Patents by Inventor Vadiraj Ekkundi

Vadiraj Ekkundi 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: 20060258784
    Abstract: Compounds of formula (1) wherein R1 is hydrogen, hydroxy, halogen, nitro, cyano, amino, carboxy, carboxylic ester, sulfo, sulfonic ester, carboxylic amide, sulfonic amide, alkylthio, arylthio, alkoxy or aryloxy, R?1 is hydrogen, hydroxy, halogen, nitro, cyano, amino, carboxy, carboxylic ester, sulfo, sulfonic ester, carboxylic amide, sulfonic amide, alkylthio, arylthio, alkoxy or aryloxy, X is —O—, —S—, —NH— or —N(alkyl)—, X? is —O—, —S—, —NH— or —N(alkyl)—, Y is hydrogen or carboxylic ester, Y? is hydrogen or carboxylic ester, Z is ?C— or ?N—, Z? is ?C— or ?N—, x is 0 or 1, when Z is ?N—, then x is 0, y is 0 or 1, when Z? is ?N—, then y is 0, A is a conjugated linking bridge of the formula wherein n is 0, 1, 2 or 3, m is 0, 1, 2 or 3, B is a phenyl ring, T is ?C(R3)— or ?N—, wherein R3 is hydrogen, C1-C12alkyl or CN, W is a heterocyclic, or linear or polycondensed aromatic group which is unsubstituted or substituted by alkyl, halogen, hydroxy, alkoxy, alkylthio or amino, G is —CH? or —N?, and R2 i
    Type: Application
    Filed: July 17, 2006
    Publication date: November 16, 2006
    Inventors: Jean-Marie Adam, Pramod Dalvi, Vadiraj Ekkundi, Jean-Pierre Bacher, Ramaswami Sreenivasan, Deepak Rane
  • Publication number: 20060124017
    Abstract: Compounds of formula (1) wherein R1 is hydrogen, hydroxy, halogen, nitro, cyano, amino, carboxy, carboxylic ester, sulfo, sulfonic ester, carboxylic amide, sulfonic amide, alkoxy, aryloxy, alkylthio or arylthio, X is —O—, —S—, —NH— or —N(alkyl)-, Y is hydrogen or carboxylic ester, Z is ?C— or ?N—, T is ?C— or ?N—, R2 is hydrogen, alkyl or CN, n is 0 or 1, when Z is ?N— then n is 0, m is 0 or 1, when T is ?N— then m is 0, A is a heterocyclic or linear or polycondensed aromatic group which is unsubstituted or substituted by hydroxy alkyl, halogen, nitro, cyano, amino, acylamino, carboxylic ester, sulfonic ester, carboxylic amide, sulfonic amide, alkoxy, aryloxy, alkylthio, arylthio or phenyl, or A together with T and R2 can form an allycyclic or heterocyclic ring, their preparation and their use in the production of coloured plastics or polymeric colour particles.
    Type: Application
    Filed: March 10, 2004
    Publication date: June 15, 2006
    Inventors: Jean-Marie Adam, Pramod Dalvi, Vadiraj Ekkundi, Jean-Pierre Bacher, Dandip Tiwari
  • Publication number: 20060124014
    Abstract: Compounds of formula (I) wherein R1 is hydrogen, hydroxy, halogen, nitro, cyano, amino, carboxy, carboxylic ester, sulfo, sulfonic ester, carboxylic amide, sulfonic amide, alkylthio, arylthio, alkoxy or aryloxy, R?1 is hydrogen, hydroxy, halogen, nitro, cyano, amino, carboxy, carboxylic ester, sulfo, sulfonic ester, carboxylic amide, sulfonic amide, alkylthio, arylthio, alkoxy or aryloxy, X is —O—, —S—, —NH— or —N(alkyl)-, X? is —O—, —S—, —NH— or —N(alkyl)-, Y is hydrogen or carboxylic ester, Y? is hydrogen or carboxylic ester, Z is ?C— or ?N—, Z? is ?C— or ?N—, x is 0 or 1, when Z is ?N—, then x is 0, y is 0 or 1, when Z? is ?N—, then y is 0, A is a conjugated linking bridge of the formulae (II), (III), (IV), (V), or (VI), wherein n is 0, 1, 2 or 3, m is 0, 1, 2 or 3, B is a phenyl ring, T is ?C(R3)— or ?N—, wherein R3 is hydrogen, C1-C12alkyl or CN, W is a heterocyclic, or linear or polycondensed aromatic group which is unsubstituted or substituted by alkyl, halogen, hydroxy, alkoxy, alkylthio or amino, G i
    Type: Application
    Filed: March 10, 2004
    Publication date: June 15, 2006
    Inventors: Jean-Marie Adam, Pramod Dalvi, Vadiraj Ekkundi, Jean-Pierre Bacher, Ramaswami Sreenivasan, Deepak Rane
  • Publication number: 20060060829
    Abstract: The invention relates to novel liquid crystal displays comprising a broad backlight emission around 530 nm and a green colour filter containing a phthalocyanine colorant, most adequately tetrahydroxy- or tetraalkoxy-substituted but lacking solubilizing groups.
    Type: Application
    Filed: August 5, 2003
    Publication date: March 23, 2006
    Inventors: Gerardus Keyzer, Taher Yousaf, Vadiraj Ekkundi, Chandrasekhar Mudaliar