Patents by Inventor Tatyana Doutova

Tatyana Doutova 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).

  • Patent number: 9733406
    Abstract: The present invention is related to 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivatives of the general structural formula (I), the anisotropic optical film based on these derivatives with phase-retarding properties for displays, and method of producing thereof: where X is a carboxylic group COOH, m is 0, 1, 2 or 3; Y is a sulfonic group SO3H, n is 0, 1, 2 or 3; Z is an acid amide group L-NH2; p is 0, 1, 2 or 3; K is a counterion selected from the list comprising H+, NH4+, Na+, K+, Li+, Mg2+, Ca2+, Zn2+, and Al3+; s is the number of counterions providing neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, NO2, Cl, Br, F, CF3, CN, OH, OCH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3; w is 0, 1, 2, 3 or 4; and R1 is a substituent selected from the list comprising H, CH3, C2H5, C3H7, i-C3H7, CH2CH2CH2CH3, CH(CH3)CH2CH3, CH2CH(CH3)CH3 and C(CH3)3 and L is a linking group.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: August 15, 2017
    Assignee: CRYSOPTIX KK
    Inventors: Tatyana Doutova, Pavel I. Lazarev, Elena N. Sidorenko
  • Publication number: 20150062694
    Abstract: The present invention is related to 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivatives of the general structural formula (I), the anisotropic optical film based on these derivatives with phase-retarding properties for displays, and method of producing thereof: where X is a carboxylic group COOH, m is 0, 1, 2 or 3; Y is a sulfonic group SO3H, n is 0, 1, 2 or 3; Z is an acid amide group L-NH2; p is 0, 1, 2 or 3; K is a counterion selected from the list comprising H+, NH4+, Na+, K+, Li+, Mg2+, Ca2+, Zn2+, and Al3+; s is the number of counterions providing neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, NO2, Cl, Br, F, CF3, CN, OH, OCH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3; w is 0, 1, 2, 3 or 4; and R1 is a substituent selected from the list comprising H, CH3, C2H5, C3H7, i-C3H7, CH2CH2CH2CH3, CH(CH3)CH2CH3, CH2CH(CH3)CH3 and C(CH3)3 and L is a linking group.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 5, 2015
    Applicant: CRYSOPTIX KK
    Inventors: Tatyana Doutova, Pavel I. Lazarev, Elena N. Sidorenko
  • Patent number: 8865895
    Abstract: The present invention is related to 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivatives of the general structural formula (I), where X is a carboxylic group COOH, m is 0, 1, 2 or 3; Y is a sulfonic group SO3H, n is 0, 1, 2 or 3; Z is an acid amide group L-NH2; p is 0, 1, 2 or 3; K is a counterion selected from the list comprising H+, NH4+, Na+, K+, Li+, Mg2+, Ca2+, Zn2+, and Al3+; s is the number of counterions providing neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, NO2, Cl, Br, F, CF3, CN, OH, OCH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3; w is 0, 1, 2, 3 or 4; and R1 is a substituent selected from the list comprising H, CH3, C2H5, C3H7, i-C3H7, CH2CH2CH2CH3, CH(CH3)CH2CH3, CH2CH(CH3)CH3 and C(CH3)3 and L is a linking group.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: October 21, 2014
    Assignee: Crysoptix K.K.
    Inventors: Tatyana Doutova, Pavel I. Lazarev, Elena N. Sidorenko
  • Patent number: 7888505
    Abstract: The present invention relates to a 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one carboxylic acid and its esters of the general structural formula (I), and provides a method for their synthesis (I) where R and each R? are selected independently from the list comprising —H—CH3, —C2H5, —C3H7, -iso-C3H7, —CH2CH2CH2CH3, —CH(CH3)CH2CH3, —CH2CH(CH3)CH3 and —C(CH3)3; n is 1, 2, 3 or 4; Y is a substituent selected from the list comprising —CH3, —C2H5, —NO2, —Cl, —Br, —F, —CF3, —CN, —OH, —OCH3, —OC2H5, —OCOCH3, —OCN, —SCN, —NH2, —NHCOCH3; and z is 0, 1, 2, 3 or 4.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: February 15, 2011
    Assignee: Crysoptix, KK
    Inventors: Tatyana Doutova, Pavel I. Lazarev, Elena N. Sidorenko, Valery S. Kuzmin
  • Publication number: 20100047477
    Abstract: The present invention relates to a 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one carboxylic acid and its esters of the general structural formula (I), and provides a method for their synthesis (I) where R and each R? are selected independently from the list comprising —H—CH3, —C2H5, —C3H7, -iso-C3H7, —CH2CH2CH2CH3, —CH(CH3)CH2CH3, —CH2CH(CH3)CH3 and —C(CH3)3; n is 1, 2, 3 or 4; Y is a substituent selected from the list comprising —CH3, —C2H5, —NO2, —Cl, —Br, —F, —CF3, —CN, —OH, —OCH3, —OC2H5, —OCOCH3, —OCN, —SCN, —NH2, —NHCOCH3; and z is 0, 1, 2, 3 or 4.
    Type: Application
    Filed: January 15, 2007
    Publication date: February 25, 2010
    Applicant: CRYSOPTIX KK
    Inventors: Tatyana Doutova, Pavel I. Lazarev, Elena N. Sidorenko, Valery S. Kuzmin
  • Publication number: 20100039705
    Abstract: The present invention is related to 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivatives of the general structural formula (I), the anisotropic optical film based on these derivatives with phase-retarding properties for displays, and method of producing thereof (I) where X is a carboxylic group COOH, m is 0, 1, 2 or 3; Y is a sulfonic group SO3H, n is 0, 1, 2 or 3; Z is an add amide group L-NH2; p is 0, 1, 2 or 3; K is a counterion selected from the list comprising H, NH4+, Na+, K+, Li+, Mg2+, Ca2+, Zn2+, and Al3+; s is the number of counterions providing neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, NO2, Cl, Br, F, CF3, CN, OH, OCH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3; w is 0, 1, 2, 3 or 4; and R1 is a substituent selected from the list comprising H, CH3, C2H5, C3H7, i-C3H7, CH2CH2CH2CH3, CH(CH3)CH2CH3, CH2CH(CH3)CH3 and C(CH3)3 and L is a linking group.
    Type: Application
    Filed: January 15, 2007
    Publication date: February 18, 2010
    Applicant: CRYSOPTIX KK
    Inventors: Tatyana Doutova, Pavel I. Lazarev, Elena N. Sidorenko