Patents by Inventor Patrick Perrin

Patrick Perrin 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).

  • License plate frame
    Publication number: 20060010735
    Abstract: License plate frames having recessed areas in the frame surface which form characters, words, and/or graphics, and having an adhered layer of material of contrasting color on the frame surface.
    Type: Application
    Filed: August 9, 2005
    Publication date: January 19, 2006
    Inventor: Patrick Perrin
  • LICENSE PLATE FRAME
    Publication number: 20050262742
    Abstract: License plate frames having recessed areas in the frame surface which form characters, words, and/or graphics, and having an adhered layer of material of contrasting color on the frame surface.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 1, 2005
    Inventor: Patrick Perrin
  • License plate frame
    Patent number: 6962013
    Abstract: License plate frames having recessed areas in the frame surface which form characters, words, and/or graphics, and having an adhered layer of material of contrasting color on the frame surface.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: November 8, 2005
    Assignee: Perrin Manufacturing Company
    Inventor: Patrick Perrin
  • Reversible emulsions stabilized by amphiphilic polymers and application to drilling fluid
    Publication number: 20040259739
    Abstract: The invention concerns modified hydrophobic polyelectrolytes by amide formation of a hydrophilic skeleton by n-alkylamines whereof the alkyl chain comprises 6 to 22 carbon atoms. Preferably, the amide formation is obtained by di-n-dodecylamine. The hydrophilic skeleton is preferably a sodium polyacrylate or polyacrylic acid corresponding to a statistical acrylate-AMPS copolymer. Said polymers can be used for stabilizing direct or invert emulsions likely to be destabilized or inverted by a modification in the degree of salinity of the aqueous phase or a pH modification. The invention is particularly useful for stabilizing oil drilling fluids or the like in particular drilling, fracturation, acidification or completion fluids.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 23, 2004
    Inventors: Nathalie Monfreux-Gaillard, Patrick Perrin, Francoise LaFuma, Christopher Sawdon
  • Invertible emulsions stabitised by amphiphilic polymers and application to bore fluids
    Patent number: 6822039
    Abstract: The invention concerns modified hydrophobic polyelectrolytes by amide formation of a hydrophilic skeleton by n-alkylamines whereof the alkyl chain comprises 6 to 22 carbon atoms. Preferably, the amide formation is obtained by di-n-dodecylamine. The hydrophilic skeleton is preferably a sodium polyacrylate or polyacrylic acid corresponding to a statistical acrylate-AMPS copolymer. Said polymers can be used for stabilising direct or invert emulsions likely to be destabilised or inverted by a modification in the degree of salinity of the aqueous phase or a pH modification. The invention is particularly useful for stabilising oil drilling fluids or the like in particular drilling, fracturation, acidification or completion fluids.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: November 23, 2004
    Assignee: M-I L.L.C.
    Inventors: Nathalie Monfreux-Gaillard, Patrick Perrin, Françoise LaFuma