Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JN

Julian Nikolchev

COConceptus: 22 patents #1 of 54Top 2%
PMPivot Medical: 14 patents #3 of 36Top 9%
PHPro Duct Health: 4 patents #2 of 12Top 20%
Stryker: 3 patents #482 of 1,405Top 35%
CHCytyc Health: 2 patents #3 of 13Top 25%
BEBayer Essure: 2 patents #9 of 30Top 30%
AAAesculap Ag: 2 patents #165 of 481Top 35%
BGBiosensors International Group: 1 patents #44 of 62Top 75%
ATAlien Technology: 1 patents #37 of 54Top 70%
Portola Valley, CA: #34 of 621 inventorsTop 6%
California: #6,736 of 386,348 inventorsTop 2%
Overall (All Time): #45,785 of 4,157,543Top 2%
55 Patents All Time

Issued Patents All Time

Showing 51–55 of 55 patents

Patent #TitleCo-InventorsDate
5935056 Access catheter and method for maintaining separation between a falloposcope and a tubal wall John Kerin, Charles Milo, James Doty 1999-08-10
5873815 Access catheter and method for maintaining separation between a falloposcope and a tubal wall John Kerin, Charles Milo, James Doty, Dai Ton, Richard E. Hill +2 more 1999-02-23
5746769 Endoluminal coil delivery system having a mechanical release mechanism Dai Ton 1998-05-05
5716321 Method for maintaining separation between a falloposcope and a tubal wall John Kerin, Charles Milo, James Doty 1998-02-10
5551443 Guidewire-type device axially moveable by torque or axial force and methods for use thereof Ivan Sepetka, Phong Pham, Dai Ton That 1996-09-03