Patents by Inventor Alexandra Piotrowicz

Alexandra Piotrowicz 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).

  • SURFACES HAVING LUBRICIOUS OR LOW FRICTION PROPERTIES
    Publication number: 20230338621
    Abstract: An article having a low friction surface containing an oligofluorinated additive admixed with a base polymer is disclosed.
    Type: Application
    Filed: September 24, 2021
    Publication date: October 26, 2023
    Applicant: Evonik Canada Inc.
    Inventors: Alexandra Piotrowicz, Antonio Cillero Rodrigo, Jiaqing Zuo, Jeannette Ho
  • SURFACES RESISTANT TO BACTERIAL ADHESION
    Publication number: 20210268543
    Abstract: The invention features surfaces formed from a base polymer admixed with an additive of the invention. The surfaces can be resistant to bacterial adhesion. The surfaces of the invention can be applied to: (a) any medical device or material that is implanted in or juxtaposed to a human or animal tissue or body fluid, in vivo or ex vivo, permanently or for a short period, and (b) any useful article, material or device, medical or not, which is to maintain a human or animal health-safe unfouled state of cleanliness over a period of time. In these medical and non-medical applications it is known that undesirable fouling phenomenon can take place which might harm a patient, user or consumer of the compromised device, equipment or material processed by, transported or stored in contamination prone articles, equipment or environments. Such fouling phenomena include biofilm development and bacterial colony development.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 2, 2021
    Inventors: Alexandra Piotrowicz, Kyle William Macdonald, Antonio Cillero Rodrigo, Sanjoy Mullick, Jamie Robert Swenor, J. Paul Santerre, Jeannette Ho
  • THERMALLY STABLE BIURET AND ISOCYANURATE BASED SURFACE MODIFYING MACROMOLECULES AND USES THEREOF
    Publication number: 20200165376
    Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Inventors: Sanjoy Mullick, Weilun Chang, Alexandra Piotrowicz, Jeannette Ho, Richard Witmeyer
  • THERMALLY STABLE BIURET AND ISOCYANURATE BASED SURFACE MODIFYING MACROMOLECULES AND USES THEREOF
    Publication number: 20180179327
    Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.
    Type: Application
    Filed: August 1, 2017
    Publication date: June 28, 2018
    Inventors: Sanjoy MULLICK, Weilun CHANG, Alexandra PIOTROWICZ, Jeannette HO, Richard WITMEYER
  • Thermally stable biuret and isocyanurate based surface modifying macromolecules and uses thereof
    Patent number: 9751972
    Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: September 5, 2017
    Assignee: Interface Biologic Inc.
    Inventors: Sanjoy Mullick, Weilun Chang, Alexandra Piotrowicz, Jeannette Ho, Richard Witmeyer
  • Thermoplastic polyurethane admixtures
    Patent number: 9744269
    Abstract: The invention relates to admixtures of thermoplastic polyurethane base polymers that resist surface dulling and fluorinated additives and their use in the manufacture of articles, such as medical devices. For example, the admixtures of the invention are useful in the manufacture of blood dwelling medical devices, such as catheters.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: August 29, 2017
    Assignees: Interface Biologics, Inc., AngioDynamics, Inc.
    Inventors: J. Paul Santerre, Jeannette Ho, Alexandra Piotrowicz, Roseita Esfand, Raymond Lareau, Benjamin Bell
  • THERMOPLASTIC POLYURETHANE ADMIXTURES
    Publication number: 20160310641
    Abstract: The invention relates to admixtures of thermoplastic polyurethane base polymers that resist surface dulling and fluorinated additives and their use in the manufacture of articles, such as medical devices. For example, the admixtures of the invention are useful in the manufacture of blood dwelling medical devices, such as catheters.
    Type: Application
    Filed: November 20, 2015
    Publication date: October 27, 2016
    Inventors: J. Paul SANTERRE, Jeannette HO, Alexandra PIOTROWICZ, Roseita ESFAND, Raymond LAREAU, Benjamin BELL
  • Thermoplastic polyurethane admixtures
    Patent number: 9206283
    Abstract: The invention relates to admixtures of thermoplastic polyurethane base polymers that resist surface dulling and fluorinated additives and their use in the manufacture of articles, such as medical devices. For example, the admixtures of the invention are useful in the manufacture of blood dwelling medical devices, such as catheters.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 8, 2015
    Assignees: AngioDynamics, Inc., Interface Biologics, Inc.
    Inventors: J. Paul Santerre, Jeannette Ho, Alexandra Piotrowicz, Roseita Esfand, Raymond Lareau, Benjamin Bell
  • THERMALLY STABLE BIURET AND ISOCYANURATE BASED SURFACE MODIFYING MACROMOLECULES AND USES THEREOF
    Publication number: 20150025198
    Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.
    Type: Application
    Filed: February 24, 2014
    Publication date: January 22, 2015
    Applicant: Interface Biologics Inc.
    Inventors: Sanjoy MULLICK, Weilun CHANG, Alexandra PIOTROWICZ, Jeannette HO, Richard WITMEYER
  • Thermally stable biuret and isocyanurate based surface modifying macromolecules and uses thereof
    Patent number: 8318867
    Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: November 27, 2012
    Assignee: Interface Biologics, Inc.
    Inventors: Sanjoy Mullick, Weilun Chang, Alexandra Piotrowicz, Jeannette Ho, Richard Witmeyer
  • THERMALLY STABLE BIURET AND ISOCYANURATE BASED SURFACE MODIFYING MACROMOLECULES AND USES THEREOF
    Publication number: 20120148774
    Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 14, 2012
    Applicant: Interface Biologics Inc.
    Inventors: Sanjoy MULLICK, Weilun CHANG, Alexandra PIOTROWICZ, Jeannette HO, Richard WITMEYER
  • THERMALLY STABLE BIURET AND ISOCYANURATE BASED SURFACE MODIFYING MACROMOLECULES AND USES THEREOF
    Publication number: 20110207893
    Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.
    Type: Application
    Filed: August 28, 2009
    Publication date: August 25, 2011
    Applicant: INTERFACE BIOLOGIS INC.
    Inventors: Sanjoy Mullick, Weilun Chang, Alexandra Piotrowicz, Jeannette Ho, Richard Witmeyer