DS

David W. Stassen

ZT Zyga Technology: 3 patents #6 of 7Top 90%
ST Spin Tech: 2 patents #9 of 25Top 40%
Overall (All Time): #995,519 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9833328 System and methods for facet joint treatment Robert L. Assell, Brian P. Beaubien 2017-12-05
9233006 Systems and methods for facet joint treatment Robert L. Assell, Brian P. Beaubien 2016-01-12
8961613 Low friction resurfacing implant Robert L. Assell, Brian P. Beaubien 2015-02-24
5658337 Intervertebral fusion implant Douglas W. Kohrs, Hansen Yuan 1997-08-19
5609636 Spinal implant Douglas W. Kohrs, Hansen Yuan 1997-03-11