Patents by Inventor Prakash Patel

Prakash Patel 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: 20060162615
    Abstract: A composition comprising: (a) a major dye component which is a mixture of phthalocyanine dyes of Formula (1) and salts thereof: wherein: Pc represents a phthalocyanine nucleus of formula; x is 0.1 to 3.8; y is 0.1 to 3.8; z is 0.1 to 3.8; the sum of x+y+z is 3 to 4; and the substituents, represented by x, y and z, are attached only to a ?-position on the phthalocyanine ring; and (b) a liquid medium. Also ink-jet inks and cartridges, printing processes, printed material and dye mixtures.
    Type: Application
    Filed: January 6, 2006
    Publication date: July 27, 2006
    Inventor: Prakash Patel
  • Publication number: 20060156951
    Abstract: Ink comprising a compound of Formula (1) and salts thereof: Formula (1) wherein: Pc represents a phthalocyanine nucleus of Formula (2); Formula (2) x is greater than 0 and less than 1.8; y and z are both greater than 0; and the sum of (x+y+z) is 2.4 to 4.5: and a liquid medium. Also an ink-jet printing process, a material printed with an ink of the invention and an ink jet printing cartridge containing an ink of the invention.
    Type: Application
    Filed: September 19, 2003
    Publication date: July 20, 2006
    Inventor: Prakash Patel
  • Publication number: 20060150861
    Abstract: A metal chelate compound of Formula: (1) or a salt thereof: [A-N?N—B] M (1) wherein: A is a 5- or 6-membered heterocyclic ring other than a triazole ring, optionally carrying one or more substituents; B is of the Formula (2a) or (2b). Formula (2a) (2b) wherein: X, Y and W are substituents other than H; M is a metal chelated to A-N?N—B; and n is 0 to 4. Also claimed are compositions and inks containing a compound of Formula (1), a process for ink jet printing using the inks and an inkjet printer cartridge containing the ink.
    Type: Application
    Filed: February 17, 2004
    Publication date: July 13, 2006
    Inventors: Clive Foster, Gavin Wright, Kevin Johnson, Mairi Reggatt, Prakash Patel
  • Publication number: 20060122294
    Abstract: An ethylene polymer composition having improved optical properties and masterbatch for producing the composition comprising a predetermined amount of clarifying agent, and a predetermined amount of an amide slip agent.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 8, 2006
    Inventors: Don Beuke, Phil Pickett, Prakash Patel, Shawn Lucas, Prashant Trivedi, Nilesh Savargaonkar
  • Patent number: 7022171
    Abstract: A process for coloration of a substrate comprising applying thereto by means of an ink-jet printer an ink composition comprising a compound of Formula (1) or salt thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc is a phthalocyanine nucleus of Formula (2); each R1 and R2 independetly are H, C1-4alkyl or C1-4hydroxyalkyl; R3 is phenyl carrying 1 or 2 sulpho substituents or phenyl carrying at least 1 carboxy or 1 phosphato substituent and having further optional substituents; x, y and z are all greater than 0 and the sum of (x+y+z) is 2 to 5.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: April 4, 2006
    Assignee: Avecia Limited
    Inventors: Prakash Patel, Tina Margaret Horrobin
  • Patent number: 7014696
    Abstract: A compound of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of Formula (2); R1, R2 and R3 independently are H or optionally substituted C1-4 alkyl; R4 is an optionally substituted cyclic or an optionally substituted acyclic alkene optionally interrupted with a hetero atom; x and z are both greater than 0; y is 0 to 4; and the sum of (x+y+z) is 2 to 5. Also compositions and inks comprising compounds of Formula (1); processes for printing these compositions and substrates printed with said compositions and inks; and ink jet printer cartridges.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: March 21, 2006
    Assignee: Avecia Limited
    Inventor: Prakash Patel
  • Publication number: 20060057309
    Abstract: A process for forming an image on a substrate comprising applying a composition comprising: (a) a compound of Formula (1) and salts thereof, wherein: M is Cu or Ni; Pc represents a phthalocyanine nucleus of Formula (2); R1, R2 and R3 independently are H or optionally substituted C1-4alkyl; R4 is optionally substituted C1-4-hydroxyalkyl; x is greater than 0 and less than 1.8; y and z are both greater than 0; and the sum of (x+y+z) is 2.4 to 4.5: and (b) a liquid medium: thereto by means of an ink jet printer. Also compositions, inks, compounds and ink jet printer cartridges.
    Type: Application
    Filed: September 19, 2003
    Publication date: March 16, 2006
    Inventor: Prakash Patel
  • Patent number: 6979364
    Abstract: A metal chelate compound of the Formula (1) and salts thereof: wherein: one of A and B is OH and the other is an azotriazole group; and M is a metal or boron; and n is 0 to 4; compositions and inks containing a compound of Formula (1), a process for ink jet printing using the inks and an ink jet printer cartridge containing the ink.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: December 27, 2005
    Assignee: Avecia Limited
    Inventors: Gavin Wright, Kevin Johnson, Mairi Elizabeth Raggatt, Prakash Patel
  • Publication number: 20050274280
    Abstract: A metal chelate compound of the Formula (1) and salts thereof: wherein: one of A and B is OH and the other is an azotriazole group; and M is a metal or boron; and n is 0 to 4; compositions and inks containing a compound of Formula (1), a process for ink jet printing using the inks and to an ink jet printer cartridge containing the ink.
    Type: Application
    Filed: August 5, 2005
    Publication date: December 15, 2005
    Inventors: Gavin Wright, Kevin Johnson, Mairi Raggatt, Prakash Patel
  • Patent number: 6969421
    Abstract: A process for printing an image on a substrate comprising applying thereto by means of an ink jet printer an ink containing a metal chelate compound of the Formula (1) and salts thereof: wherein: one of A and B is OH and the other is an azotriazole group; each W independently is a carboxy or carbonamido group; each X independently is a substituent other than H, sulphonamido, carboxy, sulpho and carbonamido; J is a sulphonamido group; M is a metal or boron; a, p, q and n are each independently 0, 1, 2, 3 or 4; and (p+q+a+n) is 0, 1, 2, 3 or 4. Also claimed are compounds of Formula (1), compositions and inks containing a compound of Formula (1) and an ink jet printer cartridge containing the ink.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: November 29, 2005
    Assignee: Avecia Limited
    Inventors: Gavin Wright, Kevin Johnson, Mairi Elizabeth Raggatt, Prakash Patel
  • Publication number: 20050126436
    Abstract: A process for coloration of a substrate comprising applying thereto by means of an ink-jet printer an ink composition comprising a compound of Formula (1) or salt thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc is a phthalocyanine nucleus of Formula (2); each R1 and R2 independetly are H, C1-4alkyl or C1-4hydroxyalkyl; R3 is phenyl carrying 1 or 2 sulpho substituents or phenyl carrying at least 1 carboxy or 1 phosphato substituent and having further optional substituents; x, y and z are all greater than 0 and the sum of (x+y+z) is 2 to 5. Also novel compounds, compositions, printed substrates and ink-jet printer cartridges.
    Type: Application
    Filed: February 27, 2003
    Publication date: June 16, 2005
    Inventors: Prakash Patel, Tina Horrobin
  • Publication number: 20050104944
    Abstract: A process for preparing a mixture of copper phthalocyanine dyes of Formula (1): CuPc(SO3M)x(SO2NH2)y, CuPc is copper phthalocyanine; M is a cation; x and y each independently have a value of from 0.5 to 3.5; and (x+y)=2 to 5; which process comprises: (vii) chlorosulphonating a copper phthalocyanine compound using a chlorosulphonating agent; and (viii) condensing the product of step (i) with ammonia to give a mixture of copper phthalocyanine dyes of Formula (1); (ix) optionally exchanging the cation M in the mixture of copper phthalocyanine dyes of Formula (1) resulting from step (ii) for an alternative cation M; wherein the chlorosulphonating agent comprises a mixture of chlorosulphonic acid and a chlorinating agent selected from phosphorous oxychloride and phosphorous trichloride.
    Type: Application
    Filed: February 13, 2003
    Publication date: May 19, 2005
    Inventors: Colin Robertson, Jill Johnson, Prakash Patel
  • Publication number: 20050081748
    Abstract: A compound of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of Formula (2); R1, R2 and R3 independently are H or optionally substituted C1-4 alkyl; R4 is an optionally substituted cyclic or an optionally substituted acyclic alkene optionally interrupted with a hetero atom; x and z are both greater than 0; y is 0 to 4; and the sum of (x+y+z) is 2 to 5. Also compositions and inks comprising compounds of Formula (1); processes for printing these compositions and substrates printed with said compositions and inks; and ink jet printer cartridges.
    Type: Application
    Filed: January 23, 2003
    Publication date: April 21, 2005
    Inventor: Prakash Patel
  • Publication number: 20040134382
    Abstract: A composition comprising:
    Type: Application
    Filed: August 29, 2003
    Publication date: July 15, 2004
    Inventors: Paul Wight, Prakash Patel
  • Publication number: 20040054764
    Abstract: An update system configured to provide software updates, software patches and/or other data packets to one or more computer systems via a network is disclosed. The update system may interact with a network management system, such as an enterprise management system, to distribute data packets and gather configuration information. The update system may generate and send commands to the network management system. The network management system may carry out the commands to distribute data packets and/or gather configuration information.
    Type: Application
    Filed: September 12, 2002
    Publication date: March 18, 2004
    Inventors: Harry Aderton, Richard Aderton, Prakash Patel, John Reckeweg, Gary Rietmann
  • Publication number: 20040027399
    Abstract: A process for printing an image on a substrate comprising applying thereto by means of an ink jet printer an ink containing a metal chelate compound of the Formula (1) and salts thereof: 1
    Type: Application
    Filed: May 20, 2003
    Publication date: February 12, 2004
    Applicant: Avecia Limited
    Inventors: Gavin Wright, Kevin Johnson, Mairi Elizabeth Raggatt, Prakash Patel
  • Publication number: 20040020405
    Abstract: A metal chelate compound of the Formula (1) and salts thereof: 1
    Type: Application
    Filed: May 20, 2003
    Publication date: February 5, 2004
    Applicant: Avecia Limited
    Inventors: Gavin Wright, Kevin Johnson, Mairi Elizabeth Raggatt, Prakash Patel
  • Publication number: 20040018631
    Abstract: A method for detecting the presence and/or amount of fluoride in a test sample which comprises contacting the test sample with a compound of Formula (1) or a salt thereof and evaluating any change in the spectral characteristics of the compound:
    Type: Application
    Filed: August 8, 2003
    Publication date: January 29, 2004
    Inventors: Christopher James Ward, Prakash Patel, Tony David James
  • Patent number: 6635747
    Abstract: A compound of the Formula (1) and salts thereof: wherein: D is the residue of a mono-azo chromophore; Z is an optionally substituted nitrogen containing heterocyclic group; R1 is H or optionally substituted alkyl; the dyes of Formula (1) being free from fibre reactive groups; provided that the compound of Formula (1) is other than the compound of Formula (A): Also claimed are compositions and inks containing a compound of Formula (1), a process for ink jet printing using the inks and to an ink jet printer cartridge containing the ink.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: October 21, 2003
    Assignee: Avecia Limited
    Inventors: Paul Wight, Prakash Patel
  • Publication number: 20030120047
    Abstract: A compound of the Formula (1) and salts thereof: 1
    Type: Application
    Filed: July 24, 2002
    Publication date: June 26, 2003
    Inventors: Paul Wight, Prakash Patel