Patents by Inventor T. Raj

T. Raj 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: 20100076199
    Abstract: The present invention relates to methods for the preparation of pyridone carboxylic acids for use as intermediates in the preparation of various synthetic organic compounds. The pyridone carboxylic acids can for example be used as intermediates in the production of potent antitumor agents, antifungal agents, antiviral agents, psychotherapeutic agents or contrast imaging agents for MRI.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 25, 2010
    Applicant: GE HEALTHCARE AS
    Inventors: VIJAYA RAJ KUNIYIL KULANGARA, TILAK T. RAJ
  • Publication number: 20090326181
    Abstract: A polycarbonate polymer or copolymer comprising pendant silylated dihydroxy aromatic compound of the formula (1a); wherein Ga and Gb are each independently C1-12 alkyl, —OSi(C1-12 alkyl)3, C1-12 arylalkyl, or —OSi(C1-12 arylalkyl)3; Za and Zb are each independently a straight or branched C2-18 is alkylene, a C8-18 arylalkylene, or a C8-18 alkylarylene, Xa is a direct bond, a heteroatom-containing group, or a C1-18 organic group, and r and s are each independently 1 or 2 is disclosed.
    Type: Application
    Filed: September 8, 2009
    Publication date: December 31, 2009
    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Jan Pleun LENS, Tilak T. RAJ, Binod Behari SAHOO, Arakali Sreenivasarao Radhakrishna
  • Publication number: 20080306294
    Abstract: A silylated dihydroxy aromatic compound of the formula (1a); wherein Ga and Gb are each independently C1-12 alkyl, —OSi(C1-12 alkyl)3, C1-12 arylalkyl, or —OSi(C1-12 arylalkyl)3; Za and Zb are each independently a straight or branched C2-18 alkylene, a C8-18 arylalkylene, or a C8-18 alkylarylene, Xa is a direct bond, a heteroatom-containing group, or a C1-18 organic group, and r and s are each independently 1 or 2 is disclosed.
    Type: Application
    Filed: December 21, 2007
    Publication date: December 11, 2008
    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Jan Pleun Lens, Tilak T. Raj, Binod Behari Sahoo, Arakali Sreenivasarao Radhakrishna
  • Publication number: 20070260033
    Abstract: Disclosed herein is a process for preparing a polymer comprising structural units derived from polycyclic dihydroxy compound having Formula (I), wherein R1 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic functionality having 1 to 10 carbons, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; R2 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; and each R3 and R4, at each occurrence, can be the same or different and are independently at each occurrence an aliphatic functionality having 1 to 10 carbons or a cycloaliphatic functionality having 3 to 10 carbons, “n” is an integer having a value 0 to 4 and “m” is an integer h
    Type: Application
    Filed: March 29, 2007
    Publication date: November 8, 2007
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jan Kamps, Jan-Pleun Lens, James Mahood, Arakali Radhakrishna, T. Raj, Ravindra Singh
  • Publication number: 20070123682
    Abstract: A polymer comprising structural units derived from a polycyclic dihydroxy compound of Formula (I) wherein R1, R2 and R3 are independently at each occurrence selected from the group consisting of a cyano functionality, a halogen, an aliphatic functionality having 1 to 10 carbons, a cycloaliphatic functionality having 3 to 10 carbons, and an aromatic functionality having 6 to 10 carbons; wherein each occurrence of “n”, “m”, and “p” independently has a value of 0, 1, 2, 3, or 4; and wherein the polymer is substantially linear.
    Type: Application
    Filed: November 29, 2005
    Publication date: May 31, 2007
    Inventors: T. Raj, A.S. Radhakrishna, Jan-Pleun Lens, Subrahmanya K., Umesh Hasyagar, Subash Scindia
  • Publication number: 20070123713
    Abstract: A process of forming a polycyclic dihydroxy compound is described. The polycyclic dihydroxy compound has Formula (I) wherein R1, R2 and R3 are independently at each occurrence selected from the group consisting of a cyano functionality, a halogen, an aliphatic functionality having 1 to 10 carbons, a cycloaliphatic functionality having 3 to 10 carbons, and an aromatic functionality having 6 to 10 carbons; and wherein each occurrence of “n”, “m”, and “p” independently has a value of 0, 1, 2, 3, or 4. Also described are polycyclic dihydroxy compounds of Formula (I) in which the phthalimide group is meta to the triaryl-substituted carbon.
    Type: Application
    Filed: November 29, 2005
    Publication date: May 31, 2007
    Inventors: T. Raj, A.S. Radhakrishna, Jan-Pleun Lens, Subrahmanya K., Umesh Hasyagar
  • Publication number: 20070100113
    Abstract: A polycarbonate comprises structural units derived from a polycyclic dihydroxy compound of Formula (I) wherein R1 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic functionality having 1 to 10 carbons, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; R2 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; and R3 and R4 are independently at each occurrence a hydrogen, an aliphatic functionality having 1 to 10 carbons or a cycloaliphatic functionality having 3 to 10 carbons.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 3, 2007
    Inventors: Jan Kamps, Jan-Pleun Lens, James Mahood, A.S. Radhakrishna, T. Raj, Ravindra Singh
  • Publication number: 20070100156
    Abstract: A dihydroxy aromatic compound having a Formula (I) wherein R1 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic functionality having 1 to 10 carbons, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; R2 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; and each R3 and R4, at each occurrence, can be the same or different and are independently at each occurrence an aliphatic functionality having 1 to 10 carbons or a cycloaliphatic functionality having 3 to 10 carbons, “n” is an integer having a value 0 to 4 and “m” is an integer having a value 0 to 4.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 3, 2007
    Applicant: General Electric Company
    Inventors: Jan Kamps, Jan-Pleun Lens, A.S. Radhakrishna, T. Raj, Ravindra Singh
  • Patent number: 7186853
    Abstract: The invention relates to phosphites comprising substituted or unsubstituted tricyclodecylmethyl groups. The phosphites may also contain substituted and unsubstituted alcohols having about C6–C18 carbon atoms. The alcohol chain may be aliphatic, arylakyl and alkylaryl groups. The method of making of the phosphite composition is also described.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: March 6, 2007
    Assignee: Crompton Corporation
    Inventors: William Palmer Enlow, Marshall D. Moore, Vaikunth Sitaram Prabhu, Tilak T. Raj, Arakali S. Radhakrishna, Timmanna Upadhya, Surendra U. Kulkarni
  • Patent number: 6919389
    Abstract: The invention discloses a stabilized resin composition comprising a thermoplastic resin and a stabilizing benzimidazole based additive compound. In a second embodiment, the invention discloses a method to make a stabilized composition comprising a benzimidazole based stabilizing compound and a resin, said method comprising mixing said benzimidazole based stabilizing compound with said resin.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: July 19, 2005
    Assignee: Crompton Corporation
    Inventors: William Palmer Enlow, Marshall D. Moore, Vaikunth Sitaram Prabhu, Tilak T. Raj, Arakali Srinivasarao Radhakrishna, Raju Kharatkar
  • Publication number: 20040249030
    Abstract: The invention relates to phosphites comprising substituted or unsubstituted tricyclodecylmethyl groups. The phosphites may also contain substituted and unsubstituted alcohols having about C6-C18 carbon atoms. The alcohol chain may be aliphatic, arylakyl and alkylaryl groups. The method of making of the phosphite composition is also described.
    Type: Application
    Filed: June 5, 2003
    Publication date: December 9, 2004
    Inventors: William Palmer Enlow, Marshall D. Moore, Vaikunth Sitaram Prabhu, Tilak T. Raj, A. S. Radhakrishna, Timmanna Upadhya, Surendra U. Kulkarni
  • Publication number: 20040180995
    Abstract: The invention discloses a stabilised resin composition comprising a thermoplastic resin and a stabilizing benzimidazole based additive compound. In a second embodiment, the invention discloses a method to make a stabilized composition comprising a benzimidazole based stabilising compound and a resin, said method comprising mixing said benzimidazole based stabilising compound with said resin.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 16, 2004
    Inventors: William Palmer Enlow, Marshall D. Moore, Vaikunth Sitaram Prabhu, Tilak T. Raj, A. S. Radhakrishna, Raju Kharatkar
  • Patent number: 5608803
    Abstract: A programmable customized universal digital listening system is provided with one or more digital signal processor chips which are implemented as one or more digital filters whose parameters are established by one or more erasable programmable read-only memories (EPROMs). The information included in the EPROMs directed to the parameters of the digital filters are determined based upon the user's response to various audio signals provided from an audiologist. Based upon these responses, the EPROMs are programmed. Additionally, this listening system is provided with an additional digital filter which changes its responses based upon the frequency of any background noise.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: March 4, 1997
    Assignee: The University of New Mexico
    Inventors: Neeraj Magotra, T. Raj Natarajan, Frank Livingston, Sarala R. Gopalan
  • Patent number: 5033788
    Abstract: A combined hard top and convertible top car comprises a car and a cap which has the configuration of the convertible top when the top is in up or elevated position and overlies the convertible top. The cap comprises of top wall, a rear wall, a rear wall and side walls. The cap includes front flanges along the front edge of the top wall which engage under the front edge of the convertible top, rear flanges along the rear wall which engage under the front edge of the car body adjacent the rear wall of the convertible top and side flanges along the side walls that engage the sides of the car body.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: July 23, 1991
    Assignee: Evans Automotive, Division of Evans Industries Inc.
    Inventor: Joseph T. Raj
  • Patent number: 5020848
    Abstract: A customized automobile body and method of changing the appearance of an automobile utilizing a plastic body that has a recess that is adapted to overlie at least a portion of a window of the automobile body, the recess having a base wall and a peripheral wall merging with the remainder of the plastic body. In one embodiment, the recess is filled with a filler and the plastic body is covered with a plastic sheet or woven cloth sheet. In another embodiment, a plastic louver assembly is inserted in the recess. In another embodiment, the base wall of the recess is cut away to expose a portion of the window. In a further embodiment, the window is covered with an overlay of a deeply tinted transparent panel. In one form, the plastic body is a roof cap. In another form, the plastic body overlies a door of the automobile.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: June 4, 1991
    Assignee: Evans Industries, Inc.
    Inventor: Joseph T. Raj
  • Patent number: 5009938
    Abstract: A customized automobile having a rear window and a top including a plastic cap overlying the rear window and a portion of the top and one or more sections provided in partially overlapping relation. The plastic cap and sections are provided with a cloth covering. In one form, each section includes a transverse raised portion to simulate the support structure of a convertible. The cap and sections may be provided in a kit so that the plastic cap maybe used alone or together with one or more section.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: April 23, 1991
    Assignee: Evans Automotive, Division of Evans Industries, Inc.
    Inventor: Joseph T. Raj
  • Patent number: 5010480
    Abstract: A Digital Service (DS) interface interfaces a Personal Computer (PC) to the DS directly at the PC's data bus. The DS interface has independent transmit and receive memories for transmitting and receiving the digital data at high speeds. FIFO memories buffer data between the PC's data bus and the DS interface prior to being converted to bipolar digital signals before transmission and after being received and converted to amplitude discrete digital signals from bipolar digital signals.
    Type: Grant
    Filed: July 21, 1987
    Date of Patent: April 23, 1991
    Assignee: DSP Technology
    Inventor: T. Raj Natarajan
  • Patent number: 4937856
    Abstract: A conferencing bridge provides conferencing capabilities for a plurality of input lines and for a plurality of output lines. The conferencing bridge has a signal processor which processes the audio information transferred between the input lines and the output lines. A plurality of codecs analog to digital conversion and digital to analog conversion for interfacing the signal processor to the plurality of input lines and output lines. A control processor is operatively connected to the signal processor and controls and operation of the signal processor as well as the conferencing bridge through number codes that are inputted to the conference bridge via the telephone key pad. A tone converter converts the inputted tones to digital information to which the control processor will respond. The signal processor provides not only identification of the telephone line on which a speaker is talking but also performs an amplitude adjustment so that there is a minimum loss involved for the conferencing network.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: June 26, 1990
    Inventor: T. Raj Natarajan
  • Patent number: 4793650
    Abstract: A customized roof construction and method of making for changing the appearance of an automobile which has a side window opening wherein a portion of the body of the automobile covers a desired window position in the customized roof which comprises masking a portion of the window while leaving another portion of the window and the portion of the body associated with the window unmasked, applying a deeply tinted transparent panel over the unmasked portion of the window and the portion of the body where it is desired to provide the effect of the desired window, thereafter, applying a roof cap with a window opening corresponding substantially to the area of the tinted panel such as to provide a window having the substantially different configuration from the original window of the automobile with a portion of the window overlying a portion of the body of the automobile.
    Type: Grant
    Filed: September 28, 1987
    Date of Patent: December 27, 1988
    Assignee: Evans Automotive, Division of Evans Industries, Inc.
    Inventor: Joseph T. Raj