Sircar; Shivaji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sircar; Shivaji.The latest application filed is for "oxygen concentrator system and method".
Company Profile
1.49.4
- Sircar; Shivaji - Allentown PA
- Sircar, Shivaji - Wescosville PA
Patent Activity
| Patent | Date |
|---|---|
| Oxygen concentrator system and method Grant 9,649,589 - Vemula , et al. May 16, 2 | 2017-05-16 |
| Oxygen Concentrator System And Method App 20150375162 - VEMULA; RAMA RAO ; et al. | 2015-12-31 |
| Miniature oxygen concentrators and methods Grant 8,226,745 - Siew-Wah , et al. July 24, 2 | 2012-07-24 |
| Miniature Oxygen Concentrators And Methods App 20100300285 - Siew-Wah; Chai ; et al. | 2010-12-02 |
| Rapid thermal swing adsorption App 20030037672 - Sircar, Shivaji | 2003-02-27 |
| Oxygen production by adsorption Grant 6,468,328 - Sircar , et al. October 22, 2 | 2002-10-22 |
| Oxygen production by adsorption App 20020108494 - Sircar, Shivaji ; et al. | 2002-08-15 |
| Integrated steam methane reforming process for producing carbon monoxide Grant 6,328,945 - Hufton , et al. December 11, 2 | 2001-12-11 |
| PSA process for removal of bulk carbon dioxide from a wet high-temperature gas Grant 6,322,612 - Sircar , et al. November 27, 2 | 2001-11-27 |
| Oxygen generation process and system using single adsorber and single blower Grant 6,146,447 - Sircar , et al. November 14, 2 | 2000-11-14 |
| Process and apparatus for the production of hydrogen by steam reforming of hydrocarbon Grant 6,103,143 - Sircar , et al. August 15, 2 | 2000-08-15 |
| Carbonaceous adsorbent membranes for gas dehydration Grant 6,004,374 - Rao , et al. December 21, 1 | 1999-12-21 |
| Recovery of volatile organic compounds from gas streams Grant 5,779,768 - Anand , et al. July 14, 1 | 1998-07-14 |
| Hydrogen recovery by pressure swing adsorption integrated with adsorbent membranes Grant 5,753,010 - Sircar , et al. May 19, 1 | 1998-05-19 |
| Composite porous carbonaceous membranes Grant 5,507,860 - Rao , et al. April 16, 1 | 1996-04-16 |
| Hydrogen recovery by adsorbent membranes Grant 5,507,856 - Rao , et al. April 16, 1 | 1996-04-16 |
| Hydrogen recovery by adsorbent membranes Grant 5,447,559 - Rao , et al. September 5, 1 | 1995-09-05 |
| Hydrogen recovery by adsorbent membranes Grant 5,435,836 - Anand , et al. July 25, 1 | 1995-07-25 |
| Method of making composite porous carbonaceous membranes Grant 5,431,864 - Rao , et al. July 11, 1 | 1995-07-11 |
| Hydrogen recovery by adsorbent membranes Grant 5,354,547 - Rao , et al. October 11, 1 | 1994-10-11 |
| Moisture removal from a wet gas Grant 5,240,472 - Sircar August 31, 1 | 1993-08-31 |
| Gas separation by adsorbent membranes Grant 5,104,425 - Rao , et al. April 14, 1 | 1992-04-14 |
| Vacuum swing adsorption process for production of 95+% N.sub.2 from ambient air Grant 5,084,075 - Sircar January 28, 1 | 1992-01-28 |
| Gas separation by rapid pressure swing adsorption Grant 5,071,449 - Sircar December 10, 1 | 1991-12-10 |
| Process for preparing alkyl tert-alkyl ethers Grant 5,030,768 - Chen , et al. July 9, 1 | 1991-07-09 |
| Separation of liquid mixtures by concentration swing adsorption Grant 5,026,482 - Sircar June 25, 1 | 1991-06-25 |
| Closed-loop thermal regeneration of adsorbents containing reactive adsorbates Grant 4,971,606 - Sircar , et al. November 20, 1 | 1990-11-20 |
| Deoxygenation of inert gas streams with methanol Grant 4,859,435 - Roberts , et al. * August 22, 1 | 1989-08-22 |
| Recovery of nitrogen, hydrogen and carbon dioxide from hydrocarbon reformate Grant 4,813,980 - Sircar March 21, 1 | 1989-03-21 |
| Fractionation of multicomponent gas mixtures by pressure swing adsorption Grant 4,790,858 - Sircar December 13, 1 | 1988-12-13 |
| Regeneration of adsorbents Grant 4,784,672 - Sircar November 15, 1 | 1988-11-15 |
| Recovery of methane from land fill gas Grant 4,770,676 - Sircar , et al. September 13, 1 | 1988-09-13 |
| Preparation of high purity oxygen Grant 4,756,723 - Sircar July 12, 1 | 1988-07-12 |
| Production of mixed gases of controlled composition by pressure swing adsorption Grant 4,705,541 - Sircar November 10, 1 | 1987-11-10 |
| Technique for surface oxidation of activated carbon Grant 4,702,749 - Sircar , et al. October 27, 1 | 1987-10-27 |
| Oxidation of carbonaceous material Grant 4,690,696 - Sircar , et al. September 1, 1 | 1987-09-01 |
| Production of oxygen enriched air Grant 4,685,939 - Kratz , et al. August 11, 1 | 1987-08-11 |
| Binary ion exchanged type X zeolite adsorbent Grant 4,557,736 - Sircar , et al. December 10, 1 | 1985-12-10 |
| Gas separation kinetics in commercial pellets Grant 4,529,416 - Sircar , et al. July 16, 1 | 1985-07-16 |
| Argon purification Grant 4,477,265 - Kumar , et al. October 16, 1 | 1984-10-16 |
| Pressure swing adsorption process for a medical oxygen generator for home use Grant 4,477,264 - Kratz , et al. October 16, 1 | 1984-10-16 |
| Control system and method for air fractionation by vacuum swing adsorption Grant 4,472,177 - Sircar September 18, 1 | 1984-09-18 |
| Adsorptive process for the removal of carbon dioxide from a gas Grant 4,472,178 - Kumar , et al. September 18, 1 | 1984-09-18 |
| Pressurized, non-refillable recreation ball inflated with sulfur hexafluoride Grant 4,358,111 - Papinsick , et al. November 9, 1 | 1982-11-09 |
| Separation of multicomponent gas mixtures Grant RE31,014 - Sircar August 17, 1 | 1982-08-17 |
| Vacuum swing adsorption for air fractionation Grant 4,264,340 - Sircar , et al. April 28, 1 | 1981-04-28 |
| Removal of water and carbon dioxide from air Grant 4,249,915 - Sircar , et al. February 10, 1 | 1981-02-10 |
| Separation of multicomponent gas mixtures by pressure swing adsorption Grant 4,171,207 - Sircar October 16, 1 | 1979-10-16 |
| Separation of multicomponent gas mixtures Grant 4,171,206 - Sircar October 16, 1 | 1979-10-16 |
| Hydrogen purification by selective adsorption Grant 4,077,779 - Sircar , et al. March 7, 1 | 1978-03-07 |
| Method for removing low concentrations of oxidizable organic contaminants from an oxygen-containing inert gas Grant 4,025,605 - Dalton, Jr. , et al. May 24, 1 | 1977-05-24 |
| Fractionation of air by adsorption Grant 4,013,429 - Sircar , et al. March 22, 1 | 1977-03-22 |
| Oxygen enrichment process Grant 3,957,463 - Drissel , et al. May 18, 1 | 1976-05-18 |
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