Ravikiran
Pasupuleti Sureshbabu Ravikiran, Chennai IN
Patent application number | Description | Published |
---|---|---|
20090245516 | Method and system for high entropy encryption using an unpredictable seed based on user regisration time - A method of encryption of data for transmission in a secured manner over a communication channel. The encoding key is continually changed in response to each packet of data encoded, depending on a Seed Key and time stamping of data packets or a pseudo random sequence generated using synchronized clocks. | 10-01-2009 |
R. Ravikiran, Cleveland, OH US
Patent application number | Description | Published |
---|---|---|
20080242750 | Polycyclic polymers containing pendant ion conducting moieties - A polymer comprising polycyclic repeating units having recurring ion conducting groups and optional crosslinkable groups is disclosed. The present invention provides the capability of tailoring polymers to impart unique properties to membranes fabricated from the polymers. Membranes comprising the polymers and methods for preparing the membranes and their use in ion conducting membranes, particularly in fuel cells, are also provided. | 10-02-2008 |
Ramakrishna Ravikiran, Centennial, CO US
Patent application number | Description | Published |
---|---|---|
20100282467 | Sulfonated internal olefin surfactant for enhanced oil recovery - A process for recovering oil from an oil-bearing formation comprises introducing into said formation an aqueous composition comprising at least one sulfonated derivative of one or more internal olefins, said internal olefins being characterized by having low amounts of tri-substitution on the olefin bond, said sulfonated derivative being obtained by sulfonating a composition comprising internal olefins of the formula: | 11-11-2010 |
20140073541 | SURFACTANTS FOR ENHANCED OIL RECOVERY - Surfactant compositions useful for oil recovery comprise from 10 to 80 wt. % of a prapoxylated C12-C20 alcohol sulfate, from 10 to 80 wt. % of a C12-C20 internal olefin sulfonate, and from 0.1 to 10 wt. % of an ethoxylated C4-C12 alcohol sulfate. A minor proportion of the ethoxylated alcohol sulfate reduces or eliminates the need to rely on costly cosolvents for achieving good performance in enhanced oil recovery processes. Low interfaoial tensions and low microemulsion viscosities can be achieved when the ethoxylated alcohol sulfate accompanies the propoxytated alcohol sulfate and internal olefin sulfonate. Aqueous concentrates comprising water and the surfactant compositions described above are also disclosed. Dilution of the surfactant composition or aqueous concentrate with water or brine to the desired anionic actives level provides an injectable composition useful for EOR applications. Stable, low-viscosity oil-in-water microemulsions comprising crude oil, water, and the surfactant compositions are also disclosed. | 03-13-2014 |
Ramakrishna Ravikiran, Strongville, OH US
Patent application number | Description | Published |
---|---|---|
20100061688 | OPTICAL WAVEGUIDES AND METHODS THEREOF - Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures. | 03-11-2010 |
20100062378 | OPTICAL WAVEGUIDES AND METHODS THEREOF - Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures. | 03-11-2010 |
Ramakrishna Ravikiran, Strongsville, OH US
Patent application number | Description | Published |
---|---|---|
20090215976 | Photosensitive dielectric resin compositions, films formed therefrom and semiconductor and display devices encompassing such films - Some embodiments in accordance with the present invention relate to norbornene-type polymers and to photosensitive dielectric resin compositions formed therefrom. Other embodiments relate to films formed from such compositions and to devices, such as electrical, electronic and optoelectronic devices, that encompass such films. | 08-27-2009 |
Ramakrishna Ravikiran, Northfield, IL US
Patent application number | Description | Published |
---|---|---|
20120064458 | OPTICAL WAVEGUIDES AND METHODS THEREOF - Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures. | 03-15-2012 |