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Broun

Adam C. Broun, Portland, OR US

Patent application numberDescriptionPublished
20080272842Calibrated feedback - A differential feedback amplifier is provided with a feedback network wherein that feedback network is adjustable so as to improve the PSRR of the amplifier. In another aspect of the present invention, a differential feedback amplifier is provided with a feedback network wherein that feedback network is adjustable so as to improve the CMRR of the amplifier. In a further aspect of the present invention, a Class D amplifier is provided with a passive differential feedback, summing with an input current at a differential virtual ground produced by an amplifier which is a sub-section of the Class D amplifier.11-06-2008

Phillippe Broun, Saint-Egreve FR

Patent application numberDescriptionPublished
20100018306METHOD AND DEVICE FOR DETERMINING THE EXISTENCE AND LOCATION OF STRESS-INDUCING FORCES ON A ROD - The present invention relates to methods for determining the existence and location of parasitic stress-inducing forces on a substantially cylindrical rod portion 01-28-2010
20100045278PROBE FOR ANALYSIS OF A COLLECTION OF RODS OR TUBES - The invention concerns a probe for analysis of a collection of rods or tubes comprising an elongated casing which bears, at a first end, at least one first magnetometer and, at a position sufficiently remote from the magnetometer, a permanent magnet, the north-south axis of which is perpendicular to the axis of the rods.02-25-2010
20100156403METHOD AND DEVICE FOR DETERMINING THE LOCATION OF THE STICKING POINT OF A ROD MADE OF MAGNETORESTRICTIVE MATERIAL LOCATED IN A WELL - The present invention relates to methods for determining the location of the sticking point Pc of a hollow rod or pipe 06-24-2010
20100181994METHOD AND DEVICE FOR DETERMINING THE LOCATION OF A ROD FIXING POINT - The invention concerns the methods for determining, relative to a point Po, the location of a fixing point Pf of a rod T located in an environment Mi wherein prevails a permanent magnetic field Ch. The inventive method is characterized in that it consists in studying the variations of the magnetic flux which passes through the windows F when the rod is and is not subjected to a torque about its axis A, said windows having substantially the same area and being connected to the rod T respectively in different points Px, Px+1, . . . located on the portion of the rod delimited by the assumed site of the fixing point Pf, and including the point Po, and having each a given position relative to the magnetic field lines of force when the rod is not subjected to the torque. The invention also concerns a device for implementing said method. The invention is advantageously applicable to determining the location of the sticking point of a string of hollow drill rods in an oil well.07-22-2010

Pierre Broun, Burlingame, CA US

Patent application numberDescriptionPublished
20090070902Production of hydroxylated fatty acids in genetically modified plants - This invention relates to plant fatty acyl hydroxylases. Methods to use conserved amino acid or nucleotide sequences to obtain plant fatty acyl hydroxylases are described. Also described is the use of cDNA clones encoding a plant hydroxylase to produce a family of hydroxylated fatty acids in transgenic plants. In addition, the use of genes encoding fatty acid hydroxylases or desaturases to alter the level of lipid fatty acid unsaturation in transgenic plants is described.03-12-2009
20100168455Production of Hydroxylated Fatty Acids in Genetically Modified Plants - This invention relates to plant fatty acyl hydroxylases. Methods to use conserved amino acid or nucleotide sequences to obtain plant fatty acyl hydroxylases are described. Also described is the use of cDNA clones encoding a plant hydroxylase to produce a family of hydroxylated fatty acids in transgenic plants. In addition, the use of genes encoding fatty acid hydroxylases or desaturases to alter the level of lipid fatty acid unsaturation in transgenic plants is described.07-01-2010

Patent applications by Pierre Broun, Burlingame, CA US

Pierre E. Broun, York GB

Patent application numberDescriptionPublished
20090276912Polynucleotides and Polypeptides in Plants - The invention relates to plant transcription factor polypeptides, polynucleotides that encode them, homologs from a variety of plant species, and methods of using the polynucleotides and polypeptides to produce transgenic plants having advantageous properties compared to a reference plant. Sequence information related to these polynucleotides and polypeptides can also be used in bioinformatic search methods and is also disclosed.11-05-2009