Changes

'''3.Material used on stent:''' Recent patents focuses on Biodegrable polymers, Shape memory alloys or general polymer based stent

==Major Players==

*Boston Scientific Limited, Abbott, Medtronic and Cook Inc. are the major players in ureteral stent research field.

[[Image:Major playersnew.jpg|thumb|center|1000px|Major Players]]

==IP Activity==

*Patenting activity has been high growth rate during the period 2001 to 2005 with a peak no. of patents in year 2005, followed by saturation during the period 2006 to 2008 and after that a gradual declination upto year 2010 in the ureteral stent research area.

[[Image:IPactivity3.png|thumb|center|1000px|year wise IP activity]]

=Competitor Analysis=