Ashok Sengupta — 12 Patents at 3M

Ashok Sengupta has been granted 12 US patents while listed as an inventor at 3M. The first was granted in 1996 and the most recent in December 2008. Ashok Sengupta ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Ashok Sengupta in London, ON, CA.

Patents per Year

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7459167	Biocidal polyurethane compositions and methods of use	Jeffrey L. Jacobs, Matthew T. Scholz, Kestutis J. Tautvydas	2008-12-02	$20,257,000
7290960	Sprayable mining liner	Jiangdong Tong	2007-11-06	$22,276,000
7011865	Sprayable mining liner	Jiangdong Tong	2006-03-14	$39,490,000
6664414	Process for reducing residual isocyanate	Jiangdong Tong	2003-12-16	$12,877,000
6432396	Limiting the presence of microorganisms using polymer-bound metal-containing compositions	Kevin D. Landgrebe, David John Hastings, Terrance P. Smith, Gregory D. Cuny, Chandrika D. Mudalige +1 more	2002-08-13	$13,140,000
6313335	Room temperature curable silane terminated and stable waterborne polyurethane dispersions which contain fluorine and/or silicone and low surface energy coatings prepared therefrom	Gary P. Roberts, Lowell W. Holland, Richard G. Hansen, George G. I. Moore, Miguel A. Guerra	2001-11-06	$17,212,000
6248364	Encapsulation process and encapsulated products	Kent E. Nielsen, Galina Barinshteyn, Kai Li	2001-06-19	$36,664,000
6080418	Suspensions of microcapsules containing biologically active ingredients and adhesive microspheres	Kent E. Nielsen, Galina Barinshteyn, Kai Li, John P. Banovetz	2000-06-27	$35,761,000
6072019	Water-based polyurethane polymer, release coating, adhesive tape and process of preparation	—	2000-06-06	$33,140,000
6046295	Room temperature curable silane-terminated polyurethane dispersions	Kurt C. Frisch, Bruce H. Edwards, Lowell W. Holland, Richard G. Hansen, Ian R. Owen	2000-04-04	$23,770,000
5750630	Water-based polyurethane polymer, release coating, adhesive tape and process of preparation	—	1998-05-12	$17,942,000
5554686	Room temperature curable silane-terminated polyurethane dispersions	Kurt C. Frisch, Bruce H. Edwards, Lowell W. Holland, Richard G. Hansen, Ian R. Owen	1996-09-10	$15,719,000

Ashok Sengupta — 12 Patents

Patents per Year

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