Schedule of summary of common stock warrants (Tables)

6 Months Ended

Jun. 30, 2015

Schedule of summary of common stock warrants (Tables)

Schedule of summary of common stock warrants (Tables)

The following table summarizes common stock warrants as of each period:

	Series A	Series B	Series C	Series D	A,B,C,D Total Warrants
Outstanding at December 31, 2013	1,188,909	5,332,981	128,180	15,312,627	21,962,697
Issued	-	-	-	-	-
Exercised	(1,188,909)	(5,328,481)	(128,180)	(807,861)	(7,453,431)
Outstanding at December 31, 2014	-	4,500	-	14,504,766	14,509,266
Issued	-	-	-	-	-
Exercised	-	-	-	(1,452,854)	(1,452,854)
Outstanding at  June 30, 2015	-	4,500	-	13,051,912	13,056,412

Series E, F, G and H warrants were issued for investment banking and advisory services during 2009.  The following table summarizes E, F, G and H warrants as of each period:

	Series E    $1.00 exercise   price	Series F $3.00 exercise price	Series G  $0.65 exercise price	Series H  $7.00 exercise price	E,F,G,H Total Warrants
Outstanding at December 31, 2013	107,931	369,037	88,579	689,159	1,254,706
Issued	-	-	-	-	-
Exercised	(107,931)	(369,037)	(88,579)	-	(565,547)
Outstanding at December 31, 2014	-	-	-	689,159	689,159
Issued	-	-	-	-	-
Exercised	-	-	-	-	-
Outstanding at June 30, 2015	-	-	-	689,159	689,159
Shares issued in 2014 as a result of cashless exercise	73,388	210,870	70,152	-	354,410