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USPTO Patent Rankings Data through Dec 31, 2025
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Amitava Sengupta — 20 Patents

CECelgard: 16 patents #7 of 126Top 6%
3M: 2 patents #5,350 of 11,543Top 50%
NTNew Jersey Institute Of Technology: 1 patents #161 of 441Top 40%
WAWacker: 1 patents #24 of 42Top 60%
Charlotte, NC: #161 of 4,868 inventorsTop 4%
North Carolina: #2,313 of 45,564 inventorsTop 6%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Amitava Sengupta has been granted 20 US patents while listed as an inventor at Celgard. The first was granted in 1986 and the most recent in August 2025. Amitava Sengupta ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Amitava Sengupta in Charlotte, NC, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12390770 Contactor system and method of operating contactor system Ravi Kolakaluri, Vadim N. Savvateev, Gareth P. Taylor, Shannon S. Le Blanc, Dian Zheng +5 more 2025-08-19
9541302 Flat panel contactors and methods Gareth P. Taylor, Timothy D. Price, Paul A. Peterson, C. Glen Wensley 2017-01-10 $16,748,000
8876945 High pressure liquid degassing membrane contactors and methods of manufacturing and use Gareth P. Taylor 2014-11-04
8778055 High pressure liquid degassing membrane contactors and methods of manufacturing and use Gareth P. Taylor 2014-07-15
8551338 Wafer-shaped hollow fiber module for in-line use in a piping system Gareth P. Taylor 2013-10-08
8506685 High pressure liquid degassing membrane contactors and methods of manufacturing and use Gareth P. Taylor 2013-08-13
8318022 Wafer-shaped hollow fiber module for in-line use in a piping system Gareth P. Taylor 2012-11-27
8158001 Wafer-shaped hollow fiber module for in-line use in a piping system Gareth P. Taylor 2012-04-17
7803274 Contained liquid membrane contactor and a method of manufacturing the same Gareth P. Taylor, Timothy D. Price, Linus I. Holstein, Tony R. Vido 2010-09-28
7638049 Three-port high performance mini hollow fiber membrane contactor Linus I. Holstein, E. Wayne Bouldin, Jr. 2009-12-29
D546768 Three-port high performance mini hollow fiber membrane contactor Linus I. Holstein, E. Wayne Bouldin, Jr. 2007-07-17
D546769 Three-port high performance mini hollow fiber membrane contactor Linus I. Holstein, E. Wayne Bouldin, Jr. 2007-07-17
D538749 Three-port high performance mini hollow fiber membrane contactor Linus I. Holstein, E. Wayne Bouldin, Jr. 2007-03-20
6790262 Contactor for debubbling an ink Daniel S. Huntsberger, Brian Miller 2004-09-14
6616841 Hollow fiber membrane contactor Kwantai Cho, Clifton Delozier, Linus I. Holstein, R. Pittman, Charles J. Runkle 2003-09-09
6558450 Method for debubbling an ink Daniel S. Huntsberger, Brian Miller 2003-05-06
6402818 Degassing a liquid with a membrane contactor — 2002-06-11
6149817 Shell-less hollow fiber membrane fluid contactor Paul A. Peterson, Charles J. Runkle, Frederick E. Wiesler 2000-11-21
5637224 Hollow fiber contained liquid membrane pervaporation for removal of volatile organic compounds from aqueous solutions Kamalesh K. Sirkar, Dali Yang, Sudipto Majumdar, Suphan Kovenklioglu 1997-06-10
4629359 Power trowel — 1986-12-16

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