Inventor · disambiguated record
Amitabh Gupta
Also filed as: GUPTA AMITABH
12 granted patents·6 pending applications·326 citations·filing 1999–2021
92Inventor score
Files withPRAXAIR TECHNOLOGY INC8CHENG ALAN T Y3CONNERY KAREN ANNE3CHAKRAVARTI SHRIKAR2CHAKRAVARTHY VIJAYARAGHAVAN SR1
Top patents by PatentIndex Score
18 records- 0192US6497852B2Carbon dioxide recovery at high pressureFiled 2000·Granted Dec 24, 2002·84 cites·6 claims
- 0288US6174506B1Carbon dioxide recovery from an oxygen containing mixturePRAXAIR TECHNOLOGY INC·Filed 1999·Granted Jan 16, 2001·83 cites·6 claims
- 0383US6165433ACarbon dioxide recovery with composite amine blendsPRAXAIR TECHNOLOGY INC·Filed 1999·Granted Dec 26, 2000·63 cites·9 claims
- 0482US8178318B2Method for controlling pH, osmolality and dissolved carbon dioxide levels in a mammalian cell culture process to enhance cell viability and biologic product yieldCHENG ALAN T Y·Filed 2010·Granted May 15, 2012·5 cites·21 claims
- 0579US6592829B2Carbon dioxide recovery plantPRAXAIR TECHNOLOGY INC·Filed 2001·Granted Jul 15, 2003·27 cites·9 claims
- 0678US7699980B2System for activated sludge wastewater treatment with high dissolved oxygen levelsPRAXAIR TECHNOLOGY INC·Filed 2008·Granted Apr 20, 2010·7 cites·20 claims
- 0775US8241904B2System and method for controlling a mammalian cell culture processCHENG ALAN T Y·Filed 2009·Granted Aug 14, 2012·3 cites·24 claims
- 0873US6669916B2Method and apparatus for purifying carbon dioxide feed streamsPRAXAIR TECHNOLOGY INC·Filed 2001·Granted Dec 30, 2003·19 cites·8 claims
- 0971US9181521B2Bioreactor with upward flowing impeller system for use in a mammalian cell culture processCHENG ALAN T Y·Filed 2012·Granted Nov 10, 2015·1 cites·8 claims
- 1066US6146603ASystem for recovering carbon dioxide from a lean feedPRAXAIR TECHNOLOGY INC·Filed 1999·Granted Nov 14, 2000·32 cites·10 claims
- 1165US7699986B2Method for activated sludge wastewater treatment with high dissolved oxygen levelsPRAXAIR TECHNOLOGY INC·Filed 2008·Granted Apr 20, 2010·2 cites·23 claims
- 1251US11519657B1Dry ice containing shippersPRAXAIR TECHNOLOGY INC·Filed 2021·Granted Dec 6, 2022·0 cites·10 claims
- 1349US2008141715A1Method and system for sterilization of a cryogenCHAKRAVARTHY VIJAYARAGHAVAN SR·Filed 2006·Application pending·0 cites
- 1447US2008149225A1Method for oxygen free carburization in atmospheric pressure furnacesCONNERY KAREN ANNE·Filed 2008·Application pending·0 cites
- 1544US2008149226A1Method of optimizing an oxygen free heat treating processCONNERY KAREN ANNE·Filed 2006·Application pending·0 cites
- 1644US2008149227A1Method for oxygen free carburization in atmospheric pressure furnacesCONNERY KAREN ANNE·Filed 2006·Application pending·0 cites
- 1743US2007148070A1Production of moderate purity carbon dioxide streamsCHAKRAVARTI SHRIKAR·Filed 2005·Application pending·0 cites
- 1843US2007148069A1Carbon dioxide recovery from flue gas and the likeCHAKRAVARTI SHRIKAR·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →