Table 2.

Patents on GFP initially aggregated and outlicensed by GE Healthcare

Patent No.	Title	Legal status	Expiration date
US 5,491,084	Uses of green fluorescent protein	Expired	2013-09-10
US 6,146,826	Green fluorescent protein	Expired	2017-11-14
US 5,625,048 US 5,777,079 US 6,319,669 US 6,066,476	Modified green fluorescent proteins Modified green fluorescent proteins Modified green fluorescent proteins Modified green fluorescent proteins	Expired Expired Expired Expired	2014-11-10 2014-11-10 2014-11-10 2014-11-10
US 5,804,387 US 6,090,919	FACS-optimized mutants of the green fluorescent protein FACS-optimized mutants of the green fluorescent protein	Expired Expired	2016-02-01 2017-01-31
US 5,958,713	Method of detecting biologically active substances by using GFP	Expired	2015-01-31
US 5,968,738	Two-reporter FACS analysis of mammalian cells using GFP	Expired	2015-12-06
US 5,994,077	Fluorescence-based isolation of differentially induced genes	Expired	2015-01-31
US 6,054,321 US 6,077,707 US 6,124,128 US 6,403,374	Long wavelength engineered fluorescent proteins Long wavelength engineered fluorescent proteins Long wavelength engineered fluorescent proteins Long wavelength engineered fluorescent proteins	Expired Expired Expired Expired	2016-08-16 2016-08-16 2016-08-16 2016-08-16
US 6,172,188 US 6,818,443 US 7,314,915	Novel fluorescent proteins Novel fluorescent proteins Novel fluorescent proteins	Expired Expired Expired	2015-09-22 2015-09-22 2015-09-22
CA 2232727	Novel variants of green fluorescent protein, GFP	Expired	2016-01-31
EP 0804457 EP 0815257 EP 0851874	Modified green fluorescent proteins A method of detecting biologically active substances Novel variants of green fluorescent protein, GFP	Expired Expired Expired	2014-11-10 2016-01-31 2016-01-31
JP 3283523 JP 3535177	Modified green fluorescent protein A new variant of a GFP is a green fluorescent protein	Expired Expired	2015-11-13 2016-01-31