Gregory E. Gilligan — 12 Patents at 3M

Gregory E. Gilligan has been granted 12 US patents while listed as an inventor at 3M. The first was granted in 2000 and the most recent in June 2011. Gregory E. Gilligan ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Gregory E. Gilligan in Hastings, MN, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7967443	Projection system using reflective polarizers	Jiaying Ma	2011-06-28	$18,874,000
7673993	Projection system using reflective polarizers	Jiaying Ma	2010-03-09	$25,154,000
7405784	Compensators for liquid crystal displays with biaxially stretched single film with crystallization modifier	Fred J. Roska, Richard C. Allen, Matthew B. Johnson, Steven J. Rhyner, William W. Merrill +2 more	2008-07-29	$15,057,000
7298442	Cholesteric liquid crystal optical bodies and methods of manufacture and use	Christopher Bowley, Ikuko Ebihara, Richard J. Pokorny, Marc D. Radcliffe, Prabhakara S. Rao +1 more	2007-11-20	$10,803,000
7110072	Compensators for liquid crystal displays	Fred J. Roska, Richard C. Allen, Matthew B. Johnson, Steven J. Rhyner, William W. Merrill +2 more	2006-09-19	$19,947,000
6876427	Cholesteric liquid crystal optical bodies and methods of manufacture and use	Christopher Bowley, Ikuko Ebihara, Richard J. Pokorny, Marc D. Radcliffe, Prabhakara S. Rao +1 more	2005-04-05	$36,704,000
6624936	Color-compensated information displays	Keith M. Kotchick, Ikuko Ebihara	2003-09-23	$13,340,000
6551014	Raised pavement marker with improved lens	Sithya S. Khieu, Thomas R. Borden	2003-04-22	$29,486,000
6431788	Wear resistant pavement marking	Thomas P. Hedblom, Eric E. Rice, Curtis W. Meverden, Thomas Krech	2002-08-13	$13,140,000
6265061	Retroflective articles including a cured ceramer composite coating having abrasion and stain resistant characteristics	Soonkun Kang, John L. Ethen, Christopher J. Gustafson, Sithya S. Khieu, Kanta Kumar +2 more	2001-07-24	$26,325,000
6132861	Retroreflective articles including a cured ceramer composite coating having a combination of excellent abrasion, dew and stain resistant characteristics	Soonkun Kang, John L. Ethen, Christopher J. Gustafson, Tzu-Li J. Huang, Sithya S. Khieu +2 more	2000-10-17	$21,776,000
D422932	Pavement marker	Sithya S. Khieu	2000-04-18

Gregory E. Gilligan — 12 Patents

Issued Patents All Time

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