Patent application number | Description | Published |
20130264060 | FLUID SUITABLE FOR TREATMENT OF CARBONATE FORMATIONS CONTAINING A CHELATING AGENT - The present invention covers a fluid and kit of parts suitable for treating carbonate formations containing glutamic acid N,N-diacetic acid or a salt thereof (GLDA) and/or methylglycine N,N-diacetic acid or a salt thereof (MGDA), a corrosion inhibitor, and a surfactant, and the use thereof. | 10-10-2013 |
20130274154 | PROCESS AND FLUID TO IMPROVE THE PERMEABILITY OF SANDSTONE FORMATIONS USING A CHELATING AGENT - The present invention relates to a process for treating a sandstone formation comprising introducing a fluid containing glutamic acid N,N-diacetic acid or a salt thereof (GLDA) and having a pH of between 1 and 14 into the formation. The invention in addition relates to a fluid and a kit of parts suitable for use in the above process containing glutamic acid N,N-diacetic acid or a salt thereof (GLDA), a corrosion inhibitor, a surfactant, and optionally a mutual solvent. | 10-17-2013 |
20140120276 | Corrosion Resistance When Using Chelating Agents in Chromium-Containing Equipment - The present invention relates to process to reduce the corrosion of equipment containing a chromium-containing alloy in the oil and/or gas industry, comprising a step of contacting the equipment based on a chromium-containing alloy with a solution containing at least 1 wt % on total weight of the solution of glutamic acid N,N-diacetic acid or a salt thereof (GLDA) and/or methylglycine N,N-diacetic acid or a salt thereof (MGDA) having an acidic pH, the use of the above solutions in equipment containing a chromium-containing alloy to reduce corrosion, and to a system containing a piece of equipment used in the oil and/or gas industry made at least partly from chromium-containing alloy in contact with an acidic solution containing at least 1 wt % of glutamic acid N,N-di acetic acid or a salt thereof (GLDA) and/or methylglycine N,N-di acetic acid or a salt thereof (MGDA). | 05-01-2014 |
Patent application number | Description | Published |
20110215789 | BANDGAP REFERENCE CIRCUIT AND METHOD FOR PRODUCING THE CIRCUIT - Bandgap reference circuit, comprising a voltage generator (VG) designed to produce a voltage or a current proportional to absolute temperature, a supply circuit (SC), designed to produce a supply for operating the voltage generator (VG), comprising a bias element (BS) and a control element (CS), and a bias circuit (BC), designed to produce a bias for operating the voltage generator (VG), comprising a bias element (BB) and a control element (CB). At least one of the control element (CS) of the supply circuit (SC) and the control element (CB) of the bias circuit (BC) comprises a pseudomorphic high-electron-mobility transistor or a hetero-junction bipolar transistor and/or at least one of the bias element (BS) of the supply circuit (SC) and the bias element (BB) of the bias circuit (BC) comprises a long-gate pseudomorphic high-electron-mobility transistor or a resistor. Method for producing the circuit wherein the pseudomorphic high-electron-mobility transistors and the hetero-junction bipolar transistors are produced using a GaAs BiFET technology process. | 09-08-2011 |
20130033322 | CIRCUIT UNIT, BIAS CIRCUIT WITH CIRCUIT UNIT AND DIFFERENTIAL AMPLIFIER CIRCUIT WITH FIRST AND SECOND CIRCUIT UNIT - Circuit unit (CU) comprising a heterojunction bipolar transistor and a long-gate pseudomorphic high-electron-mobility transistor. Either a source (S) or a drain (D) of the long-gate pseudomorphic high-electron-mobility transistor is electrically coupled with either a collector (C) or an emitter (E) of the heterojunction bipolar transistor. | 02-07-2013 |
20130169250 | Voltage Regulator and a Method for Reducing an Influence of a Threshold Voltage Variation - A voltage regulator can provide a regulated output voltage. The voltage regulator includes a regulating module that includes a resistor and a field effect transistor that has a threshold voltage. The resistor is coupled to a gate terminal and a source terminal of the field effect transistor. The regulating module provides the output voltage. A reference module is suitable for detecting a variation of the output voltage. The reference module is coupled with the regulating module. A current sink is suitable for subtracting a compensation current from the current flowing from the regulating module to the reference module. The compensation current is dependent on a variation of the threshold voltage. | 07-04-2013 |
Patent application number | Description | Published |
20120191286 | STEERING ARRANGEMENT FOR A VEHICLE WHICH IS MOVABLE ALONG A PREDEFINED PATH IN USE, BEING AUTOMATICALLY STEERED VIA AT LEAST ONE FIRST AXLE, AS WELL AS A VEHICLE PROVIDED WITH SUCH A STEERING ARRANGEMENT - A steering arrangement for a vehicle which is movable along a predefined path in use, being automatically steered via at least one first axle. Also disclosed is a vehicle provided with such a steering arrangement. The steering arrangement is for use in an automatically guided and steered vehicle, i.e. without a driver, wherein the steering arrangement can continue to influence the steerage of the vehicle for a minimum period of time in case of a malfunction, such that the risk of dangerous situations or accidents is minimized. | 07-26-2012 |
20120197479 | STEERING ARRANGEMENT FOR A VEHICLE WHICH IS MOVABLE ALONG A PREDEFINED PATH IN USE, BEING AUTOMATICALLY STEERED VIA AT LEAST ONE FIRST AXLE, AS WELL AS A VEHICLE PROVIDED WITH SUCH A STEERING ARRANGEMENT - A steering arrangement for a vehicle which is movable along a predefined path in use, being automatically steered via at least one first axle. Also disclosed is a steered vehicle provided with such a steering arrangement. The steering arrangement is for use in a guided and steered vehicle, i.e. with a driver, wherein the steering arrangement can continue to influence the steerage of the vehicle for a minimum period of time in case of a malfunction, such that the risk of dangerous situations or accidents is minimized. | 08-02-2012 |
20130060424 | STEERING ARRANGEMENT FOR A VEHICLE WHICH IS MOVABLE ALONG A PREDEFINED PATH IN USE, BEING AUTOMATICALLY STEERED VIA AT LEAST ONE FIRST AXLE, AS WELL AS A VEHICLE PROVIDED WITH SUCH A STEERING ARRANGEMENT - A steering arrangement for a vehicle which is movable along a predefined path in use, being automatically steered via at least one first axle. Also disclosed is a vehicle provided with such a steering arrangement. Further disclosed is a method for moving a vehicle that is automatically steered via at least one first axle by a steering device along a predefined path. The steering arrangement is for use in an automatically guided and steered vehicle, i.e. without a driver, wherein the steering arrangement can continue to influence the steerage of the vehicle for a minimum period of time in case of a malfunction, such that the risk of dangerous situations or accidents is minimized. | 03-07-2013 |