Patents by Inventor Estera Szwajcer

Estera Szwajcer 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: 20210180243
    Abstract: Provided is a process for the production of a dyed fabric using enzyme aggregates. In particular, provided is a process that comprises a step of providing a woven fabric that comprises a base layer and an additional layer which is located on at least one side of the fabric, wherein the yarns of the additional layer comprise fibers that are at least partially dyed, and a step of contacting the woven fabric with enzyme aggregates such as cross-linked enzyme aggregates (CLEAs), to remove at least part of the dye from at least the yarns of said additional layer. The disclosure also provides a fabric obtained with the process and garments including the fabric.
    Type: Application
    Filed: February 24, 2021
    Publication date: June 17, 2021
    Inventors: Jitka ERYILMAZ, Onur YUKSELEN, Ozgur COBANOGLU, Erdogan Baris OZDEN, Ertug ERKUS, Estera Szwajcer DEY, Cedric DICKO, Alixander PERZON
  • Patent number: 10934662
    Abstract: Provided is a process for the production of a dyed fabric using enzyme aggregates. In particular, provided is a process that comprises a step of providing a woven fabric that comprises a base layer and an additional layer which is located on at least one side of the fabric, wherein the yarns of the additional layer comprise fibers that are at least partially dyed, and a step of contacting the woven fabric with enzyme aggregates such as cross-linked enzyme aggregates (CLEAs), to remove at least part of the dye from at least the yarns of said additional layer. The disclosure also provides a fabric obtained with the process and garments including the fabric.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: March 2, 2021
    Assignee: Sanko Tekstil Isletmeleri San. Ve Tic. A.S.
    Inventors: Jitka Eryilmaz, Onur Yukselen, Ozgur Cobanoglu, Erdogan Baris Ozden, Ertug Erkus, Estera Szwajcer Dey, Cedric Dicko, Alixander Perzon
  • Publication number: 20170298565
    Abstract: Provided is a process for the production of a dyed fabric using enzyme aggregates. In particular, provided is a process that comprises a step of providing a woven fabric that comprises a base layer and an additional layer which is located on at least one side of the fabric, wherein the yarns of the additional layer comprise fibers that are at least partially dyed, and a step of contacting the woven fabric with enzyme aggregates such as cross-linked enzyme aggregates (CLEAs), to remove at least part of the dye from at least the yarns of said additional layer. The disclosure also provides a fabric obtained with the process and garments including the fabric.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 19, 2017
    Inventors: Jitka ERYILMAZ, Onur YUKSELEN, Ozgur COBANOGLU, Erdogan Baris OZDEN, Ertug ERKUS, Estera Szwajcer DEY, Cedric DICKO, Alixander PERZON
  • Patent number: 8377304
    Abstract: The present invention relates to a method for treatment of sludge in water purification, the method comprising the steps: providing an enzyme mixture comprising at least one enzyme capable of digesting natural polymeric materials; and adding the enzyme mixture and at least one chelating reagent, in optional order or simultaneously, to an aqueous sludge suspension.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: February 19, 2013
    Assignee: Kemira Oyj
    Inventors: Estera Szwajcer Dey, Olof Norrlöw
  • Publication number: 20100200499
    Abstract: The present invention relates to a method for treatment of sludge in water purification, the method comprising the steps: providing an enzyme mixture comprising at least one enzyme capable of digesting natural polymeric materials; and adding the enzyme mixture and at least one chelating reagent, in optional order or simultaneously, to an aqueous sludge suspension.
    Type: Application
    Filed: May 31, 2008
    Publication date: August 12, 2010
    Applicant: KEMIRA OYJ
    Inventors: Estera Szwajcer Dey, Olof Norrlow
  • Patent number: 7311835
    Abstract: The present invention relates to a method for supplying oxygen to a water purification process, said method comprising providing an oxygen carrier of at least one copolymer of dimethylsiloxane, ethylene oxide and propylene oxide, adding said oxygen carrier to the water purifying process, and contacting said oxygen carrier with an oxygen containing gas. The invention further relates to the use of at least one copolymer of dimethylsiloxane, ethylene oxide and propylene oxide, as an oxygen carrier in a water purification process.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: December 25, 2007
    Assignee: Kemira Oyj
    Inventors: Estera Szwajcer Dey, Olof Norrlöw
  • Publication number: 20060151389
    Abstract: The present invention relates to a method for supplying oxygen to a water purification process, said method comprising providing an oxygen carrier of at least one copolymer of dimethylsiloxane, ethylene oxide and propylene oxide, adding said oxygen carrier to the water purifying process, and contacting said oxygen carrier with an oxygen containing gas. The invention further relates to the use of at least one copolymer of dimethylsiloxane, ethylene oxide and propylene oxide, as an oxygen carrier in a water purification process.
    Type: Application
    Filed: November 20, 2003
    Publication date: July 13, 2006
    Inventors: Estera Szwajcer Dey, Olof Norrlow
  • Publication number: 20060086659
    Abstract: The present invention relates to a method for digestion of sludge in water purification, which method comprises the steps: providing an enzyme mixture capable of digesting natural polymeric materials, adding the enzyme mixture to an aqueous sludge suspension, and thereafter, adding at least one species of fermenting bacteria to the suspension, thereby fermenting the resulting suspension.
    Type: Application
    Filed: September 12, 2003
    Publication date: April 27, 2006
    Applicant: Kemira OYJ
    Inventors: Estera Szwajcer Dey, Olof Norrlow
  • Patent number: 5208155
    Abstract: A Triqonopsis variabilis D-amino acid oxidase in substantially pure form and active against cephalosporin C is disclosed. This D-amino acid oxidase is isolated from Trigonopsis variabilis by a method which is performed in three steps, namely:(a) acidifying and heating a crude cell extract of Trigonopsis variabilis to obtain a precipitate and supernatant fraction;(b) treating said supernatant fraction obtained in step (a) with sufficient ammonium sulfate to obtain a second precipitate, said second precipitate containing the D-amino acid oxidase of claim 1; and(c) resuspending the precipitate obtained in step (b) and collecting the D-amino acid oxidase by isoelectric precipitation.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: May 4, 1993
    Inventors: Klaus Mosbach, Estera Szwajcer