Patents by Inventor Ludovic Fodor

Ludovic Fodor 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: 7199271
    Abstract: A method for reducing the concentration of cyclohexenone in a cyclohexenone containing organic mixture is disclosed. The method includes contacting an organic mixture comprising cyclohexenone with an effective amount of at least one of sulfurous acid, a salt of sulfurous acid, an alkali hydroxide, or a mixture of two or more of these compounds.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: April 3, 2007
    Assignee: Invista North America S.A.R.L.
    Inventor: Ludovic Fodor
  • Publication number: 20060211890
    Abstract: A method for reducing the concentration of cyclohexenone in a cyclohexenone containing organic mixture is disclosed. The method includes contacting an organic mixture comprising cyclohexenone with an effective amount of at least one of sulfurous acid, a salt of sulfurous acid, an alkali hydroxide, or a mixture of two or more of these compounds.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 21, 2006
    Inventor: Ludovic Fodor
  • Patent number: 6814867
    Abstract: Disclosed herein is a process for reducing or substantially eliminating chromium in non-volatile residue obtained from a certain processes, and particularly from cyclohexane oxidation processes.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: November 9, 2004
    Assignee: Inuista North America S.à.r.l.
    Inventors: Ludovic Fodor, Bennett Haines Novak, Jules Charles Joseph Perilloux, Jr., Bhagya Chandra Sutradhar
  • Publication number: 20040092767
    Abstract: Process for producing an aqueous solution comprising adipic acid, hydroxyhexanoic acid and oligomers thereof.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 13, 2004
    Inventors: Luis A. Chu, Ludovic Fodor, David L. Valdez
  • Publication number: 20040054235
    Abstract: Disclosed herein is a process for the production of a mixture of cyclohexanone and cyclohexanol by oxidation of cyclohexane and decomposition of cyclohexyl hydroperoxide.
    Type: Application
    Filed: September 12, 2002
    Publication date: March 18, 2004
    Inventors: Ludovic Fodor, Bhagya Chandra Sutradhar
  • Publication number: 20040050780
    Abstract: Disclosed herein is a process for reducing or substantially eliminating chromium in non-volatile residue obtained from a certain processes, and particularly from cyclohexane oxidation processes.
    Type: Application
    Filed: September 12, 2002
    Publication date: March 18, 2004
    Inventors: Ludovic Fodor, Bennett Haines Novak, Jules Charles Joseph Perilloux, Bhagya Chandra Sutradhar
  • Patent number: 6703529
    Abstract: Disclosed herein is a process for the production of a mixture of cyclohexanone and cyclohexanol by oxidation of cyclohexane and decomposition of cyclohexyl hydroperoxide.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: March 9, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Ludovic Fodor, Bhagya Chandra Sutradhar
  • Patent number: 6700022
    Abstract: Disclosed is a process for cyclohexyl hydroperoxide (CHHP) decomposition using in aqueous alkaline solution in presence of cobalt catalyst.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: March 2, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ludovic Fodor
  • Publication number: 20030229253
    Abstract: Disclosed is a process for cyclohexyl hydroperoxide (CHHP) decomposition using in aqueous alkaline solution in presence of cobalt catalyst.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 11, 2003
    Inventor: Ludovic Fodor
  • Patent number: 5601971
    Abstract: An improved method of hardening a hydrophilic colloid is detailed. The hardening results in a stronger matrix and less water pickup. These and other advantages are obtained by hardening with a combination of at least one hardener chosen from Formula I either alone or in combination with at least one hardener chosen from Formula II: ##STR1## The substituents are defined.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: February 11, 1997
    Assignee: Sterling Diagnsotic Imaging, Inc.
    Inventors: Ludovic Fodor, Richard R. M. Jones, Reinhold R uger, Timothy D. Weatherill, Rolf T. Weberg
  • Patent number: 5591863
    Abstract: This invention is related to improved hardeners for proteinaceous materials. More specifically this invention is related to improved imidazolium hardeners for crosslinking a proteinaceous material for use in a photographic film.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: January 7, 1997
    Assignee: Sterling Diagnostic Imaging, Inc.
    Inventors: Ludovic Fodor, Timothy D. Weatherill, Rolf T. Weberg
  • Patent number: 5527665
    Abstract: An improved hardener and a photographic element comprising same defined by ##STR1## wherein: the substituent groups are as defined in the specification.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: June 18, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ludovic Fodor, Timothy D. Weatherill, Rolf T. Weberg
  • Patent number: 5470986
    Abstract: Hardeners for hydrophilic colloid defined by the formula: ##STR1## The hardeners are for crosslinking proteinaceous materials for use in photographic films.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: November 28, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ludovic Fodor, Timothy D. Weatherill, Rolf T. Weberg
  • Patent number: 5459029
    Abstract: An improved imidazolium hardener is described. These novel hardners are specifically advantageous for hardening, or crosslinking, a hydrophilic colloid in a photographic element. The advance in the art is realized in A hardening agent chosen from the set consisting of: ##STR1## wherein: Y.sup.1 represents an alkyl of 6-24 carbons, aryl of 6-24 carbons, aralkyl of 7 to 25 carbons, the atoms chosen from C, N, O, and S necessary to form a 5- or 6-membered ring, or --L.sup.1 CR.sup.13 CH.sub.2 ;L.sup.1 is a linking group;R.sup.1 is hydrogen, alkyl of 1 to 24 carbons, aryl of 6 to 24 carbons, aralkyl of 7 to 25 carbons or halogen;R.sup.2 and R.sup.3 independently represent alkyl of 1-24 carbons, aryl of 6-24 carbons, aralkyl of 7 to 25 carbons or R.sup.2 and R.sup.3 independently may represent, or be taken together to represent the atoms chosen from C, N, O and S necessary to form a 5- or 6-membered ring;R.sup.4 and R.sup.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: October 17, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ludovic Fodor, Richard R. M. Jones, Rolf T. Weberg
  • Patent number: 5384232
    Abstract: A process of developing exposed silver halide elements comprises developing said element in a developer in the presence of a development accelerator compound as defined. The development accelerator compounds include pyridinium, or pyridinium and and imidazolium compounds. The process is applicable to standard and hydrazine-containing films and to hydroquinone and/or ascorbic acid-based developers. The development accelerator may be incorporated into the developer or into the silver halide emulsion.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: January 24, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Julie C. Bishop, Dominic M. Chan, Dennis S. Donald, Ludovic Fodor, William R. Pangratz, Glenn M. Russo, John R. Shock
  • Patent number: 5378842
    Abstract: An improved imidazolium hardener is described. These novel hardeners are specifically advantageous for hardening, or crosslinking, a hydrophilic colloid in a photographic element.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: January 3, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ludovic Fodor, Richard R. M. Jones, Rolf T. Weberg
  • Patent number: 5147756
    Abstract: A process for stabilizing aqueous solution of aryl hydrazides is described. These solutions may be made by the addition of a stabilizing amount of ascorbic acid, isoascorbic acid, erythorbic acid, tartaric acid, citric acid. glucose and a cyclodextrin, etc., or mixtures, for example. When aqueous solutions of aryl hydrazides containing these stabilizers/antioxidants are prepared, the solution will have a shelf life of up to 30 days compared to 1-3 hours of solutions without the stabilizer/antioxidant. The stabilized aryl hydrazide is useful in photographic silver halide emulsions, etc.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: September 15, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ludovic Fodor