Kishan
Dholakia Kishan, Fife GB
Patent application number | Description | Published |
---|---|---|
20110174961 | OPTICAL TRAP - A system for forming an optical trap comprising two or more photonic crystal fibers (PCFs) and at least one source of radiation for inputting radiation to the photonic crystal fibers, the fibers being operable to provide counter-propagating outputs for forming the optical trap. | 07-21-2011 |
Gurram Kishan, Karnataka IN
Patent application number | Description | Published |
---|---|---|
20100081828 | CATALYTIC METHOD FOR PRODUCING PHENOLPHTHALEIN COMPOUNDS - A method of producing a phenolphthalein comprises reacting a phenolic compound of the formula: | 04-01-2010 |
20100081829 | METHOD FOR PRODUCING PHENOLPHTHALEIN USING A HETEROPOLYACID CATALYST - A method for producing a phenolphthalein compound comprises: reacting a phenolic compound of the formula: | 04-01-2010 |
20100081831 | METHOD FOR PRODUCING PHENOLPHTHALEIN COMPOUND USING IONIC LIQUID CATALYST COMPOSITION - A method for producing a phenolphthalein compound is disclosed, comprising: reacting a phenolic compound of the formula: | 04-01-2010 |
Gurram Kishan, Bangalore IN
Patent application number | Description | Published |
---|---|---|
20080242829 | METHODS FOR PRODUCING AND PURIFYING 2-HYDROCARBYL-3,3-BIS(4-HYDROXYARYL)PHTHALIMIDINE MONOMERS AND POLYCARBONATES DERIVED THEREFROM - Disclosed herein is a method comprising reacting a phenolphthalein material and a primary hydrocarbyl amine in the presence of an acid catalyst to form a reaction mixture comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, wherein the phenolphthalein material comprises greater than or equal to 95 weight percent phenolphthalein, based on the total weight of phenolphthalein material; quenching the reaction mixture and treating the quenched reaction mixture to obtain a first solid. The first solid is then triturated with a trituration solvent and washed to obtain a second solid, wherein the second solid comprises greater than or equal to 97 weight percent 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, based on the total weight of the second solid. The second solid may be polymerized to form a polycarbonate. | 10-02-2008 |
20080242873 | METHODS FOR PRODUCING AND PURIFYING 2-HYDROCARBYL-3,3-BIS(4-HYDROXYARYL)PHTHALIMIDINE MONOMERS AND POLYCARBONATES DERIVED THEREFROM - Disclosed herein is a method comprising reacting a phenolphthalein material and a primary hydrocarbyl amine in the presence of an acid catalyst to form a reaction mixture comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, wherein the phenolphthalein material comprises greater than or equal to 99 weight percent phenolphthalein, based on the total weight of the phenolphthalein material; quenching the reaction mixture and treating the quenched reaction mixture to obtain a first solid. The first solid is purified by a combination of techniques to produce a solid comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine with sufficient purity to be used as a monomer in the synthesis of clear polymers. | 10-02-2008 |
20100010273 | PROCESS FOR PRODUCING BISPHENOL-A - A process for preparing 2,2-bis(4-hydroxyphenyl)propane (p,p-bisphenol-A) from 2,4,4-trimethyl-2-(4-hydroxyphenyl)chroman (chroman 1.5) is disclosed. Phenol and chroman 1.5 are contacted over an acidic ion exchange resin at a given temperature for a given period of time. The process results in improved quality of p,p-bisphenol-A, better performance of catalyst, improved raw material usage, and reduced waste. | 01-14-2010 |
Gurram Kishan, Kolkata IN
Patent application number | Description | Published |
---|---|---|
20120322703 | COMPOSITIONS HAVING REDUCED FRICTIONAL COEFFICIENT, METHOD OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME - Disclosed herein is a composition comprising an organic polymer and about 2 to about 10 weight percent of an ionic liquid. The ionic liquid can be a halogenated or non-halogenated ionic liquid. Disclosed herein too are articles manufactured from the composition. | 12-20-2012 |
Hari Kishan, New Delhi IN
Patent application number | Description | Published |
---|---|---|
20150061706 | RESISTIVE TYPE HUMIDITY SENSOR BASED ON POROUS MAGNESIUM FERRITE PELLET - The present invention relates to a process for preparing a humidity sensor based on resistive type porous Magnesium Ferrite (MgFe | 03-05-2015 |
Kalur Sai Kishan, San Ramon, CA US
Patent application number | Description | Published |
---|---|---|
20110078135 | DATABASE INDEX MONITORING SYSTEM - An index monitoring system for selectively removing an index, where the index is used in a computerized database search. An example method implemented by the system includes displaying a list of indexes on the display device; providing an indication of an index usage criterion associated with each of two or more of the indexes, where the index usage criterion is derived at least in part from prior execution of a particular database query statement; displaying on the display device an indication of the particular database query statement; and optionally accepting a signal from a user-input device to remove an index. | 03-31-2011 |
Shanka Gopinath Kishan, Bangalore IN
Patent application number | Description | Published |
---|---|---|
20100205418 | CONFIGURING OF INTELLIGENT ELECTRONIC DEVICE - The present disclosure provides a method, apparatus and configuration arrangement for configuring an intelligent electronic device, in which a group of function blocks defining at least a part of a configuration of an intelligent electronic device is provided, connection lines between the function blocks are defined, a fixed function block having a fixed cycle time value is located in the group of function blocks, and setting a configuration setting for a function block that is connected to the fixed function block. | 08-12-2010 |
Shyam Kishan, Indianapolis, IN US
Patent application number | Description | Published |
---|---|---|
20150272628 | SPINAL FIXATION DEVICE - A spinal fixation device includes an inner housing, an outer housing, a screw, and a pivot inhibitor. The outer housing is circumferentially disposed around at least a portion of the inner housing, wherein the outer and inner housings are translatable relative to one another to cause transitioning of the spinal fixation device between a locked configuration and an unlocked configuration. The screw including a screw head pivotably coupled to a lower portion of the inner housing and a shaft extending from the screw head. The pivot inhibitor is coupled to one of the inner housing or screw, such that pivoting of the inner housing about the screw head is inhibited in a direction of the pivot inhibitor. | 10-01-2015 |
Srinivasa Rajan Kishan, Carrollton, TX US
Patent application number | Description | Published |
---|---|---|
20080214141 | SYSTEM AND METHOD FOR ALLOWING CALLBACK ON AN EMERGENCY CALL - A system and method suspends incoming call-barring for a subscriber in a telecommunications network for a specified period of time when an emergency call is initiated by the subscriber. During the time period, there is no incoming call-barring for the subscriber making the emergency call and a call from any number can be received. The PSAP is thus allowed to call the subscriber in case the emergency call is disconnected without being completed. | 09-04-2008 |