer has a Tg less than 0° C., a non-polar ethylenically unsaturated monomer, and 0-10 parts by weight of a polar ethylenically unsaturated monomer. Preferably the amount of the acrylic acid ester is about 60-90 parts by weight, and the amount of the non-polar ethylenically unsaturated monomer is about 10-40 parts by weight.
    Type: Application
    Filed: August 22, 2002
    Publication date: May 15, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Gina M. Buccellato, Cristina U. Thomas, Bimal V. Thakkar, Greggory S. Bennett, Sithya S. Khieu, Gary R. Miron
  • Patent number: 6551014
    Abstract: The present disclosure relates to improved raised pavement markers having a totally-internal-reflective lens. The disclosure also relates to methods of manufacturing the raised pavement marker. The raised pavement markers described below include a housing connected to a totally-internal-reflective lens. The totally-internal-reflective lens includes a retroreflective element having a smooth surface generally opposite a plurality of cube corner elements. A film is attached to the retroreflective element at the apexes of the cube corner elements to form spaces, i.e., an air gap, between the film and the cubes. The film and retroreflective element cooperate to form the totally-internal-reflective lens. Light entering the retroreflective element through the smooth surface is retroreflected at the cube/air interface. Methods of manufacturing include, for example, forming a shell with the retroreflective element and attaching the film to the apexes of the cube corner elements.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: April 22, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Sithya S. Khieu, Gregory E. Gilligan, Thomas R. Borden
  • Patent number: 6511259
    Abstract: When mounted to a vehicle, a dispenser ejects optical elements so that they have a component of movement that is parallel with the surface of the pavement to which the optical elements are to be applied. Preferably, the component of movement in that direction is more significant than a component of movement directly toward the pavement surface. A fluid assist causes the optical elements to be ejected from the dispenser nozzle at a velocity to at least partially counteract, and preferably match, the forward velocity of movement of the vehicle to which the dispenser is attached. Thus, in accordance with one specific aspect of the present invention, optical elements can be laid down upon marking material that has been applied to a pavement surface at a substantially reduced relative velocity to the road surface.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: January 28, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Sithya S. Khieu, Mark D. Zender, David C. May, John L. Marty
  • Publication number: 20020004135
    Abstract: A pavement marking article that has an adhesive composition for adhering the article to a pavement substrate, where the adhesive composition includes a reaction product of an acrylic acid ester of a monohydric alcohol whose homopolymer has a Tg less than 0° C., a non-polar ethylenically unsaturated monomer, and 0-10 parts by weight of a polar ethylenically unsaturated monomer. Preferably the amount of the acrylic acid ester is about 60-90 parts by weight, and the amount of the non-polar ethylenically unsaturated monomer is about 10-40 parts by weight.
    Type: Application
    Filed: April 29, 1998
    Publication date: January 10, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: GINA M. BUCCELLATO, CRISTINA U. THOMAS, BIMAL V. THAKKAR, GREGGORY S. BENNETT, SITHYA S. KHIEU, GARY R. MIRON
  • Publication number: 20010048847
    Abstract: The present disclosure relates to improved raised pavement markers having a totally-internal-reflective lens. The disclosure also relates to methods of manufacturing the raised pavement marker. The raised pavement markers described below include a housing connected to a totally-internal-reflective lens. The totally-internal-reflective lens includes a retroreflective element having a smooth surface generally opposite a plurality of cube corner elements. A film is attached to the retroreflective element at the apexes of the cube corner elements to form spaces, i.e., an air gap, between the film and the cubes. The film and retroreflective element cooperate to form the totally-internal-reflective lens. Light entering the retroreflective element through the smooth surface is retroreflected at the cube/air interface. Methods of manufacturing include, for example, forming a shell with the retroreflective element and attaching the film to the apexes of the cube corner elements.
    Type: Application
    Filed: February 7, 2001
    Publication date: December 6, 2001
    Applicant: 3M Innovative Properties Company
    Inventors: Sithya S. Khieu, Gregory E. Gilligan, Thomas R. Borden